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Pesticides

Summer Field Days – Weeds & Nutrients

Nebraska Extension has numerous field days that agronomists, conservationists, and farmers can attend during the summer across the state. Locally, we have two upcoming regional field days at the end of June and early July. Please learn more about each of the field days and consider attending. First up is our Weed Management Field Day […]
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Do you still need a wheat foliar fungicide?

Due to the dry weather, early season fungal diseases were low or not even present, i.e., no reports of stripe and leaf rust (view reports/map and take the survey yourself at https://cropwatch.unl.edu/plantdisease/wheat). I did not recommend a fungicide application prior to flowering this season, save the application and product cost. However, dependent on the near-term […]
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Preemergence Herbicides After Crop Emergence

When weather and workload does not permit the application of preemergence herbicides prior to planting, there are options. Some preemergence herbicides are labeled for broadcast application after corn and soybean emergence without injury. Additionally, early post-crop emergence herbicide applications including these herbicides are beneficial for controlling weed species with extended emergence (e.g., waterhemp and Palmer […]
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Pasture Biennial Forb Control in Late Fall

Late fall herbicide applications can be a good alternative to early spring for control of several introduced biennial forbs or broadleaf weeds in southeast Nebraska. A few of these biennial forbs are considered noxious weeds in Nebraska including musk thistle, plumeless thistle, and spotted knapweed while bull thistle, common mullein, and poison hemlock are just […]
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Soybean cyst nematodes – yield robbers

SCN sampling
Soybean cyst nematodes (SCN) are a plant-parasitic roundworm that attack soybeans in Saline, Jefferson, and Gage counties. The pest is not new or unfamiliar to area farmers and agronomists. However, sometimes we get too comfortable with old issues. As a reminder, SCN is the #1 yield-robbing pest in U.S. soybean production. Soybean cyst nematodes or […]
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Defoliating Insects in Soybeans

It is that time of year when Japanese beetles (Figure 1), grasshoppers, or various caterpillars consume the soybean leaf canopy. It is very easy to overestimate the amount of defoliation that has occurred. Many do not like scouting several locations within a field this time of year either but is it important. We should tolerate […]
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