Thursday September 26th was the Planting for Beneficial Habitat Twilight meeting. Attendees learned how habitat for pollinators and other beneficial insects show good stewardship of the land. Dr. Dunn explained several methods of establishment, the benefits of hosting pollinators and other beneficial insects, and their impact as biological control.
Dr. Amara Dunn speaks with Cooperative Extension visitors.
Evergreen plantings on the NYSIPM plot, Cornell Agritech Fruit and Vegetable Research Farm
Does adding beneficial habitat reduce pest pressure on Christmas tree plots? We hope to find out.
Despite stormy skies, the Twilight Event was a success
Brian Eshenaur and Amara Dunn address attendees of the Twilight Meeting
Keuka College students in Dr. Bill Brown’s Animal Diversity class compare pairs of insect samples. Dr. Betsy Lamb invited them to hypothesize differences in collected insects at varying locations within the plots, and at different times of the year.
Thank you to all who helped make these teaching events possible!
July 16, 2019
by Debra E. Marvin Comments Off on Senior Worm Wrangler Safeguards North Country Crops, wins Excellence in IPM Award
Press Release by Mariah Courtney Mottley. Media contact: Jaime Cummings
Elson Shields, a Cornell entomology professor, received an Excellence in Integrated Pest Management (IPM) Award from the New York State Integrated Pest Management Program (NYSIPM) at Cornell University’s Aurora Farm Field Day on the Musgrave Research Farm. NYSIPM develops sustainable ways to manage pests and helps people to use methods that minimize environmental, health and economic risks. The award honors individuals who encourage the adoption of IPM in their businesses, schools, communities, and farms, and who develop new tools and tactics for sharing these practices.
Elson Shields, right, and Charles Bornt, left, Extension Vegetable Specialist with the Cornell Cooperative Extension Eastern New York Commercial Horticulture team. Elson is explaining the process of EPN application for a biocontrol project to suppress wireworms in the field. Photo: T. Rusinek.
The alfalfa snout beetle, an invasive pest, is a perennial threat to north country alfalfa. In the absence of any registered insecticides for this pest, growers are forced to only use cultural and biological controls. Shields found success protecting alfalfa from the snout beetle with the use of native entomopathogenic nematodes (EPNs). Nematodes are tiny worms that parasitize and eventually kill the beetle larvae, and stay in the soil to infect future generations of the pest. Shields pioneered the use of nematodes that persist in the soil, and has been able to control snout beetles as long as six years after a single application of EPNs.
Shields has taught growers to rear the EPNs and to apply them to their own crops. Dr. Shields is also exploring ways to use these beneficial nematodes to protect specialty crops. He works with agribusiness consultants in the private sector and other researchers in the public sector. His effective strategy with persistent EPNs has been featured in trade journals such as Growing Produce, Good Fruit Grower and Dairy Herd Management. He received an Entomological Foundation Award for Excellence in IPM in 2013, and his promotion of persistent EPNs is being widely adopted.
Dr. Elson Shields speaks with farmers about his Northern New York Agricultural Development Program alfalfa snout beetle research at a field day in Belleville, NY. Photo courtesy of the Northern New York Agricultural Development Program.
By studying the persistence of nematodes applied to alfalfa through a crop rotation that included several years of corn, Shields observed that EPNs were also helping to control the corn rootworm, on their vacation time from alfalfa. Through collaborations with horticultural researchers, Shields is working on applying persistent EPNs as biological controls in crops such as strawberry, cranberry, sweet potato and turf. He is also studying the potential for using these techniques on greenhouse ornamentals.
Margaret Smith, Professor of Plant Breeding and Genetics at Cornell University, commends Shields’ willingness to question standard pest management orthodoxy and to follow research results wherever they might lead. She continues, “Elson’s snout beetle IPM effort is an exemplar of an outstanding public sector pest management program. Shields has done pioneering, innovating, and broadly effective research on an array of crops. His record of success will be hard to match.”
Laura McDermott, Regional Extension Specialist, says: “Dr. Shields’ work with native entomopathogenic nematodes is some of the most exciting applied research I’ve been involved with in my 30-year extension career. This integration of a biological control method as a way to manage difficult soil-borne insect pests is inexpensive, effective, and truly sustainable. Elson ALWAYS has the growers in the forefront of his mind. His efforts to teach farmers how to raise and apply these nematodes is testimony to his understanding of their abilities.”
