Serious Grower

A summary of what the expert vegetable growers are talking about in the northeast this week.

Real-time reports of pests and diseases affecting northeast vegetable crops and science-based advice on how to manage them.

I will be including brief field reports in the feed through the growing season, featuring real-time reports from extension specialists in New England, New York, and the mid-Atlantic states. Pay close attention to where some of these reports are coming from because we’ll be covering a wide region and please reach out if you need help connecting with your local extension specialist wherever you are. We’ll get you hooked up with the right expert in your area! Check out breaking news on corn earworm research! https://www.cewipm.org/ More information about onion & garlic diseases https://www.apsnet.org/edcenter/pdlessons/Pages/Stemphylium-leaf-blight-Onion.aspx https://rvpadmin.cce.cornell.edu/uploads/doc_480.pdf https://www.umass.edu/agriculture-food-environment/vegetable/fact-sheets/alliums-botrytis-neck-rot Biocontrol suppliers for beneficial nematodes https://ipmlabs.com/ https://www.griffins.com/category/HGPROD.PROTECT.INSECTS https://www.biolineagrosciencesna.com/ https://www.persistentbiocontrol.com/about How to grow your own beneficial nematodes https://nnyagdev.org/index.php/persistent-biocontrol-nematodes-instructional-manuals-and-videos/

Real-time reporting on pests and diseases of vegetable crops from experts in the northeast US.

Real time reports of pests and diseases impacting vegetable crops, as well as critical discussion topics from experts in the northeast US.

I will be including brief field reports in the feed through the growing season, featuring real-time reports from extension specialists in New England, New York, and the mid-Atlantic states. Pay close attention to where some of these reports are coming from because we’ll be covering a wide region and please reach out if you need help connecting with your local extension specialist wherever you are. We’ll get you hooked up with the right expert in your area! More information on alium leafminer https://extension.psu.edu/allium-leaf-miner-on-track-to-emerge-in-early-april More information on identifying brassica pests https://lgpress.clemson.edu/publication/identification-of-common-insect-pests-of-brassica-crops/ More information on scouting onions for thrips https://youtu.be/VdoXseBqo5o?si=2kC0tr7IqW6GQfll https://rvpadmin.cce.cornell.edu/uploads/doc_1168.pdf Interactive Air Quality Map https://gispub.epa.gov/airnow/?monitors=ozonepm&contours=ozone&xmin=-9064742.346057506&xmax=-7186225.938921513&ymin=4781064.352722573&ymax=5627375.12989582 More information about ozone damage on vegetable crops https://cvp.cce.cornell.edu/submission.php?id=92 https://blogs.cornell.edu/livegpath/gallery/cucurbits/ozone-injury-in-cucurbit-crops/

I will be including brief field reports in the feed through the growing season, featuring real-time reports from extension specialists in New England, New York, and the mid-Atlantic states. Pay close attention to where some of these reports are coming from because we’ll be covering a wide region and please reach out if you need help connecting with your local extension specialist wherever you are. We’ll get you hooked up with the right expert in your area! More information on alium leafminer https://extension.psu.edu/allium-leaf-miner-on-track-to-emerge-in-early-april More information on identifying brassica pests https://lgpress.clemson.edu/publication/identification-of-common-insect-pests-of-brassica-crops/ More information on beet leafminer https://www.umass.edu/agriculture-food-environment/vegetable/fact-sheets/beet-spinach-leafminer Jonathan Ebba's Vermont Vegetable & Berry Growers Association webinar on Improving High Tunnel Ventilation https://www.youtube.com/watch?v=zAJX51TBZL4&list=PLszfvPfJBpgwzTlvLlnQlojedJnj0zoe3&index=11 More from the UNH Greenhouse Team https://media.unh.edu/channel/Greenhouse%2BProduction%2BWebinars%2Bby%2BUNH%2BCooperative%2BExtension/383388602

