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Paul Johnson

SDSU Extension Weed Science Coordinator

605-688-4591

Berg Agricultural Hall 229
Agronomy, Horticulture & Plant Science-Box 2207A
University Station
Brookings, SD 57007

Also by Paul Johnson

harvester chopping corn silage, depositing silage into green wagon.

Herbicide Residual Effects on Cover Crops after Corn Silage

Fact sheet about herbicide residual effect on cover crops after corn silage.

Field with purple flax flowers

Herbicide Residual Effects on Cover Crops after Wheat

Fact sheet about herbicide residual effect on cover crops after wheat.

Harvested corn field with field pennycress throughout.

Soybean Cyst Nematode Management Plans Should Include Proactive Weed Management

While soybean cyst nematode can be managed through use of resistant varieties and crop rotation, presence of alternative weed hosts can negate the benefits of these practices by providing a host for soybean cyst nematode to continue to accumulate in the soil.