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FALL   •   WINTER   •   SPRING   •   SUMMER          New Vineyard Timeline
Grape - Fall Content

B.E.V. NY   •   BUSINESS MANAGEMENT   •   CULTURAL PRACTICES   •   IPM   •   VINE NUTRITION & SOILS

Event Details

Date

March 17, 2020

Time

1:00pm

Location

ZOOM Meeting
On-line

Host

Northern Grapes Project



Northern Grapes Webinar- Growing Grapes without Glyphosate

March 17, 2020

Northern Grapes Webinar- Growing Grapes without Glyphosate

Glyphosate is a broad-spectrum, postemergence-applied, systemic (phloem-mobile) herbicide. It was first synthesized in 1950 (Cilag) an http:// d patented as a chelator in 1964 (Stauffer Chemical; its herbicidal properties were identified in 1970 (Monsanto Company) who marketed it under the trade name ?Roundup' in 1974. In 2010, more than 700 glyphosate-based products were available across multiple markets. Glyphosate targets the 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS) enzyme which is involved in the generation of aromatic amino acids, auxin, lignin, and other secondary products. The evolution of glyphosate resistance (47 species worldwide) and varying public perception about the active ingredient has encouraged some producers to seek alternative strategies for weed control. This includes increased adoption of physical and cultural tools, as well as the use of substitute herbicides. Depending on the weed spectrum involved, multiple preemergence and postemergence products may be needed to achieve desirable levels of weed suppression. This webinar will (1) review non-chemical control options for weeds and (2) describe the modes and sites of action, selectivity, and application timing of other herbicides registered for use in grapes. This presentation will also detail the factors that can positively and negatively impact the performance of alternatives and discuss strategies to maximize their efficacy; specific attention will be directed towards the management of difficult-to-control species, such as perennials, that have been historically targeted by glyphosate applications. The last part of the seminar will describe the differences in signal words, PPE requirements, days-to-harvest, and reentry intervals between glyphosate-based herbicides and available chemical alternatives.

Registration: You need to pre-register to attend. Registrants will receive a link and reminder 1-2 days before the presentation.

Register at: https://cornell.zoom.us/webinar/register/WN_J9bdulHTSOSQo3ocwu9wmA

Please address any questions to: rjw256@cornell.edu




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