I will be including brief field reports in the feed through the growing season, featuring real-time reports from extension specialists in New England, New York, and the mid-Atlantic states. Pay close attention to where some of these reports are coming from because we’ll be covering a wide region and please reach out if you need help connecting with your local extension specialist wherever you are. We’ll get you hooked up with the right expert in your area! Andy Wyenandt's post on Recognizing cold injury in spring crops https://plant-pest-advisory.rutgers.edu/cold-injury-in-cucumber-2/ More information about weeds from the morning glory family https://extension.psu.edu/the-noxious-persistent-invasive-and-perennial-bindweeds More information about wireworm damage in rootcrops https://www.uvm.edu/d10-files/documents/2026-03/Lewins_Wireworm_Research.pdf Webinar from eOrganic on using High Glucosinolate Mustard as an Organic Biofumigant in Vegetable Crops https://youtu.be/yHilDyTmxTo?si=q1eGP1RJIPSHp9zj

I will be including brief field reports in the feed through the growing season, featuring real-time reports from extension specialists in New England, New York, and the mid-Atlantic states. Pay close attention to where some of these reports are coming from because we’ll be covering a wide region and please reach out if you need help connecting with your local extension specialist wherever you are. We’ll get you hooked up with the right expert in your area! US Drought Monitor Northeast Report https://droughtmonitor.unl.edu/CurrentMap/StateDroughtMonitor.aspx?Northeast Prediction model for cabbage maggot https://newa.cornell.edu/cabbage-maggot/ More information about asparagus beetle https://academic.oup.com/jipm/article/5/3/B1/2194056 More information about leek moth https://www.uvm.edu/extension/leek-moth-information-center More information about allium leafminer https://cals.cornell.edu/integrated-pest-management/outreach-education/fact-sheets/allium-leafminer Video from Cornell’s Veg Team’s Stop the Rot Project identifying foliar symptoms of bacterial diseases of onion and how to distinguish bacterial diseases from other non-bacterial lookalikes. https://youtu.be/pTYmdIwjbao?si=Mf0GfKlioUIxSlE7 From Christy Hoepting (CCE Cornell Vegetable Program): Cornell Onion (Dry Bulb) Fungicide “Cheat Sheet” for Control of Leaf Diseases in New York, 2025 https://rvpadmin.cce.cornell.edu/uploads/doc_1216.pdf Onion disease risk prediction tool that can help you track your risk to Botrytis leaf blight, onion downy mildew, and purple blotch https://newa.cornell.edu/onion-diseases/

I will be including brief field reports in the feed through the growing season, featuring real-time reports from extension specialists in New England, New York, and the mid-Atlantic states. Pay close attention to where some of these reports are coming from because we’ll be covering a wide region and please reach out if you need help connecting with your local extension specialist wherever you are. We’ll get you hooked up with the right expert in your area! Leek moth information center https://www.uvm.edu/extension/leek-moth-information-center Allium Leafminer Factsheet https://cals.cornell.edu/integrated-pest-management/outreach-education/fact-sheets/allium-leafminer More information about cabbage maggot https://newa.cornell.edu/cabbage-maggot/ https://cvp.cce.cornell.edu/submission.php?id=919 https://extension.umaine.edu/ipm/ipddl/publications/5005e/ More information about damping off https://extension.umn.edu/solve-problem/how-prevent-seedling-damping#:~:text=Low%20light%2C%20overwatering%2C%20high%20salts%20from%20over,are%20all%20associated%20with%20increased%20damping%20off

Pest report for the northeast region for April 15, 2026

Kasi is a non-commercial farmer in Montana’s Bitterroot Valley, and she’s been reading about Luther Burbank alongside a pile of seed catalogues. We discuss what makes crops ”true to seed”.

Kasi is a non-commercial farmer in Montana’s Bitterroot Valley, and accidental grasshopper rancher. The ins and outs regarding the rearing and farming of insects is discussed.