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.
After the onset of the early blight, there were concentric ring-shaped lesions on the leaf surface, 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 disease facilities cultivation is more serious. 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.
The flowering period of gray mold can be added 0.1% 50% fasting WP or 50% acetaminophen wettable powder to the medlar liquid. The effect is very good. 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 can be used at the beginning of the disease by 20% of the 500-fold dilution of the virus A WP, or 1000-fold dilution of potassium permanganate, once every 7 days, and even spray 2 or 3 times.
In the early stage of onset of spot blotch, 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 to 4 times.
Insect pests mainly include 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.
Medical Accessories Consumables
Medical Accessories Consumables,Medical Laboratory Consumables,Medical Equipment Accessories Consumables,Medical Consumable For Hospital
Shaoxing Weijian Medical Supplies Co.,Ltd. , https://www.wetourmedical.com