Kleczewski joins UD Cooperative Extension as plant pathology specialist

May 15, 2013 under Cooperative Extension

Nathan Kleczewski has joined the University of Delaware Cooperative Extension Service as the plant pathology specialist. He replaces Bob Mulrooney, who retired after 38 years with UD Cooperative Extension.

Kleczewski received his bachelor of science degree in biology from University of Wisconsin-Oshkosh and his doctorate in plant pathology from Ohio State University. He did postdoctoral research at Indiana and Purdue universities. Most recently, he worked as a plant pathologist with FMC Agricultural Products.

At UD, Kleczewski’s work will concentrate on plant pathology in field crops. Although he has only been in his new job since May 1, Kleczewski has hit the ground running. He already has set up meetings with local growers to better understand their needs.

“My work is grower-driven,” notes Kleczewski. “All of my applied research projects will focus on the concerns of Delaware’s farmers.”

KleczewskiNathanRecognizing the ever-increasing role that technology plays in daily life, Kleczewski will create a Facebook page where he will post up-to-the-minute information on plant diseases in Delaware and surrounding states. A farmer in the field need only glance at his or her smartphone to find out the latest issues and learn how to prevent or mitigate crop loss.

“We are very pleased to have Nathan join our Extension team. Each growing season brings its own disease challenges and having plant pathology expertise on our team in Delaware is a critical aspect of successful crop production and sustaining Delaware agriculture,” says Michelle Rodgers, associate dean and director of UD Cooperative Extension and Outreach.

Kleczewski grew up in rural Wisconsin. Both his maternal and paternal grandparents owned dairy farms and his uncles currently work as dairy farmers. He always enjoyed studying the sciences but when the time came to enter graduate school he told a college professor, “I want to work in the sciences but I want to do work that my uncles will understand and appreciate. I want to make a difference in the lives of people I know.”

His professor suggested plant pathology and Kleczewski quickly discovered that it was the perfect discipline for his interests. Kleczewski’s wife, Victoria, also works in the agricultural field; she is employed in field development for DuPont.

Kleczewski is enjoying a busy spring. He and his wife settled on a new house in Middletown in late April, and are looking forward to the birth of their first child later this month.

Article by Margo McDonough

Photo by Danielle Quigley

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Native Delaware: UD expert releases list of top five bad bugs of summer

May 7, 2013 under CANR News, Cooperative Extension

Summer is right around the corner and along with the good (long days, holiday weekends and lush, green landscapes) comes the bad (humidity, beach traffic and bugs).

Admittedly, there are plenty of beneficial insects that pollinate flowers or gobble pests, and plenty of insects that just hang around, doing neither bad nor good.

In fact, beneficial insects far outnumber pests, according to Brian Kunkel, an entomologist with University of Delaware Cooperative Extension. “More than 97 percent of arthropods typically seen in the home landscape are either beneficial or innocuous,” he says.

But it’s the other three percent that can drive us crazy, wreaking havoc with our prized rose bushes, tomato plants or elm trees. Or, in the case of biting insects, leaving itchy welts all over us.

Kunkel has pulled together a list of the worst pests – what he’s dubbed the “top five bad bugs of summer.”

“Another entomologist might come up with a very different ranking – pest conditions change from year to year and from location to location. I’ve had people call me about a stink bug outbreak in one neighborhood and the next neighborhood only had mild issues,” notes Kunkel. “But these ‘top five bad bugs’ are the ones that Extension gets the most calls about; the ones that inflict the most damage in area gardens, nurseries, and neighborhoods.”

Here’s Kunkel’s list of the top five bad bugs of summer 2013:

1. Scale pests

2. Wasps

3. Bagworms

4. Japanese beetles

5. Stink bugs

You might be wondering why cicadas didn’t top this list – after all, it’s been all over the news about the millions of cicadas ready to emerge in the Mid-Atlantic after a 17-year slumber.

While plenty of cicadas will be flying around southeastern Pennsylvania, southern New Jersey and Maryland this summer, Delaware will see only the occasional cicada crossing the state line. That’s because Delaware’s brood – called Brood X – is still burrowed under ground and isn’t due to emerge until 2021.

