What is cowpea powdery mildew? An introduction to cowpea cultivation diseases
What is cowpea powdery mildew? An introduction to cowpea powdery mildew disease and its control methods Cowpea powdery mildew occurs mainly on the leaves. In the early stage of the disease, yellow-brown spots appear on the underside of the leaves; after they enlarge, they become purplish-brown spots covered with a thin layer of white powder. The powdery mildew pathogen is also a fungal disease, and on the leaf surface...
What is cowpea powdery mildew? An introduction to cowpea powdery mildew disease and its control methodsCowpea powdery mildew occurs mainly on the leaves. In the early stage of the disease, yellow-brown spots appear on the underside of the leaves; after they enlarge, they become purplish-brown spots covered with a thin layer of white powder. The powdery mildew pathogen is also a fungal disease, and it is most likely to occur when water droplets remain on the leaf surface for a long time. Cowpea powdery mildew can be controlled by referring to the following methods:
In the course of routine production management, strengthen ventilation and moisture removal, reasonably regulate the greenhouse temperature, and at the same time do good preventive work. Daconil M-45 or thiophanate-methyl wettable powder, etc., can be sprayed. Once the disease occurs, use chemicals promptly for control. Bayer Infinito is the first choice; 50% sulfur suspension concentrate at 200 times dilution or Fenbiqing can also be used, and fumigants can also be used to fumigate the greenhouse, but note that the greenhouse should be ventilated promptly the next day after fumigation to avoid phytotoxicity.
Click to get more cowpea cultivation techniques
Click to get more vegetable cultivation techniques