“New York Agriculture, including the dairy, vegetable and fruit industries, have benefitted greatly from Elson’s vision and willingness to go above and beyond what is expected,” says Teresa Rusinek, Extension Associate for Vegetable Production in Cornell Cooperative Extension of Ulster County. She continues, “I’ve observed at our field meetings and farm demo work that growers easily understand the system and readily adopt the biocontrol strategies Elson’s developed.”
April 11, 2019
by Debra E. Marvin Comments Off on Blogs as Varied as our Program…
The THINK IPM Blog tries to cover the breadth of our program but if you know anything about us, it’s that pest management covers much more than cockroaches and dandelions. Here’s the rest of our blogs:
The goal of this blog is to inform New Yorkers who are trying to control pests – on farms, in backyards, in businesses, or in homes – about the role that biological control plays (or could play) in successful integrated pest management. Additional information and resources can be found here.
The information is posted by Amara Dunn, Biocontrol Specialist with the New York State Integrated Pest Management Program. New content will be posted approximately once a month. Click the “Subscribe” button on the right to make sure you don’t miss anything! Content may include information on the effective use of biocontrol, responses to questions from stakeholders, and updates on new or ongoing biocontrol projects of interest to New Yorkers.
If you have questions about biocontrol, you can contact Amara by email (firstname.lastname@example.org), or you can call her office (315-787-2206).
This is a seasonal scouting report providing information on presence, identification, and management guidelines for significant field crop pests in New York. This report provides timely information to help users learn about, and better anticipate, current and emerging problems and improve their integrated pest management efforts.
The IPM Ornamentals program works with university researchers, extension educators, crop consultants and growers to identify pest management issues and find answers. We deliver the IPM solutions to growers through hands-on workshops, demonstrations, and publications.
The purpose of this site is to provide weekly reports from the NY sweet corn pheromone trap network. The trap network is a collaboration between the NYS IPM Program, local Cornell Cooperative Extension programs, farmers, and crop consultants. We also provide scouting and threshold information for fresh market sweet corn and links to resources on the major sweet corn insect and disease pests. The information on these pages is maintained by Marion Zuefle, Vegetable IPM Extension Area Educator with the New York State Integrated Pest Management Program, with help from Craig Cramer, Communications Specialist with the Department of Horticulture at Cornell University.
To contact Marion: email@example.com
Marion Zuefle, Vegetable IPM Extension Area Educator
IPM House, 607 W. North St., Cornell AgriTech, Geneva, NY 14456, (315) 787-2379, Email: firstname.lastname@example.org
You’re NEWA is managed by Dan Olmstead, NEWA Coordinator, NYS IPM Program.
The Network for Environment and Weather Applications (NEWA) delivers weather data from weather stations primarily located on farms through the Internet at newa.cornell.edu and automatically calculates and displays weather data summaries, crop production tools, and integrated pest management (IPM) forecasts. NEWA tools promote precision IPM and crop production practices.
Dan Olmstead, NEWA Coordinator, housed at IPM House, Cornell AgriTech, Geneva, NY 14456, 315-787-2207, Email: email@example.com
March 28, 2019
by Joellen Lampman Comments Off on Happy National Weed Appreciation Day!
It really boils down to this: that all life is interrelated. We are all caught in an inescapable network of mutuality, tied into a single garment of destiny. Whatever affects one destiny, affects all indirectly. – Dr. Martin Luther King, Jr.
Ahhh, the weed. Despised by many, almost to the point of violence. Once, while waiting for my older child to get out of preschool, I sat in the lawn and blew dandelion heads to the delight of my infant. I’ve never forgotten the sudden manifestation of a red-faced man screaming at me about terrorizing the neighborhood. (I like to think my son was unaffected.)
The first step in IPM is determining if you have a problem. All those years ago, a large, angry man was a problem, but I contend to this day that the dandelions were not. An unknown author penned that weeds are people’s idea, not nature’s. And many through the years have found inspiration from weeds. While researching this post, I had the option of strictly sticking to quotes about weeds (don’t worry, I didn’t), but I will add a few. There are quotes about their survivability:
You can’t help but admire a plant that has adapted to lawn mowers.
