Jon Tollefson

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Evaluation of corn rootworm hybrids
Evaluation of corn rootworm hybrids
Evaluation of corn rootworm hybrids
When should you be concerned about adult corn rootworm feeding on your corn?
The monster in Iowa corn fields
The monster in Iowa corn fields
Bt rootworm corn failures: Understanding the issues
Rotation-resistant corn rootworms in Iowa
Rotation-resistant corn rootworms in Iowa
Corn rootworm larvae are actively feeding on your corn
Grape colaspis damage occurring in central Iowa
The variant western corn rootworm in Iowa
Did northern corn rootworms lay eggs in soybeans?
Northern corn rootworms in soybeans: What does it mean?
Soybean aphids: What's happening?
Rootworms and YieldGard RW hybrids
Rootworms and YieldGard RW hybrids
Grape colaspis found in central Iowa
Corn insecticide and YieldGard Rootworm evaluations
Soybean aphids making a mark
More corn rootworms are good! (or bad?)
Corn rootworms are back!
Management of second-generation bean leaf beetles
Management of bean leaf beetle to reduce defoliation
Corn rootworms and lodged first-year corn
Corn rootworm insecticide consistency 7-year tests
Corn rootworm insecticide consistency 7-year tests
Watch alfalfa for blister beetles
Be aware of corn leaf aphids
Corn rootworms are here!
Slime trails in the moonlight
European corn borer a problem?
Black cutworm cutting forecast
Corn rootworm insecticide consistency
Corn rootworm insecticide consistency
Two-spotted spider mites on soybean
It's time for rootworm decisions
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