Bagworms are a pest in DelawareFar more worrisome than big, fat cicadas are teeny tiny scale pests, notes Kunkel. In fact, scale pest are the single biggest threat to Delaware home landscapes virtually every growing season, he says.

These insidious pests are easy to overlook because of their diminutive size and inconspicuous color. Oystershell scales are about one-eighth of an inch long and dark brown, blending right into the tree branches that they latch onto. It usually isn’t until the branch is dying that the homeowner realizes that these bumps are actually insects sucking sap from the tree.

While oystershell scales prefer certain trees – willows, lilacs, dogwoods and poplars here, as well as aspens and cotoneasters out West – they aren’t picky. They’ve been found on 130 different species of plants. And oystershell is just one of 8,000-plus different scale insects; almost every plant is vulnerable to some type of scale insect.

Kunkel rates wasps as the number two bad guy, not because of damage they do to the landscape but because of the damage they can do to people.

Only the female wasp stings but when she does, you’re going to know it. Even a normal, non-allergic reaction usually results in pain, swelling and redness around the sting site. A localized reaction can bring swelling to an entire limb. Allergic reactions, of course, require immediate medical attention.

Next up on the bad bug list are bagworms. Kunkel says there is variability from year to year in the size of Delaware’s bagworm population. “Some years are a lot worse than others,” he says.

Like scale pests, bagworms start out very small and aren’t likely to be noticed by the homeowner. They are generalists in their eating habits – they are known to eat about 100 different species of plants, including cherries, pines, junipers, arborvitae and birch.

Japanese beetles makes Kunkel’s list primarily because of Sussex County outbreaks in recent years “The population of Japanese beetles in Sussex is much higher than in Kent and New Castle counties,” says Kunkel. “Georgetown has some decent-sized populations but throughout Sussex they can be an issue.”

The last pest to make it onto the bad guy list – the stink bug – is the one everyone loves to hate. The brown marmorated stink bug made serious inroads into Delaware in 2011, particularly in New Castle County. Last summer, the population was considerably lower.

Farmers and homeowners in other states have seen considerable damage to their plants. Fruit orchards have been particularly hard hit.

“Thus far, brown marmorated stink bug has been more of a nuisance than a pest in the home landscape in Delaware,” says Kunkel. “However, some of our farmers have experienced issues. We have a number of UD research projects underway so we can work to control this pest.” 

Help for what’s bugging you

Got a pest problem in your yard or garden? Call Cooperative Extension’s free garden help line. In New Castle, call 831-8862; in Kent call 730-4000; in Sussex call 856-2585, ext. 535.

Article by Margo McDonough

Photo by Brian Kunkel

This article can also be viewed on UDaily.

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Kent and Sussex Master Gardener taking applications for Class of 2013

May 1, 2013 under Cooperative Extension

The application period is open for Master Gardener training in Kent and Sussex counties. Master Gardeners enjoy gardening, have gardening experience, want to learn more about gardening and have a desire to help others in their community. Following an intensive twelve-week training program with day-time classes alternating between the two county Extension offices, the trainees volunteer a minimum of 45 hours during their first year before becoming official Master Gardeners. Training is held every other year in the fall. Sessions for the Class of 2013 will begin in September (right after Labor Day and will be completed before Thanksgiving).

Master Gardeners are working volunteers and are supported by Delaware Cooperative Extension through the University of Delaware and Delaware State University Extension offices. Master Gardeners are part of a vibrant community of individuals dedicated to growing a greener Delaware, with a more bio-diverse and sustainable environment. They extend the home garden outreach of Delaware Cooperative Extension, staffing garden “hotlines” for much of the year, offering information at events such as community fairs, festivals and farmers’ markets, talking to local civic groups and working with youth groups and schools. Many provide workshops on favorite garden topics and are available through a speakers’ bureau to make presentations for community groups upon request. A dedicated group of puppeteers in Sussex County perform an educational version of “Peter Rabbit” to the delight of children of all age

Tracy Wootten, horticultural agent for Sussex County, said, “Without these wonderful volunteers, Cooperative Extension would not be able to provide the impressive amount of outreach that is being offered to local Delaware communities.”

The training program includes formal lectures, discussion sessions, tours, workshops, and problem-solving sessions. Advanced training opportunities include state, regional and national workshops, lectures at monthly business meetings, special training sessions, and the shared experiences of a group of skilled, experienced gardeners.

