Eastern New York Commercial Horticulture Enrollment

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  • Helpful Diagnostic Tool:
      What's wrong with my crop?

Pests

Numerous pests affect commercial vegetable production in New York. All stages of plant growth may be susceptible to insects or disease causing pathogens which may result in poor seedling emergence, reduced yields and quality issues. Similarly, weeds compete with vegetable crops for light, nutrients and water often reducing yields. Weeds can also act as a reservoir for insects and diseases. Furthermore, weed seeds and other parts can be a contaminant of certain vegetable crops.

Eastern New York Commercial Horticulture Program Specialists conduct research and educational programs on many important insects, diseases and weeds in New York. While not an exhaustive list, current information on many important vegetable pests can be found below. The most recent pest content is listed below but you can find more pests under the pest categories of Diseases, Insects, and Weeds.

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  • PESTS CATEGORIES


    Most Recent Pests Content

    Pesticide Applicator License Pre-Exam Training Slides

    Anna Wallis, Tree Fruit and Grape Specialist
    Eastern New York Commercial Horticulture

    Last Modified: March 22, 2017

    Slides from the Pesticide Applicator License Pre-Exam Training, held March 2017 in Plattsburgh.

    2017 NENY & VT Winter Grape School Presentations

    Anna Wallis, Tree Fruit and Grape Specialist
    Eastern New York Commercial Horticulture

    Last Modified: March 16, 2017

    Presentations from the the Northeastern NY & VT Winter Grape School held March 9, 2017 in Lake George.


    Bird Damage in Tree Fruits

    Anne Mills, Field Technician
    Eastern New York Commercial Horticulture

    Last Modified: February 27, 2017

    Frugivorous birds impose significant costs on tree fruit growers through direct consumption of fruit and
    grower efforts to manage birds.We documented factors that influenced tree fruit bird damage from 2012
    through 2014 with a coordinated field study in Michigan, New York, and Washington. For sweet cherries,
    percent bird damage was higher in 2012 compared to 2013 and 2014, in Michigan and New York
    compared toWashington, and in blocks with more edges adjacent to non-sweet cherry land-cover types.
    These patterns appeared to be associated with fruit abundance patterns; 2012 was a particularly lowyield
    year for tree fruits in Michigan and New York and percent bird damage was high. In addition,
    percent bird damage to sweet and tart cherries in Michigan was higher in landscapes with low to
    moderate forest cover compared to higher forest cover landscapes. 'Honeycrisp' apple blocks under
    utility wires were marginally more likely to have greater bird damage compared to blocks without wires.
    We recommend growers prepare bird management plans that consider the spatial distribution of fruit
    and non-fruit areas of the farm. Growers should generally expect to invest more in bird management in
    low-yield years, in blocks isolated from other blocks of the same crop, and in blocks where trees can
    provide entry to the crop for frugivorous birds.


    More Pests Content

    Bird Damage Q&A
    Installing and Monitoring American Kestrel Nest Boxes in Orchards
    2017 Winter Tree Fruit School Presentations
    2016 ENY Sweet Corn Trap Summary Presentation
    White Rot Fact Sheet
    2016 Spider Mites and Dry Hot Weather
    2016 Fire Blight Management Workshop
    Insecticides to Control Spotted Wing Drosophila
    White Rot Update
    Fire Blight Sampling
    2016 Grape Disease Control
    2016 SWD Exclusion Study- SARE Project Report
    2015 Herbicides for Weed Control in Snap and Dry Beans
    2016 Berry School - Disease Diagnosis Talk
    2016 Berry School - Disease Management Talk
    Fruit School 2016 - Grapevine Leaf roller & Grape Mealy bugs
    Fruit School 2016 -GRAPE BERRY MOTH PRESENTATION
    » View Complete List of Pests Content
    more crops
    Apples

    Apples

    Apricots

    Apricots

    Asparagus

    Asparagus

    Beets

    Beets

    Blueberries

    Blueberries

    Broccoli

    Broccoli

    Brussels Sprouts

    Brussels Sprouts

    Cabbage

    Cabbage

    Carrots

    Carrots

    Cauliflower

    Cauliflower

    Cherries

    Cherries

    Cucumbers

    Cucumbers

    Dry Beans

    Dry Beans

    Eggplant

    Eggplant

    Ethnic Vegetables

    Ethnic Vegetables

    Garlic

    Garlic

    Grapes

    Grapes

    Horseradish

    Horseradish

    Kohlrabi

    Kohlrabi

    Leeks

    Leeks

    Lettuce / Leafy Greens

    Lettuce / Leafy Greens

    Melons

    Melons

    Nectarines

    Nectarines

    Onions

    Onions

    Parsnips

    Parsnips

    Peaches

    Peaches

    Pears

    Pears

    Peas

    Peas

    Peppers

    Peppers

    Plums

    Plums

    Potatoes

    Potatoes

    Pumpkins / Gourds

    Pumpkins / Gourds

    Radishes

    Radishes

    Raspberries / Blackberries

    Raspberries / Blackberries

    Rhubarb

    Rhubarb

    Rutabaga

    Rutabaga

    Snap Beans

    Snap Beans

    Squash - Summer

    Squash - Summer

    Squash- Winter

    Squash- Winter

    Strawberries

    Strawberries

    Sweet Corn

    Sweet Corn

    Sweet Potatoes

    Sweet Potatoes

    Tomatoes

    Tomatoes

    Turnips

    Turnips

    more crops
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    Upcoming Events

