A few pests are starting to show up in fields. If you haven’t had a chance to take a look yet, plan to check those high risk fields that are prone to seeing soybean aphids (soybeans) or western bean cutworm (corn and dry beans) in the next week or so. Soybean aphids: Soybean aphids are […]
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 […]
First flower open on soybeans means that they have reached the R1 stage. From this stage until the start of R6, where the pods on the top few nodes of the plant are filled with a swollen seed, soybean aphid thresholds kick in. A few fields were colonized earlier this spring but for the most […]