What are the common pests and diseases in banana cultivation?
What pests and diseases affect banana cultivation? Please give an introduction. To grow bananas, the following pests and diseases need to be controlled: Disease control 1. Bunchy top disease and mosaic heart rot. Both are caused by viruses, and there is no specific cure. Aphids are the main vector of transmission, so they must be controlled in time. Adding a plant growth regulator to the insecticide solution gives better results....
What pests and diseases affect banana cultivation? Please give an introduction.
Growing bananas requires controlling the following pests and diseases:
Disease control
1. Bunchy top disease and mosaic heart rot. Both are caused by viruses, and there is no specific cure. Aphids are the main vector of transmission, so they must be controlled in time. Adding a plant growth regulator to the insecticide solution gives better results.
2. Leaf spot, leaf blast, black sigatoka, and anthracnose. Banana leaf spot is the most important disease, so control should focus on leaf spot while also preventing other diseases. The best chemicals for controlling leaf spot are: Tilt, Shengzhifeng fungicide No. 1; mancozeb plus carbendazim also has a good control effect. At the seedling stage, mid-to-late vegetative growth stage, bud stage, bunch emergence stage, or early stage of disease onset, spray Shengzhifeng fungicide at 1000 times dilution 2-3 times, which can control leaf spot and also other diseases, with low medication cost. Before and after bunch emergence, if leaf spot is severe or the weather is hot and rainy, Tilt and Shengzhifeng fungicide should be used alternately (once every 10 days).
Pest control.
1. Banana weevil (pseudostem borer). April-May and September-October are the peak periods of occurrence. Effective chemicals: methamidophos, cartap, Chongman Shuangqi, Beinong Aifuding No. 1 (use according to the instructions). During the peak period, choose the above chemicals in the evening and spray from top to bottom along the pseudostem.
2. Aphids (banana aphid). The dry seasons of April-May and September-November are the dangerous periods. Aphids are the transmission vector of bunchy top disease and mosaic heart rot, so inspection should be strengthened. Effective chemicals: Yalike, Beinong Aifuxi No. 3, Keyaxing, Yibianjing, etc. Focus spraying on the suckers and the crown of larger plants where aphids are concentrated.
3. Banana leaf roller. Highly effective chemicals include Beinong Aifuding No. 3, and trichlorfon can also be used for spraying and killing.
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