Now in the winter, it is the season of carrot sales. In order to improve the yield of carrots, it is essential to control carrot pests and diseases. Let's take a look at the prevention and control of carrots and pests with the Xiaobian of the pesticide network .
Common diseases of carrots include black spot disease , black rot, and bacterial soft rot. The main pests are underground pests, mites, and root mites. To effectively control these diseases and insect pests, the following points must be achieved.
In the prevention and treatment of black spot and black rot, select excellent varieties, rational layout, rotation for cropping, increase of organic fertilizer, cultivating and weeding, breeding seedlings without pests and diseases, and reducing the number of pests and diseases. Soaked in warm soup, seed dressing with 70% mancozeb with 0.3% seed. In the early stage of the disease, use 75% chlorothalonil WP 600 times solution, or 50% keering WP 1500~2000 times solution, or 50% chlorhexidine WP 1000~1500 times solution spray, about 10 days Spray once, continue to prevent 2 to 3 times, stop taking the drug 15 days before harvesting.
In the prevention and control of bacterial soft rot, high ridge cultivation was adopted, and the diseased plants were found to be excavated in time, and lime was sprinkled, and sprayed with neomycin phytomycin 400 times solution or 72% agricultural streptomycin WP 400 times.
Underground pests, golden worms, etc. are treated with 50% phoxim 2500-3000 times liquid or lesper 2000 times liquid. The aphids were controlled with 5% worm and 10% imidacloprid 1500 times. During the occurrence of adult worms, it can be sprayed with 2.5% enemy killing emulsifiable concentrate 3000 times, sprayed once every 7 days, and sprayed 2 to 3 times; larvae occur with 7.5L/hm2 or 40% sulphur Phosphorus 15L/hm2 was irrigated with watering.
For more information on pests and diseases, please pay attention to the pest and disease column
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