A weed is a plant that has mastered every survival skill except for learning how to grow in rows. – Doug Larson
A fresh and vigorous weed, always renewed and renewing, it will cut its wondrous way through rubbish and rubble. – William Jay Smith
Quotes about weeding:
Plant and your spouse plants with you; weed and you weed alone. – Jean-Jacques Rousseau
And many waxed poetic about their hidden value:
What is a weed? A plant whose virtues have never been discovered. – Ralph Waldo Emerson
When life is not coming up roses, Look to the weeds and find the beauty hidden within them. – F. Young
But beyond their value as a philosophical aid, can weeds be beneficial?
In fact, what weeds you find can tell you something about the soil. Is it wet or dry? Lean or fertile? Compacted? Acidic, alkaline, or neutral? Check out the short overview from the University of Vermont, What Weeds Can Tell You. Then act accordingly.
Often, weeds we find troublesome are plants we once valued. Dandelions, garlic mustard, plantain, and burdock are examples of plants brought over and cultivated by settlers to North America for food and medicine. And there are efforts to regain that value. One doesn’t need to spend too much time on the internet to find many resources on edible weeds. Take a look at this short video, Edible Weeds | From the Ground Up, developed by the University of Wyoming Extension (which includes some precautions you should take if you want to try eating your problems away). The Northeast Sustainable Agriculture Research and Education recently funded a project looking at bringing edible weeds from the farm to the market.
These trichogramma wasp parasitized European corn borer eggs aren’t going to hatch.
There is research looking at the ecosystem services provided by weeds in agricultural settings. In their project, Integrating Insect, Resistance, and Floral Resource Management in Weed Control Decision-Making, Cornell researchers make the argument that while weeds can compete with crops, they can also benefit the entire system. They use milkweed along a field of corn as a case study. There are aphids that feed on the milkweed and produce honeydew, which benefits beneficial insects such as wasps that lay their eggs in the eggs of insect pests such as European corn borer. And that’s before they discuss the benefit to monarch butterflies.
Early flowering weeds, such as this purple deadnettle, provide an early spring food source for pollinators.
And speaking of butterflies… and bees… and other pollinators, in the write-up of a study looking at the capacity of untreated home lawns to provide pollination opportunities, they reclassified weeds as “spontaneous lawn flowers”. So much friendlier! By the way, they found 63 plant species in those lawns. In a parallel study looking at mowing and pollinators, they found that lazy lawn mowing led to more spontaneous lawn flowers leading to more pollinators. So now I have also given you an excuse to mow less. You’re welcome.
Some of our beneficial insect habitat plots looked really beautiful this fall! Others are still works in progress.
Today’s post is from our Biocontrol Specialist, Amara Dunn
Have seed and plant catalogs started arriving in your mailbox, yet? This is the time of year I start thinking wistfully about the arrival of spring. If your spring daydreams include planting habitat for pollinators and other beneficial insects, keep reading for the latest on NYS IPM’s beneficial insect habitat establishment project!
Back in October I described the purpose and design of this project. So what have we learned after the first year? First, here’s a reminder of the different treatments we were comparing. Each treatment involved either direct seeding or transplanting habitat plants, in the spring or the fall, utilizing a different method for weed control.
Replace dead plants
Till, transplant, mulch
Replace dead plants
Till, direct seed
Till, plant buckwheat
Mow 1x, till, plant buckwheat
Mow 1x, transplant
E – control
Till, lay plastic
Remove plastic, direct seed
Herbicide 2x, till 1x
Till 1x, direct seed
And here’s how much time and money we spent on each method during our first year. Each treatment was applied to a total area of 460 ft2 (0.01 A).
A – Spring transplant
B – Spring transplant and mulch
C – Spring seeding
D – Buckwheat & fall seeding
E – Control
F – Solarize & fall seeding
G – Herbicide/tillage & fall seeding
What did we get for the time and money we invested? Well, the only two treatments that looked anything like habitat for beneficial insects by October were the ones we transplanted in the spring (A and B). And of the two, treatment B looked a lot better because of the mulch we spread around the plants after transplanting to help suppress weeds. Even so, we still hand weeded this treatment (and treatment A) twice during the year. But we got much better weed control in treatment B.
