Powdery mildew is a common disease of cucurbits under field and greenhouse conditions in most areas of the world. All cucurbits are susceptible, but symptoms are less common on cucumber and melon because many commercial ...

Black rot, caused by the bacterium Xanthomonas campestris pv. campestris, is considered the most serious disease of crucifer crops worldwide. This disease is also known as blight, black stem, black vein, stem rot, and stump ...