The application can be found online at http://extension.udel.edu/lawngarden/master-gardener-volunteer-educators/become-a-master-gardener/

Send completed applications to: Kent County Extension Office, 69 Transportation Circle, Dover, 19901.

All applications must be received by June 1, 2013. Class size is limited. All applicants must attend a reception on June 20, 2013, from 6 to 8 p.m. at the Kent County Extension office. If accepted, you will be notified by letter and will receive further information about classes. It is the policy of the Delaware Cooperative Extension System that no person shall be subjected to discrimination on the grounds of race, color, sex, disability, age or national origin. The Delaware Cooperative Extension Master Gardener Program is provided in coordination with the University of Delaware and Delaware State University.

For more information, contact Tracy Wootten or Tammy Schirmer in Sussex County, (302) 856-2585, ext. 544 or Maggie Moor-Orth in Kent County, (302) 857-6426, or the University of Delaware Paradee Center Kent County Extension office at (302) 730-4000.

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Extension to host Retail Farm Market School

April 23, 2013 under Cooperative Extension

On Wednesday, May 29, Delaware Cooperative Extension will conduct a day-long Retail Farm Market School for anyone who handles, processes or merchandises fresh market produce, such as local farm market vendors. The school is sponsored by the University of Delaware Cooperative Extension, Penn State University, Delaware Department of Agriculture and Delaware Agritourism Association. The course runs from 9:30 a.m. to 3:30 p.m. and will be held at the Elbert N. & Ann V. Carvel Research and Education Center in Georgetown. Instructors will be Gordon Johnson from UD and John Berry from Penn State. The tuition is $45.

Topics will include produce handling and merchandising, customer service, sanitation and fresh cut produce. The course will be comprised of several delivery modes including professionally produced video segments, take-home text, post-harvest handling references, hands-on activities and a “certification quiz.”

Each school participant will receive a full-day of retail farm marketing education and networking, a 40-page text that follows the school curriculum, a professional produce knife, a digital produce thermometer, sign blanks and the opportunity to receive a Retail Produce Professional certificate.

The school material is appropriate for new employee training and as a refresher for existing employees who work with fresh produce.

University of Delaware Cooperative Extension welcomes and encourages public participation of their programs, events, and workshops scheduled for the public. All reasonable efforts will be used to meet the accessibility requests. Please contact the office two weeks prior to event to request assistance with any special needs you may have.

Registration deadline is Friday, May 17. Please contact Karen Adams at adams@udel.edu or call (302) 856-2585 ext. 540 to register, obtain additional information and directions. Class is limited to the 35 seats.

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Rose Rosette Disease Summit

April 18, 2013 under CANR News
Pictured from left to right: Steve Hutton, Michael Dobres  Kathleen Case, and Thomas Bewick

Summit participants pictured from left to right: Steve Hutton, Michael Dobres
Kathleen Case, and Thomas Bewick

A two-day national Rose Rosette Disease Summit was held April 15-16 in Newark with researchers from across the country meeting to discuss the disease and plans for future research.

Rose rosette disease (RRD) is caused by the rose rosette virus, carried by a tiny eriophyid mite.

The summit was organized by Tom Evans, professor in the Department of Plant and Soil Sciences at the University of Delaware, and Michael Dobres of the Conard-Pyle Company, and sponsored by the All-America Rose Selections and the Garden Rose Council, Inc.

The conference included a talk given by Nancy Gregory, of UD’s Cooperative Extension, on occurrence and mapping of the disease. RRD has been seen in Mid-Atlantic States since approximately 2001, originally observed on multiflora rose in the landscape. In recent years, RRD has been identified on cultivated roses, including Knockout rose, and has also been identified in public gardens.

University scientists, plant breeders, Cooperative Extension personnel, USDA representatives, private consultants, and rose growers discussed the need for good diagnostic tools, accurate mapping, cultural controls, as well as breeding for resistance. Current control strategies include keeping roses in good vigor, pruning, mite control, and cultural controls such as reducing water on leaves.

