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Soybean rust, other pests to be discussed at annual weed-plot tours
Missouri
Even though soybean rust, a fungus, has not been found in the United States, University of Missouri scientists will describe how they are getting ready for the possible disease outbreak in the No. 1 cash crop in the state.
Rust, which has cut yields in soybean fields in South America will be featured July 7, at the University of Missouri Bradford Research and Extension Center.
The event is billed as the "Weed Science and Pest Management Field Day," said Kevin Bradley, MU Extension weed specialist. "We've expanded the day to include a variety of topics."
About 10 stops are planned on wagon tours starting at 8:30 a.m. at the headquarters of the center, 4968 Rangeline Road, east of Columbia.
Laura Sweets, MU Extension plant pathologist with the Commercial Agriculture Program, will tell about soybean rust and show research on fungicides available if soybean rust enters this country.
Wayne Bailey, MU Extension entomologist, will show insecticide and fungicide treatments for corn and soybean seed. "Treatments to control soil insects are receiving a lot of attention throughout the state," he said.
On weed control research, there are a number of trials showing the new glyphosate salts and many "generic" glyphosates being marketed, Bradley said. "We have side-by-side comparisons of these products to investigate potential differences in weed control and soybean yield."
Shawn Conley, MU Extension Wheat specialist, will be at the Missouri Intensive Wheat Management Plots to tell how weeds, aphids, and viruses cut yields. With controls, Conley has set Wheat yield records at Bradford Center.
Of growing concern to growers are reports of herbicide-resistant weeds. "We'll have a tour stop to show and discuss the latest herbicide-resistant weed populations," Bradley said. "That includes a resistant common ragweed biotype recently identified in Missouri."
Other topics include control of grasses in corn and evaluation of various glyphosate tank-mix partners for soybean fields.
Bradley wants visitors to see the large number of plots comparing different herbicide treatments and weed management systems.
"The weed plots have always been a popular part of the field day," he said. "We give people a map of the plots and they can go look at the herbicides and the combinations they are interested in. They can then compare for themselves the level of weed control achieved with each treatment."
The field day should be of interest to producers, industry representatives, dealers, Extension specialists, and consultants.
There will be a $25 fee to cover lunch and a plot research book. Pre-registration is requested, but the fee can be paid on arrival. Call Jianmei Li at 573-884-7593 or send e-mail to liji@missouri.edu.
The 591-acre MU farm, a part of the Agricultural Experiment Station, is 7 miles east of Columbia, off of Highway WW. Directions to the farm can be obtained by calling 573-884-7945.
Date: 6/24/04
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