soybean aphid threshold – Field Crop News

Find Soybean Aphids? Download the New Aphid Advisor V2.0 for Help with Spray Decisions

Posted on June 28, 2018 (August 7, 2020) by Tracey Baute

Some fields are starting to see soybean aphids colonize in the last few weeks. This is their typical behaviour and of no concern until soybeans reach the R stages, specifically R1 to R5. Plants need to have at least 250 aphids per plant across 80% of the field and see that population increasing over time […]

Soybean aphids are here…but don’t panic

Posted on June 20, 2017 (December 22, 2021) by Tracey Baute

It has been a few years since soybean aphids have been noticed in fields this early in the season. This is in part, because many fields were treated with insecticide seed treatments and were assumed to be protecting the crop early in the season. However, very recently published research across several US states has shown […]