In order to obtain better production, precautionary measures must be taken to protect garlic crop from various diseases and harmful insect pests. Because garlic leaves and stem rot disease can occur at any stage of growth. The symptoms of the disease appear in the form of brown spots on the leaves and stems.
Later, their color becomes reddish, after which the affected leaves and stems become molded, and ultimately the plants die. Garlic leaf blight disease would first start with the end of leaves and leaves of crop become dry from upper surface. In the intensity of attack, all leaves are dried up, which reduces the size of the garlic ball and hence reduces production.