IC-498(22) -- August 6, 2007

Plant Diseases

Summer scouting in soybean: Top dieback and other diseases

What you might find in your soybean field.
Insects and Mites

Whiteflies in Iowa soybeans

Spraying for soybean aphids may lead to abundance of whiteflies.
Soils

Carbon and nitrogen cycling with corn biomass harvest

What happens to soil carbon and nitrogen with stover removal?
Insects and Mites

When should you be concerned about adult corn rootworm feeding on your corn?

Watch corn fields during the time that they are pollinating.
Insects and Mites

Aphids attack!

High numbers, but not all of Iowa experiencing outbreak.
Announcements

Late-season clinics offer a variety of information

Events offer classroom sections and in-field hands-on activities.
Degree Days

Warm with some concerns

Degree day information for Iowa.
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Some of the articles contain pesticide recommendations that are subject to change at any time. The recommendations provided in these materials should be used only as a guide. It is always the pesticide applicator's responsibility, by law, to read and follow all current label directions for the specific pesticide being used. Due to constantly changing labels and product registration, some of the recommendations given in these writings may no longer be legal by the time you read them. If any information in these recommendations disagrees with the label, the recommendation must be disregarded. No endorsement is intended for products mentioned, nor is criticism meant for products not mentioned. The article's author, Iowa State University and Iowa State University Extension assume no liability resulting from the use of these recommendations.