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Bloom season kicks into high gear for garden enthusiasts

April 11, 2013 under CANR News, Cooperative Extension

In April, bloom season kicks into high gear in Delaware. In fact, it might be the single best month to get outside and enjoy the views at the area’s world-class gardens.

At Winterthur, the Winterhazel Walk will soon be the star of the show, reports Linda Eirhart, assistant director of horticulture for the museum, which features a 60-acre naturalistic garden in the midst of nearly 1,000 acres of land.

Delaware bloom season kicks off“The cold weather has held things back but before long the Winterhazel Walk will dazzle with its combination of soft yellow winter hazel and the warm lavender of Korean rhododendron. This is under planted with hellebores, which are still going strong,” she says.

These species are non-native but many of Winterthur’s native plants will soon be in bloom, too. Bloodroot is a sweet little perennial with pure white, cup-shaped flowers. You can find it in Azalea Woods and other wooded areas and thickets throughout the property.

Spring beauty is another little charmer, sporting white petals with stripes that vary from pale pink to bright pink. Like bloodroot, it grows in woodlands. Pay attention to weather conditions during your visit to Winterthur. If it’s warm and sunny, spring beauty will open its petals but on a cloudy day or at night the petals close up and nod downward.

Winterthur’s bluebells aren’t in bloom quite yet but the buds have appeared and will soon burst into bloom. Eirhart says that bluebell is her favorite native wildflower.

“I love the bluebell’s shades of blues and the touch of pink and purple you can get in the blossoms,” she says. “Between the color of the flower buds and the last fading flowers, there is a good length of time of color interest.”

Sue Barton also is a fan of Virginia bluebells, which grow in clusters near the creek on her property. “It’s fun to come upon a mass of bluebells while walking in the woods,” says Barton, who is ornamental horticulture specialist for University of Delaware Cooperative Extension.

But it’s flowering redbuds, not bluebells, that signal that spring has sprung to Barton.

“The redbud has an extremely colorful, dark purple or pink flower and an unusual habit of flowers borne directly on the stem,” she says. “I like the ‘Forest Pansy’ cultivar because of its attractive bronze foliage.”

This small native tree grows wild in many of Delaware woodlands. As you buzz down I-95, check out the large stand of redbuds by the roadside, just south of Wilmington. For a more leisurely setting to enjoy redbud blooms, head to the University of Delaware Botanic Gardens. You can find flowering redbuds there, and a whole lot more.

“In bloom, or soon to bloom, are a number of natives, including silverbells, fothergilla, serviceberry, redbud, dogwood and pawpaw,” says Claudia Bradley, nursery coordinator for the UD Botanic Gardens.

She is particularly fond of fothergilla and tends to it not only in UD’s gardens but also in her own home garden. “I always look forward to seeing the fothergilla in flower,” says Bradley. “I like its bottlebrush white flowers now and, then, in fall, its awesome red color.”

Mt. Cuba Center is another great place to check out spring blooms, especially since it’s expanding its public hours. Starting April 19, you won’t need a reservation to visit on Fridays and Saturdays, from 10 a.m. to 4 p.m. (From May 3 to July 26, the gardens will stay open until 7 p.m. on Fridays.)  Guided tours will still be available by reservation on other days and times.

Chilly weather delayed some of the blooms at Mt. Cuba, just as it as at Winterthur and other area gardens. But now that it has warmed up, native spring ephemerals will soon emerge in Mt. Cuba’s woodlands, reports Jeanne Frett, a research horticulturist at the center. Look for flowering liverleaf, trout lily, bloodroot, rue-anemone, cut-leaf toothwort and Dutchman’s breeches.

Trees and shrubs also are starting to bloom at Mt. Cuba. If you’d like some April flowering shrubs in your own yard, Frett suggests American bladdernut and spicebush.

“Both of these are found locally in the woodlands and at Mt. Cuba Center,” says Frett. “They’re very appropriate choices for creating your own naturalistic gardens using locally native species.”

Spicebush is one of Delaware’s most common native shrubs. On the female plants, small clusters of yellow flowers appear now, and later develop into red fruit. American bladdernut isn’t the most beautiful April bloomer but it could be the most interesting.

“More of a curiosity than a specimen shrub, the American bladdernut has bell-shaped flowers that develop into three-lobed, inflated, brown papery capsules later in the season,” says Frett.