    Effective Orchard Spraying & Navigating NEWA Workshop- Champlain Valley

    March 28, 2017
    8:00am- 4:00pm
    Chazy, NY

    Effective Orchard Spraying - Morning
    Understand how to improve your timeliness and therefore apply sprays when needed and not be forever chasing the calendar. Correct application at the correct time will allow you to make better use of your time and materials over the season.

    Navigating NEWA - Afternoon 
    Learn the ins-and-outs of the NEWA system (Network for Environment and Weather Applications). Learn how to efficiently navigate the NEWA interface, including how to get weather data, access station specific pages, and effectively utilize models for insects, diseases, crop thinning, and irrigation.

    Bring your Laptop or Smart Device!!

    ***PRE-REGISTRATION IS REQUIRED! ***


    view details

    Hudson Valley Orchard Scouting & NEWA Orchard Models Workshop

    March 30, 2017
    10:00am-3:00pm
    Highland, NY

    Interested in learning how utilize the NEWA orchard models and learn pest scouting techniques to improve your orchard pest management?  NEWA Coordinator Dan Olmstead, HVRL entomologist Peter Jentsch, HVRL plant pathologist Dr. Srdjan Acimovic, and ENYCHP tree fruit specialist Dan Donahue will be presenting a workshop at the Cornell Hudson Valley Research Lab on March 30th from 10 am to 3:00 pm. 
    view details

    Pruning Demonstration Day

    March 30, 2017
    2pm-5pm
    Red Hook, NY

    You are invited to join Laura McDermott and Jim O'Connell, Berry Educators for Cornell Cooperative Extension of Eastern NY, for a pruning demonstration on mature blueberries on Thursday, March 30th.

    This workshop is free, but please preregister with Jim O’Connell no later than March 28th, 2017 by email (jmo98@cornell.edu) or phone (845-943-9814) so we know how many people to expect. 

    view details
    view calendar of events

    Announcements

    White Rot Update

    NOW AVAILABLE: White Rot Fact Sheet: Click Here

    Earlier in June I sent a garlic sample to the diagnostic lab hoping that I was wrong. The sample was covered in small black sclerotia, the size of poppy seeds, and white fungal hyphae crept up the stem. The results, unfortunately, matched the field diagnosis: White Rot. Within a couple days additional calls came from up and down the Hudson Valley as well as one in Western NY with similar suspicions. These samples have also gone to the lab for verification, but it looks like the latest pest to move back into the state is this nasty fungus. 

    White Rot, Sclerotinia cepivorum, decimated the onion industry in New York in the 1930's before being eradicated through careful management. More recently, in 2003, it infected 10,000 acres of garlic in California, leading to the abandonment of some garlic fields and adoption of strict containment rules. White rot has been confirmed in Northeastern states over the last decade as well, with New York being one of the last to discover the disease.

    The primary reason that White Rot is such a concern is because the sclerotia, or reproductive structures, can remain dormant in the soil for up to 40 years, attacking any allium crop planted into the soil under favorable conditions. This spring was ideal for infection due to the period of cool, moist weather we had. Optimal temperature for infection is 60-65 degrees F, but infection can occur anywhere from 50-75 degrees F.
    Once garlic has white rot, it generally declines rapidly. Leaves will yellow and the plant will wilt, not unlike a severe fusarium infection. However, unlike with fusarium, white rot infected bulbs are covered in black sclerotia and white fungus. To add to the confusion, another disease CAN look similar. Botrytis also causes black sclerotia and white fungal growth. However, Botrytis sclerotia are quite large, often larger than a pencil eraser.

    So, what do we do now? We're still working on long-term management strategies, but the most important steps to take now are vigilance when culling (look at the plants you are pulling for symptoms like you see in this article, and if they are present, call us to take a sample and have the disease verified) and, if you see anything suspicious, reduction of movement of inoculum. The main ways diseases get moved around are by dumping culls (compost, field edges, etc) and my moving soil on equipment. Throw away your culls, and wash equipment that may have come in contact with suspicious garlic or the soil it is growing in. Everything from cultivation equipment to harvest bins should be cleaned. 

    We will keep learning about this disease and will keep sending out information, particularly to help you make decisions about what to sell and buy. For now, remember that the west coast has learned to manage the disease, and we will too. -Crystal Stewart, ENYCHP




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