Autumn tomato is one of the main varieties of autumn vegetable cultivation. In recent years, the cultivated area has been expanding. However, diseases and insect pests in some areas have increased year by year, affecting the quality and yield of autumn tomatoes. Therefore, pests and diseases on tomatoes must be prevented and controlled in advance. Early blight: After the onset of the disease, there are concentric ring-shaped lesions, dark brown, and water-stained. Before and after onset, 70% mancozeb WP may be used as a 500-fold dilution, or 75% chlorothalonil wettable powder as a 400-fold dilution. Once every 7 days, spray 3~4 times. Leaf mold: the cultivation of the disease is heavier. Before and after the onset of disease, 70% mancozeb WP can be used as a 500-fold dilution, or 50% skeletal WP can be sprayed as 800-1000 dilutions, once every 7 days, and sprayed 3 to 4 times. Botrytis cinerea: In the flowering period, 0.1% of 50% Skoda WP or 50% acetaminophen WP can be added to the medlar liquid, which is very effective. The fruit can also be sprayed, but care should be taken to prevent the bacteria from developing drug resistance. Can also be used more than 50% of the dust agent, spray 1 kg per acre. Virus disease: At the beginning of the disease, 20% of the virus A WP 500-fold dilution or 1000-fold dilution of potassium permanganate can be used. Once every 7 days, spray 2~3 times. Spot blotch: At the beginning of the disease, 70% mancozeb WP can be used as a 500-fold dilution, or 50% carbendazim WP can be used as a 500-fold dilution. Once every 7 days, spray 3~4 times. Insect pests: There are mainly cotton bollworms and aphids. In the flowering period, Helicoverpa armigera should be sprayed every 5 to 7 days, such as Dr insecticide, Insect mite and other high-efficiency, low-toxicity, low-residue insecticides, and they should be changed and applied frequently. The aphids can be killed by anti-Weiwei spray. Marine Tourism Food,Shrimp Skin,Seaweed Snacks,Dried Shrimp Zhoushan Fudan Tourism CO., LTD , https://www.fudanfood.com
Autumn tomato pests and diseases prevention and control effect is good
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