Article by Margo McDonough

Photo by Danielle Quigley

This article can also be viewed on UDaily.

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Spring means lush blooms and wide variety of beneficial bugs

March 20, 2013 under CANR News, Cooperative Extension

assassin bugSpring officially gets underway March 20, bringing blooms, birds and bugs. Lots of people get excited about the first redbud flower or returning tree swallow. Fewer get enthused about the first Eastern tent caterpillar or green lacewing that emerges in spring.

But a wide variety of flowering plants and songbirds wouldn’t exist without insects. “A number of different insects pollinate plants and many are an important protein source for birds,” notes Brian Kunkel, an entomologist with University of Delaware Cooperative Extension.

Bugs get a bad rap, says Kunkel. Some bugs – stink bugs, Japanese beetles and yes, Eastern tent caterpillars — deserve the nasty reputation because they damage or destroy ornamental plants, turf grass or agricultural crops.

But many insect species are innocuous – they do no harm. And plenty more, like immature green lacewings, are good guys.

While the adult form of this insect eats pollen and nectar, the young green lacewing gobbles up a slew of pests, including white flies, aphids, adult mealy bugs, and mealy bug eggs and larvae.

“Beneficial insects far outnumber the pests,” says Kunkel. “In fact, more than 97 percent of arthropods typically seen in the home landscape are either beneficial or innocuous.”

(Arthropods, as you may recall from your school days, include not only insects but also spiders, predatory mites and other creepy crawlies.)

Gardeners often grab a can of pesticide at the first sight of a bug, without even bothering to figure out whether the species is a pest.  Retired Hercules technologist and current Master Gardener Frank Ebright used to do that, too.

“I spent my career working with chemicals. I have nothing against them; chemicals have helped to save lives. But I don’t see a need for them in my garden,” says Ebright.

He tends to a two-acre yard in Cecil County, Md. Once he became a Master Gardener 19 years ago, Ebright’s use of chemical pesticides declined but he still spot-treated roses and other plants with pest problems. About five years ago he abandoned lawn chemicals for good and reports that his landscape has never looked better.

“Once I got rid of the chemicals, the beneficial insects starting coming to my yard and taking care of my pest problems,” he says.

Ebright will be leading a Master Gardener workshop about beneficial insects and integrated pest management on May 16. “I want gardeners to use chemical control as a last resort, not the first defense, and learn who their friends are.”

Sometimes it’s easy to identify your friends. Even though there are some 150 species of lady beetles in the U.S., these beneficials are a cinch to recognize. Their size and color may vary but all sport characteristic spots on their abdomens.

Other times, it’s tough to tell friend from foe. For example, the hover fly looks like a stinging hornet but the adult form is a first-rate pollinator that has been ranked just after the honeybee in its effectiveness. Plus, the larvae of many species of hover flies gorge on aphids, a pest that can wreak havoc on everything from roses to maple trees.

Ebright’s go-to book for identifying insects is Garden Insects of North America by Whitney Cranshaw. If he sees an unknown bug, he snaps a photo of it then compares it to images in Cranshaw’s book.

One of the first steps in integrated pest management is “making sure your plants are happy,” says Kunkel. Essentially, that comes down to “planting the right plant in the right place,” he notes.

If a plant requires moist soil, don’t put it in a dry spot. If it needs full sun, don’t think you can get away with partial shade. A stressed plant won’t be happy and can be more vulnerable to pest infestations, says Kunkel.

Companion plants are another element of integrated pest management. Nasturtium is commonly used as a companion plant, especially in vegetable gardens. Plant nasturtium near cabbage, tomatoes, cucumbers, broccoli, collards and kale. The aroma of this colorful annual will repel aphids, squash bugs and striped pumpkin beetles.

Presentations

• May 16, 6-8 p.m.: Find out how to use integrated pest management for an attractive yard and productive vegetable garden. New Castle County Cooperative Extension Office, Newark. $25. To request a registration form, call 302-831-COOP or download the form online.

• June 11, 6-8 p.m.: Join Brian Kunkel and other experts for a plant, pest and beneficial insect walk. New Castle County Cooperative Extension Office, Newark. Free. Register by email to cjmurphy@udel.edu.