Four and a half months after transplanting, the beneficial habitat plants in treatments A (left) and B (right) were mostly growing well. But there was a big difference in weed control, in spite of similar amounts of time spent weeding each treatment
Direct-seeding in the spring resulted in a few blackeyed Susans by October (and a few partridge peas slightly earlier in the year), but did not look very impressive and had a lot of weeds.
After direct-seeding in the spring and mowing four times during the summer and fall, there were a few blackeyed Susans blooming in treatment C plots.
Of the three methods we used to manage weeds during the season, alternating herbicide applications and tillage resulted in the cleanest-looking plot by October.
A few weeds were present a week after the last time the herbicide/tillage treatment (G) was rototilled. We broadcast, raked, and pressed beneficial habitat seed into these plots.
Solarizing the soil was low-maintenance once the plastic was laid in the spring. We did learn that solarization is not a good strategy if you’re trying to control purselane. It grew just fine under our clear plastic, while most other weeds didn’t. In some places, it probably reduced the efficacy of solarization because it pushed the plastic away from the soil and allowed other weeds to germinate and grow.
In some solarized plots, purslane grew happily under the plastic. Purslane was not a common weed anywhere else in the field during the season.
The two crops of buckwheat we grew in treatment D not only suppressed weeds, but also attracted lots of pollinators and natural enemies to its blossoms before we mowed the crop down to keep it from going to seed.
The buckwheat established quickly and crowded out many weeds. We mowed the first crop in July and re-planted. We had to mow the second crop about 3 weeks before we transplanted (not ideal).
In summary, if one of your 2019 resolutions is to plant habitat for beneficial insects, I have two pieces of advice:
Spend 2019 controlling weeds. Even where we transplanted, weed pressure was a challenge, and investing in weed control before you plant is worth it!
If you have sufficient funds and need or want to establish habitat quickly, transplants are the way to go. Mulch will help you with your battle against weeds.
In 2019, we’re planning to keep monitoring these plots. Check back to see how the fall-planted and direct-seeded treatments look in their second year. Most of these methods are expected to take several years to reach their full potential. We will also start counting the insects (and insect-like creatures, like spiders) we find in these plots. During 2018, we already started seeing some beneficial insects showing up in these plots, so I’m looking forward to counting them once spring finally gets here!
Here are just a few of the beneficial insects we spotted in these plots during 2018. Soldier beetles, many hover flies, and lacewing larvae are all natural enemies of pests. We also saw lots of lady beetles and several other types of bees.
Thanks to Betsy Lamb and Brian Eshenaur who are working on this project with me, and to Bryan Brown for doing a weed assessment for us. You can read more about this project and see more pictures from 2018 at Biocontrol Bytes. Subscribe to make sure you don’t miss future updates!
We decided on a new look for our IPM Year in Review—our first-ever calendar. Who doesn’t put calendars to good use? I’ve already noted a couple of dentist appointments in mine.
And for you, dear reader, we offer our calendar sampler—four months, four topics, four new things to learn.
It’s February and shivery cold—and time to pay careful attention to the nooks and crannies so inviting to the critters that call your home theirs. Do you hear varmints scurrying in the basement, the walls, the ceiling? Mice and kin (OK, rats) have taken up lodgings and are way overdue on the rent.
Block their access. Start with a look in the basement. For mice, the entryway need be no larger than a dime; for rats, a quarter. Take it from us: if their heads can fit through, their fat little tummies can squeeze through too. Found a hole? Found several? Get some sealant and fill ’em up. https://conservesenecacounty.com/wp-content/uploads/2015/04/mouse.jpg
Ah, March—when winter marches into spring. School kids are antsy to get outside. And us? We’ve got ticks on our mind. Here’s your blacklegged tick, up close and personal. Soon these ticks will be out and about; the health hazards can hardly be overstated.
So practice the drill—how to ID them, dress for the occasion, do tick checks. Planning a hike? Wear light-colored duds (the better to see you with, my dear), pull your socks over your cuffs—and as soon as you’re home, do tick checks. Got pets? Check them too.
