Sunflower

Grasshoppers Already Moving Into Sunflower Fields

With grassland food sources being depleted earlier than usual due to drought, grasshoppers are moving into nearby crops in search of vegetation. In parts of western South Dakota, grasshopper nymphs have already been observed feeding on young sunflower plants.

Sunflower Receptacle Maggot Flies Spotted in Sunflower

Quite a few sunflower receptacle maggot flies have been spotted in South Dakota sunflower fields. The adults don’t feed on sunflower, but the larvae of this insect are considered minor pests of South Dakota sunflower.

Cutworms in Sunflowers

In South Dakota, some late-planted sunflower fields are having some cutworm pressure. Although most cutworm activity should be wrapped up by now, it is possible that some populations may have been feeding up until the beginning of July.

Grasshoppers Are Causing Concerns in South Dakota Crops

In 2020, grasshopper populations were an issue in parts of central and western South Dakota. The populations this year are moving into crops earlier and appear to be as bad as the ones observed last year.

Check Your Bins This Spring

As it warms up this spring, don’t forget to check the bins. Grain bins work as solar heat collectors, and the grain inside of them may be much warmer than expected.

Soybeans & Sunflowers: Alternative Cattle Forages

Alternative forages like soybean silage or hay, and sunflower silage, can help stretch conventional forage supplies and help avoid overgrazing pasture.

2021 South Dakota Pest Management Guides Now Available

February 04, 2021

SDSU Extension has released the 2021 South Dakota Pest Management Guides.

Checking Weed Control at Harvest

With harvest now in full swing, don’t forget to look at your fall weed control. What are the weeds that are left in your crop? Do you know what weeds they are? Is there a weed that you do not know?

Thistle Caterpillars Showing Up on Canada Thistle

This week we received reports of caterpillars feeding on Canada thistle. After taking a look at the caterpillars, we determined that they are thistle caterpillars. However, we typically don’t see thistle caterpillar activity in S.D. until July or August. So why are they showing up so early this year?

Field Studies: Blowing the Whistle on Marketing Claims

With technology surrounding today’s culture, data and marketing information has become a key part of life. The best way to determine if a product or practice is effective is to ask for the data and research backing a company’s claims. However, before a producer makes a decision, understanding the data and statistics is key.