Article by Margo McDonough

Photo courtesy of Brian Kunkel

This article can also be viewed on UDaily.

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UD’s Carroll returns to animal care roots at Delaware Humane Association

March 18, 2013 under CANR News

For Patrick Carroll, serving as the executive director of the Delaware Humane Association (DHA) is akin to coming full circle since his days as an undergraduate student majoring in animal science in the University of Delaware’s College of Agriculture and Natural Resources (CANR).

UD Alum Patrick Carroll serves as executive director of Delaware Humane AssociationCarroll started out as a pre-veterinary student before deciding that it just wasn’t for him and transitioned into a career more focused on 4-H and youth development. “I got a work study job with New Castle County 4-H and I kind of fell in love with 4-H and youth development and education, so I wanted to be a 4-H agent,” he said.

Carroll worked with Mark Manno, a Cooperative Extension specialist who he said “really helped me a lot — just gave me great experiences and mentored me, and I really owe my love for 4-H to him.” 

Carroll noted how ironic it is that even though he spent a lot of time working with non-profit organizations and youth development, he still ended up doing what he initially went to college for — working with animals.

Of CANR in general, Carroll said that even though he didn’t end up becoming a vet, he felt that the college helped prepare him by giving him a combination of hands-on experience — working with animals ranging from cows to chickens — and a great classroom atmosphere.

“The thing I love most about CANR is that UD is a big university, so you have the big university feel, but then on the other hand, being in CANR was a more tight-knit and closer community. So I really do think that it’s the best of both worlds. I really enjoyed the faculty and the other students. I had a great experience.”

After UD

After graduating from UD, Carroll went to Penn State where he received a master’s degree in extension education. After a four-year stint in Ohio working with 4-H, Carroll decided to move back East and after working at a few different jobs he was informed about an opening for a development director at the Delaware Humane Association.

“I came here as the development director first in 2006 and I was the development director for four years,” said Carroll. “Then our executive director left and I became the acting director and applied to be the executive director, and so I’ve been the executive director for three years.”

As the executive director, Carroll said that his biggest duties include strategy and fundraising, especially now as DHA prepares to build a new facility. After looking for a new home, DHA decided that the best thing to do was stay where they were and upgrade.

Having raised enough money to do so, the organization plans to break ground on the new facility in the spring, which according to Carroll will be the first new animal shelter built in northern Delaware in a long time.

delhumane6859There are other aspects to Carroll’s job, as well. “We have about 30 employees so there’s a lot of facets — there’s a veterinary facet, there’s a facility, there’s fundraising, there’s animal care,” said Carroll.

As a no kill shelter, something that Carroll said is becoming more common in Delaware, a state which has a strong no-kill movement, DHA can house up to 40 dogs and 100 cats.

Carroll said that they do not like to exceed this number for health reasons. “We’re not huge — some of the other shelters are much bigger than us or they have more animals than they can really house — but we try to be very responsible about housing a number that we can manage for health reasons. If we had more animals than we really should, sickness tends to increase.”

By being a no-kill organization, however, Carroll said that medical costs are high. “That’s a big cost of ours. We’re all about adoption, moving animals forward; we’re not a sanctuary, we don’t want anyone to stay here for a long period of time and the first goal of our mission is to be a temporary shelter.”

As for his favorite part about the job, Carroll said there are many, but he especially loves getting to see all of the new dogs when they first arrive.

“We get dogs in two main ways. We have owner surrenders, which is when someone has to give up a dog for various reasons and we take them in. And the other way is we transfer them from other shelters, mainly from the Kent County SPCA,” explained Carroll.

“We usually bring about 7-8 dogs at a time, and so one of my favorite things is when they get back and we open the van doors and you see all these faces of new dogs. It’s just nice to see them get into our doors and we take good care of them and find them a good home.”

Carroll also said that he enjoys connecting people with a pet and creating a life-long connection that way.

“It isn’t even really in my ‘official’ job description but my favorite part is really linking people to pets. I spend a lot of time with people who are looking for a cat or a dog or they’re referred to me or are my friends or family or people I went to high school with or college or whatever. It has major dividends because it connects people to the organization, and if they have a great experience and they love this dog or this cat they adopted they end up being a supporter and coming to our events and they get it because they’ve experienced it firsthand,” said Carroll.

