Weed resistance happens when a herbicide program relies on only one mode of action. This places extreme selection pressure on weed populations, which means a number of resistant weeds can survive the herbicide application, producing thousands of resistant weeds.
September soybean fields in Nebraska, Iowa and Minnesota displayed large numbers of escaped waterhemp. Perhaps this was the case in other states, too. While your combine journey across all your acres is fresh in your mind (and your partners’ minds), take time to evaluate your weed control program to enhance future effectiveness....More
Herbicides applied in the fall often can provide improved control of many winter annual weeds, including marestail, compared with similar applications made in the spring, says Aaron Hager, a University of Illinois weed scientist....More
The 5 ag stories featured this week offer management tips for wet soybeans, as well as advice for fall herbicide treatments. Read about possible corn acreage in 2015, and check out one farmer's strategy for keeping his farm ahead during lower-price years. For the weather obsessed (like me), see what NOAA is predicting for weather conditions across the U.S. this winter.
The EPA is registering the herbicide Enlist Duo with first-time ever restrictions to manage the problem of resistant weeds. The pesticide is for use in controlling weeds in corn and soybeans genetically-engineered (GE) to tolerate 2,4-D and glyphosate....More
Reports of more severe waterhemp infestation in Midwest soybean acres continue to roll in as we head into harvest, and that means more herbicide-tolerant weed seed going into the ground to cause larger future problems....More
The University of Illinois Extension has released a new smartphone app called Sprayer Calibration Calculator. The app will assist applicators with calculations used when setting up and calibrating a sprayer.
“Do we need to till or not?” Purdue University weed scientist Bryan Young often hears this question from Midwest soybean growers fighting herbicide-resistant marestail, waterhemp and Palmer amaranth....More
This installment of 5 Ag stories to read offers best management practices for insecticide applications to help maintain water quality. There are also some crop insurance numbers, and an interactive map showing ag production for all states. Also hear what one family is doing for on-farm conservation. For a little fun, catch a fun "Frozen" parody from the infamous Farmer Derek.
This installment of “5 Agriculture stories to read” offers some help when deciding whether or not to spray fungicide. It also talks about research using an old maize gene (from oregano) to help new corn hybrids defend against pests. The USDA announced an ag investment fund for pensions and large investors, and an Extension expert offers tips for marketing corn at low prices. Finally, watch a parody about weed resistance; I think most farmers can relate!...More