Insects

Soybean tentiform leafminer under examination light — **Figure 1.** An adult soybean tentiform leafminer. While STL has infested fields in Minnesota, North Dakota and South Dakota since 2021, the soybean pest has now been discovered in Nebraska. (All photos by Wayne Ohnesorg)

Soybean Tentiform Leafminer Found in Nebraska

October 10, 2024

A new soybean pest has moved into Nebraska — the soybean tentiform leafminer was positively identified in a Madison County field last month. At present, there are no known management methods for this insect.

Arthropod Abundance in Industrial Hemp in West-central Nebraska

September 11, 2024

A diversity of both beneficial and potentially harmful insects has been found in industrial hemp grown in west-central Nebraska, and continued research will be crucial for producers in managing pests as hemp production expands in the state.

Hereford cow in pasture — Featured speaker of the 2024 Nebraska Grazing Conference is Dr. Ray Ward, founder of Ward Laboratories, who will speak on his career in soils and plant quality analysis.

Pasture and Forage Minute: Nebraska Grazing Conference Aug. 6-7

July 16, 2024

Details on the upcoming 2024 Nebraska Grazing Conference, and considerations for mid-season forage evaluations and stable fly management in pastures.

Cattle drinking from pond — Nitrates and blue-green algae are two main concerns of water quality for livestock in Nebraska, and while not as common, salinity can also be an issue.

Pasture and Forage Minute: Forage, Insect and Water Quality Issues for Grazing Livestock

July 9, 2024

Extension educators review common issues for producers to bear in mind as livestock graze throughout the summer, including prussic acid, horn flies and face flies, and water contamination.

This Week on N Field: Insect Survival After Polar Vortex

February 1, 2024

What impact did the polar vortex have on those troublesome agricultural insects that are taking a winter nap? Nebraska Extension Educator Amy Timmerman weighs in.

Cattle in snow — While water demands in the winter may be less than summer, keeping water available can be difficult. Having animals eat snow may be tempting but requires an experienced herd, plenty of fresh snow and healthy animals.

Pasture and Forage Minute: Winter Insect Mortality and Livestock Water Needs

January 16, 2024

Extension educators review the effects of subzero temperatures on overwintering insects and whether snow can adequately be used as a water source for cattle.

Troy Anderson in university lab — A research team that included Husker entomologist Troy Anderson has discovered a potential breakthrough in combating the Varroa mite, a parasite whose spread of viruses can trigger catastrophic losses of honey bee colonies. (Photo by Craig Chandler, University Communication and Marketing)

Research Boosts Honey Bee Protection Against Deadly Viruses

August 25, 2023

The research team, which includes Husker entomologist Troy Anderson, has identified a drug treatment that stimulates and dramatically strengthens honey bees’ immune systems.

Soybean Aphid Scouting and Management

August 2, 2023

Soybean aphids in Nebraska typically reach the economic threshold and require treatment in late July through August. Treatment during this time is usually enough to keep aphid populations from resurging before they leave fields for the season.

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