For more information on DHA, visit the website.

Article by Adam Thomas

Photos by Danielle Quigley

This article can also be viewed on UDaily.

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Native Delaware: Early signs of spring are popping up in Delaware

February 28, 2013 under Cooperative Extension

Spring has sprung – or, if you’re an optimist like Dot Abbott it has.

“The skunk cabbage is popping up and will leaf out soon. Groundhogs and skunks are active again. And the spring peepers will be calling any day now,” says Abbott, a renewable resources agent for University of Delaware Cooperative Extension.

Spring doesn’t officially arrive until March 20, but early signs of the season are evident – that is, if you’ve been outside and observant enough to notice.

If you haven’t spent time outside recently, get out there now, and take the kids with you, says Abbott.

Native Delaware Spring has Sprung“Today’s kids spend twice as much time indoors as their parents did,” notes Abbott, a board member of the Delaware Association for Environmental Education. “It’s important to be exposed to nature education at school but it’s even better to experience nature with your parents or other caregivers.”

Although the earth appears to be in winter slumber, it’s teeming with life and activity. Abbott suggests these ways to get the kids outside to spot the earliest signs of spring:

Track animals

Do your kids love mud? Then they’ll love looking for animal tracks. Tracks are easiest to find in mud (as well as snow). Throughout the winter, you can see tracks from white-tailed deer, fox, squirrels, muskrats and beavers – all of which are active year-round.

Now, as spring draws near, you can spot groundhog and skunk tracks, too. Delaware has few true hibernators but in winter groundhogs, skunks and some other mammals exist in a semi-hibernation state known as torpor.

Lately, the groundhogs and skunks have been out and about, especially on days when temperatures climbed above the mid-40s. A groundhog track is pretty easy to identify. Look for imprints with four toes on the front paws and five toes on the back. They will be spaced 4-12 inches apart.

Skunk tracks show five toes on both the front and back foot. The front tracks usually show claw marks farther ahead of the toe marks than the rear prints do. These longer front claws help the skunk dig up roots and insects.

Search for stream critters

Macro invertebrates are a good indicator of a stream’s health. They’re also a great way to see if spring has sprung.

Head to a pond or stream and take a close look at the water, says Abbott. The nymphs of dragonflies, mayflies and stoneflies are active all winter, often living beneath the ice. They feed and grow throughout the cold weather months to emerge as adults in early spring. If you have a smart phone, pull up photos of the adult form of these insects and see if your kids can spot any new adults in the water.

Increase your chances of seeing this transformation by scooping up a bucketful of nymphs and creek water. Place the bucket in a sunny but cool room of your house. If you’re lucky, you may get to witness some nymphs metamorphosize into adults.

Take a night hike

As winter heads into spring, the woods become noisier at night. Owl breeding season is underway, and with it, a cacophony of calls.

“Great horned owls started defending their territory and looking for mates at the end of January. They were the first calls I heard. Next, came the barred and barn owls. The last few nights, I’ve also heard screech owls,” says Abbott.

“Yet in between the owl calls, it can become so quiet that you can hear every leaf that crackles underfoot,” she notes.

It’s this combination of silence punctuated by mysterious sounds that makes Abbott love a night hike this time of year. Owls are just the start. Abbott often hears red foxes. These voluble creatures produce a variety of barks, howls and whines. Some are sharp yaps; others are long, mournful howls.

Spot the first robin of spring (or not)

Have you seen a robin? It feels more like spring, doesn’t it?

We hate to burst your bubble but robins stick around all year. Formerly a migratory bird, large numbers of robins now over-winter in Delaware. Abbott first noticed this phenomenon in the early to mid-1990s, though she’s quick to note that she’s not an expert on the subject.

Robins have been able adapt to Delaware winters. They switch from their summer diet of insects to eating seed in wintertime. Because they are fairly large birds, they’re usually able to withstand cold snaps.

Not every bird adapts so easily. For example, a homeowner called Abbott last month to report dead goldfinches in her backyard. Goldfinches normally migrate south but a half-dozen or so stragglers hung out in this Dover backyard during the fall and into winter. Unfortunately, when bitter cold weather hit, they weren’t able to survive.

