Harvest Snap beans are harvested as immature pods before the seeds are well developed. At this stage, they have the best flavor and nutritional value. Beans must be picked two times a week to ensure a continuous harvest. If pods are allowed to mature, the plant will stop blooming. Insects, Diseases and Other Pests Snap beans are attacked by many insects and diseases and their damage can be serious at times.
Chemical control is another way to combat diseases and insects.
However, it should be used only after all other methods have failed. Brown to black sunken circular spots. Under moist conditions, spots may have pink color. Dark reddish-brown to black area on veins. Till in debris in the fall.