Agronomy •  2022-02-14

Early season pests feeding on your profits?

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soybean close up

Early season insects can feed on soybean seeds and seedlings causing plant injury, stunting, delayed emergence, or stand loss. Bean leaf beetle and soybean aphid both feed on young soybean plants.

Soybean aphids are small, about the size of a pinhead or smaller, yellow aphids with distinct black cornicles ("tail-pipes"). They are the only aphids to feed on soybeans in North America.

Late planted soybean fields are often at the highest risk of early soybean aphid attack. Seed treatments like Lumiderm™ insecticide seed treatment have been shown to provide effectiveness in delaying aphid increase, especially in late-planted situations.1

Bean leaf beetle adults are 1/5 inch long, typically dark yellow, but may be orange or red. Their wings often have four “rectangular” marks but may have two or no marks. They have a black triangle behind their pronotum (neck region). Larvae are white with a dark brown or black head and are found in soil near roots feeding in a nodule. 

Mild winters allow for higher-than-average overwinter survival of bean leaf beetles which can reduce plant populations on early planted soybean fields. Early season feeding of bean leaf beetle adults occurs on cotyledons, leaves, and the external surface of pods. Larvae remain in the soil and feed on nodules and roots.2 Adult bean leaf beetles also can transmit a bean pod mottle virus, which reduces yield and quality and is one cause for green stem in soybeans. While feeding during the vegetative growth stages occurs, the most economic damage occurs in summer as beetles feed on pods.3

Brevant ® seeds offers growers the latest in soybean technology, in a range of maturities, for all regions with excellent disease resistance packages and local testing. Combined with Lumiderm insecticide seed treatment from Corteva Agriscience™ you can rest assured that your soybeans are protected from early season insects like bean leaf beetle and soybean aphid. Our LumiGEN™ mark of assurance means that you get seed treatments designed, verified and proven in the field to protect Brevant seed. 

Choosing Brevant seeds soybean varieties with Lumiderm insecticide seed treatment ensures your crop will hit the ground running with protection from early season insect pests. Lumiderm insecticide seed treatment provides broad spectrum protection from early season pests including bean leaf beetle and soybean aphid and delivers uniform, healthy stands for maximum yields. Its unique mode of action and favourable environmental profile, makes Lumiderm a simple choice for your seed treatment.