Gray mold is most common when flowering occurs during a cool period of high humidity. Crowded plants with a dense canopy of leaves also encourage gray mold. Infection begins in the flower and spreads to the pod.
Thin seedlings so that breezes can dry leaves. Avoid over watering and over fertilizing with nitrogen. Apply a copper soap fungicide as soon as flower buds can be seen, and continue applications as long as plants are flowering. We recommend Soap- Shield® Flowable Liquid Copper Fungicide.