When is the ripening period of apples?
Regarding the ripening period of apples and the knowledge of what pesticides are used in the field of floriculture, the following article will introduce to netizens by the editor.
The ripening period of apples and the prevention and control of diseases and pests As one of the main fruits in China, the planting area and output of apples rank among the top in the world. The ripening period of apples and the prevention and control of diseases and pests are the key issues of concern to fruit farmers. This article will provide a detailed explanation of the ripening period of apples and commonly used pesticides for preventing and controlling diseases and pests.
I. Ripening Period of Apples The ripening period of apples varies depending on factors such as variety, geographical location, and climatic conditions. Generally, the ripening period of apples mainly集中在 the following months: 1. Early-maturing varieties: End of July to early August, such as Gala, Qin Guan, etc. 2. Mid-season varieties: End of August to early September, such as Fuji, Hongxing, etc. 3. Late-maturing varieties: End of September to early October, such as Jonagold, Huang元帅, etc. It should be noted that the above time is only a general range, and the specific ripening time needs to be judged according to the actual situation. Fruit farmers can determine whether apples are ripe by observing their color, hardness, and taste.
II. Prevention and Control of Apple Diseases and Pests1. Disease Control The main apple diseases include - - disease, ring rot, (T-J) disease, etc. The following are commonly used control agents: (1) - - disease: 50% carbendazim wettable powder 1000 times solution, 70% - - thiophanate-methyl wettable powder 800 times solution, etc. (2) Ring rot: 80% mancozeb wettable powder 600 times solution, 70% - - thiophanate-methyl wettable powder 800 times solution, etc. (3) (T-J) disease: 75% chlorothalonil wettable powder 600 times solution, 50% carbendazim wettable powder 1000 times solution, etc.
2. Pest Control The main apple pests include apple leaf roller, apple woolly aphid, red spider, etc. The following are commonly used control agents: (1) Apple leaf roller: 2.5% brom** ester emulsion 3000 times solution, 10% lambda-cyhalothrin emulsion 2000 times solution, etc. (2) Apple woolly aphid: 40% omethoate emulsion 1000 times solution, 50% malathion emulsion 1000 times solution, etc. (3) Red spider: 20% pyridaben wettable powder 2000 times solution, 73% propargite emulsion 2000 times solution, etc. When controlling diseases and pests, fruit farmers should pay attention to the following points: 1. Reasonable crop rotation, avoid continuous cropping. 2. Strengthen fertilization and water management, improve tree vigor. 3. Timely removal of diseased and damaged branches and leaves to reduce the source of pathogens. 4. Timely spraying, seize the key period of prevention and control. 5. Use high-efficiency, low-toxicity, and low-residue - -, to ensure the safety of agricultural products. In summary, mastering the ripening period of apples and methods of disease and pest control is the key to improving the yield and quality of apples. Fruit farmers should scientifically manage according to the actual situation to ensure the healthy development of the apple industry.
The above is the full content of "When is the ripening period of apples and what pesticides are used," hoping to be helpful to green plant enthusiasts!