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Left: Large green leaves of hosta have white and yellow discoloration on the outside edge of the leaves. Right: A green pepper with a tan spot that appears mushy.

Leaf Scorch and Sunscald in the Garden

Long stretches of hot, dry weather will upset the growing habits of all plants and will lead to some unusual symptoms on leaves and produce in the garden. July and August are a prime time to watch for leaf scorch and sunscald.

Small black beetles covering a partially defoliated leaf.

Flea Beetles Causing Issues in Canola

Large flea beetle populations in canola have been observed in neighboring states and within South Dakota. The hot, dry and sunny conditions that we have been experiencing throughout 2021 have been ideal for flea beetle populations.

Cream-colored moth with a dark brown band in the middle of its body.

It’s Time To Start Scouting For Banded Sunflower Moths

Sunflowers throughout South Dakota are quickly approaching the R3 growth stage, which means it’s time to start scouting for banded sunflower moths. Banded sunflower moths are capable of reducing yields due to their caterpillars feeding on the bracts, florets and seeds.

Gray beetle with long antennae that are alternating white and black pattern on green leaf petiole.

Dectes Stem Borer May Be More of an Issue During 2021

Dectes stem borers are an annual pest of sunflower in South Dakota. During most years, they do not cause major issues in sunflower. However, we have observed increased issues with this pest during dry years.

Small, black beetle with a long snout.

Headclipping Weevils in Sunflower

Headclipping weevils have been active in some sunflower fields and in ornamental sunflower throughout South Dakota. Although the headclipping weevil is considered a minor pest of commercial sunflowers, it can cause a lot of problems for individuals trying to maintain sunflowers in their yards and gardens.

a bigger group of people in a town square doing various things

Peterson Farm Brothers to Headline AgriCulture on the Square

July 23, 2021

After a one-year break due to the pandemic, AgriCulture on the Square will be back in Rapid City, South Dakota on Saturday, Sept. 11.

Mother cow with calf in a dry, drought-stressed rangeland.

Sustainable Agriculture Curriculum Now Available for Middle School Educators

July 21, 2021

South Dakota State University Extension has launched a new educational program for middle school science teachers, homeschoolers and 4-H youth program advisors looking to add a sustainable agriculture curriculum to their lesson plans.

Green and brown grasshoppers on the leaves of a sunflower plant.

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.

Corn silks with a beetle on them.

Redheaded Flea Beetles Clipping Silks

This week, redheaded flea beetles were observed in corn. Redheaded flea beetles will often strip only a layer of the leaves off corn, which results in windowpane holes, but the bigger issue is that they will also feed on corn silks.

a map of South Dakota showing the drought conditions

July Drought Hours to Address Livestock Nutrition, Crop Quality Concerns

July 15, 2021

More South Dakota acres are now in an extreme drought condition as lack of moisture and high temperatures continue to impact much of the state.