Btw, though their common name is “deer tick,” many scientists prefer “blacklegged tick.” We’re speculating here—but could that be because otherwise people will get the mistaken notion they can catch Lyme from deer, which they cannot? Yes, deer are among the movers and shakers in the world of Lyme. But by the time they’ve donated their blood to the cause, mama tick will have dropped off and called it a day.
Regardless: these ticks have a lineage that goes way back. In fact, a fossilized tick was found in a chunk of amber where it dined on mammalian blood some 20 million years ago. It carried babesia—a disease that’s still in action today.
It’s May now; summer is nearly here and the weeds are growing like—well, like weeds. Unperturbed by spray, horseweed and waterhemp are gaining ground, dramatically reducing crop yields. Regaining control over these herbicide-resistant weeds is a major issue for New York’s farmers.
Here’s one approach. With nearly 20 rubbery fingers on each hand and 20-plus hands, this cultivator earns its keep by dislodging, uprooting, and burying weeds while they’re still small. The boxy white contraption with two dark “eyes” and mounted at head height with a cable running toward the cab? That’s a camera, designed to move the cultivator left or right. It’s job? Keeping the cultivator aligned with the crop.
Bed bugs are back, the scourge of small and big towns alike. No, they don’t spread disease. Yes, on some of us they leave itchy red welts—while others have no symptoms at all. But you don’t need to throw all your belongings away, we promise. IPM now offers to ultimate in How To guides: How to Get Bed Bugs Out of Your Belongings.
Your hair dryer and vacuum cleaner will be your steadfast companions in your battle to regain control over your mattresses, shoes, clothes, and electronics. The hair dryer’s gentle heat will flush the little buggers out of hiding; the vacuum cleaner sucks them up. The guide also provides instructions on how to quarantine your belongings long enough to starve them into oblivion. Bed bugs, even during the holidays, are manageable.
While visiting our blog, you have also been checking out older posts. Our second most popular post viewed in 2018 was a 2014 post, Identifying Your Pest – with Poop?. There are a lot of budding scatologists out there.
Other IPM Blogs – Besides ThinkIPM, we have more dedicated blogs, and you don’t need to be a specialist to subscribe to them. Here are some of the more popular posts:
Our new Spotted Lanternfly video, Have YOU Spotted Lanternfly Egg Masses was just posted, but it has already reached the number two spot. This invasive insect is getting a lot of attention and we need your help to keep track of it in New York.
Today, Biocontrol Specialist Amara Dunn addresses a common question.
So you want to grow habitat for pollinators…what’s the best method?
The short answer is that there probably isn’t a single best method. But there may be a best method for you. I know it’s not a very satisfying answer, but let me explain.
Remember that an area that provides food and shelter for pollinators (and, incidentally, natural enemies of pests, too!) contains a mix of plant species that bloom throughout the growing season and variation in plant shapes, sizes, and types. Leaving debris from last year’s growth is also helpful. While there are many good reasons to use native plants, non-native plants are ok too, as long as they aren’t invasive. There are plenty of resources out there for choosing plant species for pollinators, like this list of regionally-appropriate plants, and this database that is searchable by zip code. Other databases are searchable by specific plant characteristics.
Once you’ve selected the species you want to use in your pollinator habitat area, you have two main tasks: managing weeds, and establishing the plants. And here’s where the options can start to feel daunting. How will you manage weeds – hand pulling, herbicides, tillage, a cover crop, mulch? This is a critical step in creating habitat for pollinators, and one that is too-often overlooked. Experts recommend that you plan to spend at least one full growing season focused only on this task.
The weed management strategy you choose may also depend on how you would like to establish the plants you have chosen. The two main options are planting seeds directly into the ground, or transplanting small seedlings (or “plugs”). But should you do this in the spring or the fall? In the Northeast United States, experts recommend sowing seeds in the fall. Fall is also a good time to transplant perennials. And it has the advantage of allowing you to spend the entire growing season controlling weeds. But depending on your project timeline, it may not feel like the best option for you.
