Herbicide resistant weed control


Herbicide Resistant Weed Control Field Day 2020 (virtual tour)

  • Wednesday, October 21, 2020, 11:00 AM - 1:00 PM

REGISTRATION is REQUIRED to receive your credits!

2.0 NYSDEC credits category 10, 1,21, 23

Update on Current Status of Waterhemp and Marestail in NY Mike Stanyard, CCE/NWNY Team
Tall waterhemp and marestail glyphosate resistant populations started about 7 years ago in WNY. They were isolated spots that have now expanded to at least eleven counties dealing with populations. Mike will talk about how they got here, where they are located and why their biology has allowed them to expand.
Waterhemp Resistance: Results of Spray Chamber Mode of Action Study Bryan Brown, NYS IPM Program
Tall waterhemp seed was collected from fields from across the region in 2018. They were all unrelated populations and so it was not known there origin and what herbicide modes of action that they would be resistant to. To answer this question, Bryan planted seeds from each population and set up a replicated spray trial in the greenhouse and applied four herbicides with different modes of action. He will present those results.
Walking Tour and Review of Soybean Herbicide Efficacy
Bryan Brown, NYS IPM Program and Jose Venancio Fernandez, Bayer Crop Science
We are cooperating with a grower who has a history of tall waterhemp problems. A test area was set up in a soybean field and 16 treatments were applied with four replications. Treatments consisted of pre’s only, post’s only and a combination of pre followed by post. Jose will lead the walking tour and review each treatment to see how well it controlled the waterhemp and marestail.
Walking Tour and Review of Corn Herbicide Efficacy
Mike Hunter, CCE/NNY Team and Bryan Brown, NYS IPM Program
In the same cooperators field, a test area was set up in the corn with 12 different herbicide treatments with four replications. Mike will lead the walking tour and discuss which treatments or combinations resulted in the best control of our two resistant weeds.

2.0 NYSDEC credits category 10, 1,21, 23
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Meeting ID: 953 9724 0748
Passcode: weeds


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Last updated September 15, 2020