How to prevent and control leaf spot disease in ginger during hot and rainy seasons?
How to prevent and control leaf spot disease in large ginger during hot and rainy seasons? Please give an introduction to the methods. During the hot and rainy season, the occurrence of leaf spot disease in large ginger is on the rise, and prevention work for this disease currently needs to be done well. Ginger spot disease mainly damages leaves. Infected leaves develop yellow-white elliptical or irregular lesions, and in humid conditions scattered small black dots grow on the lesions...
How to prevent and control leaf spot disease in large ginger during hot and rainy seasons? Please give an introduction to the methods
During the hot and rainy season, the occurrence of leaf spot disease in large ginger is on the rise, and prevention work for this disease currently needs to be done well.
Ginger spot disease mainly damages leaves. Infected leaves develop yellow-white elliptical or irregular lesions, and in humid conditions scattered small black dots grow on the lesions, while in dry conditions the diseased area cracks or perforates. If the lesions connect, they can cause part of the leaf or the entire leaf to wither and dry up.
Practice has found that hot, rainy weather, or continuous cropping land and low-lying plots favor the occurrence of this disease. Identification has shown that this disease is caused by infection with the fungus Phyllosticta zingiberi, not by bacteria, so vegetable growers are reminded to pay attention to pesticide use.
Since this disease mainly damages leaves, reducing their photosynthesis and affecting yield improvement, early prevention and early treatment are advocated. In addition to strengthening management to control the occurrence of the disease, spraying for protection is also needed. Fulian at 800 times or tebuconazole at 1500 times can be sprayed on the leaves for prevention; if symptoms of the disease are found, Baimei or Cuibei at 1500 times combined with Wujing at 3000 times can be sprayed on the leaves for control.
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