IC-498(16) -- June 25, 2007

Plant Diseases

Spring sampling not recommended for most corn nematodes

Needle nematodes are the exception.
Plant Diseases

SCN females on roots signal infestations and possibly ineffectiveness of resistance

Look for nematode females on roots of SCN-resistant soybeans.
Plant Diseases

Another fungicide approved for soybean rust in Iowa

Includes label status of fungicides for soybean rust in Iowa.
Plant Diseases

Iowa State plant pathologists detect crop diseases from satellites

Remote sensing can identify diseases down to one square meter.

Extension field agronomist appointed in central Iowa

Aaron Saeugling is new extension field agronomist.
Plant Diseases

Fungicide applications in corn may be increasing

Corn-on-corn carries an increased disease risk.
Degree Days

Warm temperatures = rapid growth

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.