Radish diseases are mainly viral diseases and black rot. Virus disease has so far no specific agents, the main approach is to cure warts and prevent high temperature and drought. Black rot is a disease caused by black rot fungi. The main symptoms are darkening of the center of the roots and black rot of the vascular bundles of the fleshy roots. The bacteria passed winters on the seeds and diseased plants and was transmitted by rainwater insects. Disease-resistant varieties should be selected, generally light green radish, white radish weight, can also be used 50 °C warm soup soaking for 30 minutes, or Fumei double 100 times liquid soaking 2 hours, can be sprayed with 800 times liquid Daimon ammonium and so on. In addition, there are soft rot, downy mildew, white spot disease, etc., mainly through the selection of disease-resistant varieties, deep sorghum sorghum, water control and pest control and other comprehensive measures. Radish pests include yellow striped hops, small ground tigers, cabbage worms (white cabbage larvae), and borers (vegetative larvae). Yellow stripe beetle adults can be used 90% trichlorfon 1000 times to fight drug control, larvae can be used after irrigation and irrigation with the above liquid. Small tigers can be sprayed with 20% methionine emulsion at 8 000 times, and can also be trapped and killed by grass. The leaves are broken and sprayed with 90% crystals to make dipterex 400 to 500 times. The insecticidal effect is very good.
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