Botrytis cinerea damage tomato prevention
Gray mold mainly harms tomatoes, cucumbers, eggplants, peppers and so on. When the seedlings were onset, the tip was yellow and the lesions were V-shaped. The leaves of adult plants are affected and the leaves begin to appear light brown spots. Gradually formed in the shade of the ring, the latter leaves withered. It also produces water-spotted, small spots that produce a large amount of gray mold layer at high humidity. The victim's fruit was grayish soft rot and the fruiting period was the onset of the disease.
Control methods
1. Strengthen the management of the field: To control the amount of water and the frequency of the tomatoes during the flowering period, reduce the humidity, and frequently change the air and dampen the air in the greenhouse.
2. In the early stage of disease, preventative control is performed with protective fungicides such as Antaisheng, and once every 5 to 7 days. The treatment of bactericidal agents such as quick-ickling, Shijiale, good rick, and Nongliling was used only for the duration of the disease.
3. Chemical control: 50% fasting WP 1500 to 2000 times or 50% acetaminophen wettable powder 1000 to 1500 times or 40% Shijiale suspension 800 to 1200 times or 43% Hollik suspension 3000 ~ 4000 times or 50% of ethylene sclerotia net dry suspension agent 1000 times or 10% polyoxin 80 ~ 420 times or 50% of high speed net WP 800 times spray control. These drugs are best used interchangeably so as not to produce resistance.
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