Monday, April 25, 2011

Seed pick up

We just picked up our soybean seed for research projects this year. We have several projects planned for this year. Thanks, Syngenta for the seed!
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Friday, April 22, 2011

Wireworms and black cutworms

Two great articles from the University of Illinois Extension Bulletin came out this week. One was a reminder about wireworms in no-till corn production in Southern Illinois: The second was a notification about black cutworm moths caught in black light traps: It reminds me that we will probably start to see moths in our traps, even with all the rain lately. Trapping moths helps us predict when the caterpillars start to cut corn plants. Keep your eyes open for early season corn pests this year!

Wednesday, April 20, 2011

Rain, rain, go away

Our lab planned to put in our first bean trial this week at McNay farm. But the cold start to the week, followed by rain, hail and snow has definitely slowed things down. Not much commercial corn planting going on yet as a result of the weather. Looking forward to better weather next week.
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Friday, April 8, 2011

More bean leaf beetles this spring?

Not all insects can survive our cold winters in Iowa, but many have found adaptations to make it through the cold months. Some will go deep in the soil, hide under leaf litter, or are protected by snow cover. Bean leaf beetle adults rely on the latter two options to protect themselves from extreme temperatures. The last couple winters have been exceptionally cold and the state has experienced good “winter kill” for bean leaf beetle and other overwintering insects. Harsh temperatures combined with an increased use of insecticidal seed treatments have made these beetles almost hard to find in some areas of Iowa. But according to a temperature survival model created by ISU entomologists in 2000, last winter was more mild. We would expect higher survival in the lower half of the state compared to the last couple years. However this prediction is complicated by the lack of snow cover throughout most of the state, which can increase winter kill. So bottom line is to scout emerging soybean with a little bit more intensity this year, especially those early-planted fields. Find more details about this prediction in a recent ICM News article 

Thursday, April 7, 2011

Start scouting for alfalfa weevils

The southern half of Iowa has reached enough accumulated degree days for alfalfa weevils to become active. Start scouting now to detect infested areas.
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