In mid-late and late May, fruit growers began to bag pears. At this time, the pears were in the young fruit period, the temperature was high, and various pests also entered the peak period one after another. Therefore, the prevention and control of pests and diseases at this time is the key to the management of pear orchards before bagging.
Spraying insecticides and fungicides To prevent pests and diseases that threaten fruit, such as ringworm disease, black spot disease, tenebrio molitor, and krone mealworm, they must be sprayed with insecticides and fungicides strictly before bagging. It should be noted here that high-efficiency insecticides and fungicides that are less prone to phytotoxicity should be used. Fungicides should be both protective and therapeutic. Fuxing or diniconazole alcohol may be used as the therapeutic agent, and Daisheng, Yibao, and Mancozeb may be used as protective fungicides.
Precautions Fruit growers should pay attention to the following points before spraying: The young fruit surface is young, and the agent before bagging should be selected as water-based formulation, suspension agent or wettable powder to avoid damage to the fruit surface; use low-capacity or ultra-low Volume spray, liquid atomization is better, spray carefully and thoughtful, so that the positive and negative sides of the leaves, the young fruit whole body, branches are evenly drugged; focus on spraying the fruit surface, but the nozzle from the fruit surface to maintain at least 30 cm, or pressure is too easy to create The results of rust or phytotoxicity occurs; after spraying, the drug solution is allowed to dry and then bagged. It is strictly forbidden to carry the bagging. Otherwise, it is easy to produce phytotoxicity; spraying a drug can be bagged for 2 to 3 days, after 2 to 3 days. The effect is greatly reduced, so it can be bagged while spraying. If there is a large amount of rain during the week when the bag has not been set or bagged, it should be bagged after the application of the drug.
Dehydrated Garlic Flakes,Roasted Garlic Flakes,Dehydrated Granulated Garlic,Bulk Granulated Garlic
shandong changrong international trade co.,ltd. , https://www.changronggarliccn.com