Seedless watermelon cultivation pest control
The prevention and treatment of diseases should be based on prevention and prevention and control. The pests that injure watermelon are mainly the following: seedling disease, anthracnose, epidemic disease and wilt disease. The pests mainly include underground pests (including species flies, tigers, nematodes, etc.), aphids, cabbage butterfly, and tobacco budworm, etc. Diseases at the seedling stage should be treated with soil disinfection, seed disinfection, soil moisture reduction, and the method of enclosing soil and medicine. Anthracnose and disease mainly occur under conditions of moderate temperature and high humidity. At this time, special attention should be paid to the prevention with Bordeaux mixture. Immediately after the onset of the disease, it should be treated with either 800 mg of copper lactate or green lactone. Fusarium wilt disease should be avoided or grafted for prevention. After onset, the supply of fertilizer and water should be controlled, and the diseased strains should be immediately removed, supplemented with thiophanate-methyl, anti-dry spirit, and 600 grams of Rhizoctonia spp. Prevention and control of pests: Soil pests are mainly used for soil disinfection, artificial killing, and trapping and killing; pests on the ground are generally controlled by chemicals, and chemical control can be controlled by BT and extermination. The pesticides used to control pests should be used alternately.
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