Source: NCSU COOPERATIVE EXTENSION, 8/22/19


Do: Scout your crop. Identification is the first step so you know what you’re dealing with. The second step is counting what you have. Using these two things, you can apply Extension-recommended thresholds and save money. Use a sweep net for beans in 30 inch rows or less and a drop cloth for wide-row beans.

Do: Assess your growth stage and canopy. Thresholds are set for the average situation. Your beans are not average! We can relax thresholds, depending on the pest, as beans become more mature. A full canopy can tolerate much more defoliation than the thresholds that are set. It’s important to adjust thresholds for each unique situation.

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