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Crop Treatments

All Crop Treatments Content

Numerous grasshoppers feeding on a yellow sunflower head.

Watch Sunflowers for Grasshopper Defoliation and Flower Feeding

Grasshoppers continue to be an issue in some areas of South Dakota. The hotspots seem to be along the Missouri River, but it is a reminder that everyone should be monitoring their crops for grasshopper feeding.

Red-brown colored weevil with bent antennae originating on the elongated mouthparts.

It’s Time to Start Scouting for Red Sunflower Seed Weevils

In South Dakota, sunflower flowering is getting underway. That means it is time to start scouting fields for red sunflower seed weevils.

Small pale green leafhopper on a green alfalfa leaf.

Potato Leafhoppers in Alfalfa

Potato leafhoppers are a migratory pest that commonly impact alfalfa fields throughout South Dakota. Feeding injury caused by potato leafhoppers resembles drought stress and, if left untreated, can reduce both yield and forage quality.

Two photos of oat plants exhibiting fusarium root and crown rot. Left: An oat tiller with pinkish color on the crown and first node indicative of Fusarium root and crown rot. Right: Green oat plant with yellow, dry markings throughout indicative of Fusarium root and crown rot.

Fusarium Crown and Root Rot Observed in Oats

Some oat fields are showing plants wilting with tillers dying prematurely and heads looking bleached. Inspecting the crown and sub-crown area reveals the discoloration and rotting and sometimes a pinkish color can be observed. These are typical symptoms of Fusarium root and crown rot.

Green canola plants infested with false chinch bugs with dying leaves.

False Chinch Bugs Are Active in Canola

We have received reports of false chinch bug populations in canola this week. Heavily infested canola fields will sometimes appear drought stressed, but closer inspection reveals that false chinch bugs are the culprits for the wilting plants.

Rows of empty white, plastic pesticide containers.

2020 Pesticide Container Recycling

The South Dakota Department of Agriculture is again offering pesticide container recycling services across the state. The list of 2020 dates and locations is available now, with the first collection events on July 13 in Herreid and Selby, S.D.

Yellow and green leaf of oats. Yellowing color is a symptom of Barley yellow dwarf virus.

Barley Yellow Dwarf Developing in Oats

A few oat fields that were recently scouted were found to have barley yellow dwarf virus infected plants. The infected plants were few and scattered throughout the oat fields.

Large mass of small green insects and plant debris present on green implement.

Watch for Pea Aphid Populations in Alfalfa

Recent reports have indicated that pea aphid populations are very large in some alfalfa fields and should continue to be monitored and possibly managed.

Two photos of alfalfa weevils during different lifecycle stages. The left is the larva stage and has a longate, green larvae that looks like a caterpillar with white stripe running down the body and brown h

It’s Time to Scout for Alfalfa Weevils

The 2018 and 2019 alfalfa weevil populations were relatively low, and as a result, we didn’t receive very many calls regarding this pest during those years. However, 2020 has been quite a bit different, and alfalfa weevil populations seem to be much higher.

A red sprayer in a green field with a cloudy sky in the background.

How to Stop Drift

The goals of applying any crop protection products include: increasing effectiveness, mitigating drift, and maximizing profits. We will focus on mitigating drift, even though all three interact with each other.