Dairyland Seed Agronomy Cafe Webinar - PAR Research Update Soybeans

Questions regarding tar spot and where we see infection are common throughout the growing season. The Agronomy Team shares a map identifying confirmed and suspected cases of tar spot.

Corn rootworm (CRW) poses a significant threat to corn production in the U.S. Most prominent in the South and Midwest. CRW is also lurking in the northern states, and Dairyland Seed customers who don’t think they have CRW in their fields most likely do says Travis Lee, Corteva Research Scientist, and Corn Breeder.

Corn aphids have been identified in areas of the Dairyland Seed footprint. Aphids are a common pest of corn and related grass crops but rarely cause economic levels of damage. The reproductive habit of aphids allows populations to increase very quickly; however, they can also crash quickly, as aphids are highly susceptible to several natural predators, parasitoids, and pathogens. There are no research-based economic thresholds for insecticide treatments, but applications may be justified in drought stressed or late-planted fields with high and increasing aphid populations.