Fall is the time to control tough perennial broadleaf lawn weeds. The target weeds in the fall are dandelion, ground ivy, creeping bell flower, field bindweed and white clover.
Garden & Yard Issues
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When thinking of asparagus pests, we normally worry about early season feeding on developing spears. However, late summer and fall scouting is important to get ahead of spring insect problems. Two insects we recommend scouting for are the common asparagus beetle and the twelve-spotted asparagus beetle.
During this time of the growing season, it is common to observe aphids on garden plants, including peppers. However, when dense aphid populations are present, they can reduce pepper yields and cause rapid plant health decline.
Many gardens are being invaded by orange beetles that have a strong preference for flowering plants. Rest assured, these are soldier beetles and they aren’t feeding on the flowers! Instead, they are actually predators and pollinators.
Another insect that has been mistaken for the Asian giant hornet (also known by its media-popularized name of ‘murder hornet’) is the horntail wasp. Horntail wasps are wood-boring insects that are harmless to humans, as they do not have venom and cannot sting.
Cucumber beetles are a common pest in gardens and pumpkin patches during late summer and early fall. They can cause severe injury to cucurbits if large populations are present and are left unmanaged.
Squash bugs are a headache for gardeners almost every year in South Dakota. As their name implies, squash bugs feed on squash along with many other cucurbits. Injury caused by extensive feeding appears as wilting and may result in the death of infested plants.
Each summer we hear a droning buzz that comes from the trees. Many residents of South Dakota attribute this noise to locusts. But that isn’t what is making the buzzing sound! The insects responsible for the buzz are actually called cicadas
This year, we’ve noticed large populations of aphids on swamp milkweed plants and we’ve identified them as the oleander aphid (Aphis nerii), which is sometimes referred to as the milkweed aphid.
Every year we receive multiple reports of giant wasps that seem to invade yards and gardens. These wasps aren’t the same as the so-called "murder hornets," but are actually cicada killer wasps.