Now that spring is drawing near, the robins have changed up their behavior. The early pollinators like skunk cabbage have appeared, and with them, insects. Robins can now be found feeding on invertebrates in grassy and disturbed areas.

Abbott enjoys birding at Wyoming Mill Pond. Other good birding spots include the St. Jones River, Mispillon River, and the many millponds found in Kent and Sussex counties. Be on the look out for resident robins, as well as some of the earliest returning migrants, says Abbott.

Article by Margo McDonough

Photo by Danielle Quigley

This article can also be viewed on UDaily.

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Delawareans can takes steps to avoid winter plant damage

February 18, 2013 under CANR News, Cooperative Extension

native delawarePeople have been whining about the weather recently. We’ve dealt with high wind and rain from a nor’easter that walloped states to the north. We’ve had icy, sleety and snowy mornings — not enough to close schools but enough to be an annoyance. We’ve seen Old Man Winter switch on and off, from artic conditions to spells of warmth.

If plants could whine, they would be whining right along with us. Winter can be a tough time on plants, especially young plants and those that were transplanted this year. Branches can break from ice, snow and wind; leaves can get dried and burnt from salt damage, roots pushed out of the soil from frost heave; and lack of moisture can cause plant tissues to suffer desiccation.

Unfortunately, we’re not out of the woods yet – spring doesn’t officially arrive until March 20. In fact, the waning days of winter can be the trickiest for plants, when it’s common for temperatures to fluctuate wildly from day to day.

You can’t do much to prevent some types of winter plant damage – like salt burn on shrubs by the street. Most road maintenance crews persist in using road salt, not eco-friendly alternatives such as sand or calcium chloride.

But other issues are avoidable, says Carrie Murphy, a University of Delaware horticulture agent. And even when damage occurs, it often can be fixed.

For example, in the case of salt burn, the effects can be minimized by flushing the plants in early spring. Apply two inches of water over a three-hour period and repeat three days later. This will leach much of the salt from the soil.

Avoiding winter damage starts by choosing the right plants for the right place. Think about overall conditions – how much sun, rain, wind and cold your plants will experience. Don’t forget to factor in any specific microclimates within the yard, such as wet spots and windy areas.

“I have chosen plants for my garden that are fully hardy,” says UD Cooperative Extension horticulture specialist Sue Barton. As a result, Barton’s plants don’t need a lot of help in winter. She waters all of her plants thoroughly in the fall, especially if it’s been dry. She also rakes leaves into her landscape beds for a layer of protective mulch. Some years she loosely places evergreen boughs over top tender plants.

Bob Lyons, director of UD’s Longwood Graduate Program in Public Horticulture, also is a big fan of mulch and makes sure that his new plantings are covered with a blanket of it before winter winds blow.

If you didn’t mulch in the fall and are worried about young plants, then get out there now – it’s not too late, notes Murphy. Mulching reduces water loss and it also helps to prevent frost heave.

When soil freezes and thaws in rapid succession, shallow-rooted plants can be pushed out of the ground. Mulching decreases frost heave by reducing the amount of alternate freezing and thawing that occurs.

Dick Pelly has been staffing the Master Gardeners’ Garden Line since joining the group in 1999. In winter, he often gets asked what to do about branches that have broken off because of ice, wind or snow.

Pelly recommends removing the broken limbs as soon as conditions are safe and weather permits. Doing so helps the tree or shrub heal faster. Damaged trees are more prone to disease.

Another question that frequently comes up is whether or not to wrap trees in burlap. Although Pelly doesn’t use burlap in his own yard, he says it can be a good way to shield smaller trees, fruit trees and evergreens from cold temperatures and wind. In coastal areas, wrapping a tree can help reduce the damaging effects of salt spray.

Highway crews may use salt, but that doesn’t mean you should use it on your sidewalks and driveway, notes Pelly. Eco-friendly and effective alternatives include sand, ashes and kitty litter.

Learn more

Those with questions about winter plant damage can call the Garden Line in New Castle County at 831-8862. In Kent, call 730-4000, and in Sussex, call 856-2585, ext. 535. A Master Gardener will return your call within 24 hours.

Article by Margo McDonough

Photo by Danielle Quigley

This article can also be viewed on UDaily.

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