To help you make informed decisions about the best way to establish habitat for pollinators, I am working with Dr. Betsy Lamb and Brian Eshenaur to measure the costs, labor, and effectiveness of different methods for establishing pollinator habitat. The work is being done in demonstration plots located at Cornell AgriTech at the New York State Agricultural Experiment Station in Geneva, NY. We are comparing six different methods, summarized below.
As you can see, we’ve included a mixture of weed management techniques (cover crop, mulch, mowing, herbicide and tillage, soil solarization) and different plant establishment techniques (seeds vs. plants, spring vs. fall timing). And we’re keeping track of the time and money spent on each method.
You can read more about the details of the methods we’re using and see pictures of our spring planting and seeding on my blog, Biocontrol Bytes. Over the next month or so, we will do our fall seeding. Stay tuned as we finish up the season and calculate inputs of time and money and analyze data collected by NYS IPM’s Bryan Brown on weed management success.
Amara Dunn is the Biocontrol Specialist for the New York State Integrated Pest Management Program, Cornell University, New York State Agricultural Experiment Station, 630 W. North Street, Geneva, NY 14456. Follow her blog, BIOCONTROL BYTE
September 7, 2018
by Mary M. Woodsen Comments Off on The eat-local movement: IPM works for you…
Eat local! For towns and cities small and large, the eat-local movement is a boon for farmers and consumers alike. You (the consumer) get your veggies fresh, while you (the farmer) can build a base of local buyers who know your products.
Tomatoes, cukes, and sweet peppers. Lettuce and spinach, arugula and swiss chard. For farmers who grow them, the season is always too short—and winter too long. Now some have adopted the high-tunnel approach to get ahead of the game.
These tomatoes are just getting traction. Next up….
Ripe local tomatoes … ready for you.
And what is a high tunnel, exactly? Uh … well, I’ll grant you there’s no “exactly” to many a thing—high tunnels included. But whatever the specifics, they have much in common. For starters, this type of greenhouse is usually a plastic covered structure with less environmental control, relying on passive ventilation for cooling.
But like everything in agriculture, high-tunnel crops have can have insect pests. Plant pathogens. Weeds.
How do we help? Let us count the ways. Crafting a solid IPM plan is a great place to start. The plan lays out practices that help prevent pests, be they diseases, weeds or insects. Choosing pest-resistant varieties helps lessens the need for pesticides. Ditto with becoming familiar with a range of biocontrols while you’re still ahead of the game. Then there’s getting the ID’s right: learning the appearance or symptoms of pests that just happen to be checking out the premises. Once you’ve nailed the IDs, it’s time to scout early and often.
Diversifying and rotating crops plays a big role too. So does getting watering, ventilation, and fertilizing down to an art—a must-do, since too much or too little of any of these can encourage those pests you are trying to control.
Next time you are buying local – ask your local farmer how they include IPM in their production. You’ll find they are all doing their best to grow beautiful, delicious veggies for you.
August 3, 2018
by Joellen Lampman Comments Off on Stop the Bite – Mosquito IPM
Seasonal items will fill with water and provide mosquito breeding habitat.
So, with all the rain, it’s time for a quick yard inspection. When I conducted mine, it was too easy to find collected rainwater. The wheelbarrow was left right-side up. A snow rake tucked behind the shed was filled with water. An upside down garbage can collected water in its grooves. For these items, I simply flipped them over and the mosquito problem was solved. This simplest of IPM method is highlighted in the video, Managing Mosquito Breeding Sites, by Dr. Matt Frye.
These mosquito larvae are thriving in a driveway puddle – at least until the puddle evaporates.
Keeping an eye on the weather can also help with management decisions. Take, for example, the puddles formed in my driveway. Getting into inspection position (head down, butt up), it was easy to see the wriggling larvae. I checked the weather, saw it was going to be dry through the next day, and made the decision to let the puddle dry up. When I checked the driveway the next day, the puddle, and the mosquito larvae, were gone.
Alas, the rainy forecast will cause it to refill with water, again providing a good location for female mosquitoes to lay her eggs. Next step? Fill in the low spots in the driveway with sand to prevent standing water.
This dried puddle is no longer able to support mosquito larvae.
Diligence in monitoring is the key to preventing mosquitoes from breeding on your property. Monitor regularly and take steps to prevent standing water from becoming mosquito breeding sites.