Frontier Extension District will host a public meeting, “Corn and Soybean Update 2012" at Celebration Hall on the Franklin County Fairgrounds February 28, beginning at 6 p.m. A meal will be provided, so please RSVP to Darren Hibdon 785-229-3520, or Rod Schaub 785-828-4438. Topics for the evening program will be: Soybean Response to Fungicides and Insecticides; Micro Nutrients and Foliar Fertilization; Herbicide Resistant Weeds; and How do We Control Waterhemp and Marestail. Speakers will be Doug Shoup, SEA agronomist; Dorivar Ruiz-Diaz, professor Soil Fertility; and Curt Thompson, professor Weed Management.
Do I have resistant weeds? Perhaps if: you have surviving plants in the middle of a group of dead plants; if you have used the same herbicide “mode of action” for several years; if your herbicide failure was not due to unfavorable environment conditions, or inadequate spray coverage , or oversized weeds at application, or if you used an inadequate herbicide rate.
Your best defense against herbicide resistant weeds is to: rotate and/or tank mix herbicides with different modes of action, within and across years; use a crop rotation; include other control tactics (cultivation, crop competition); and use the proper rate of herbicide at the proper time.
Currently, in Kansas, we have confirmed cases of glyphosate resistant waterhemp, marestail, giant ragweed, common ragweed and kochia. We hope to see you on February 28 for details on how to control these weed species.
For information on the upcoming meeting or if you have special needs, please contact Darren Hibdon at 785-229-3520 or Rod Schaub at 785-828-4438.