The baby dish is a variety of Brassica chinensis, which has wide adaptability, reasonable close planting and annual production, which brings high economic benefits to the vegetable farmers. It is one of the famous special dishes with promotion prospects. However, the disease and insect pests of the dolls are the most troublesome.
1, baby food disease
1.1 virus disease with 20% virulence WP 400-600 times solution or 1.5% phytopathogenic 1000 times solution, virus gram emulsion 1000-1500 times solution alternately, or use 2% nymidine, 0.5% anti-toxic agent No. 1 spray control, spraying once every 10 days, used 2-3 times.
1.2 Soft rot with 72% agricultural streptomycin WP 3000-4000 times liquid foliar spray, spray once every 7-10 days, once every 2-3 times. In order to promote the formation of ball and prevent the occurrence of soft rot, it can be sprayed 2-3 times with the biological preparation Fengling during the rosette period to the ball-forming period, sprayed with 50g of water for 15kg, or 50g with 50g of water.
1.3 downy mildew with 58% toxic mycelium, manganese zinc wettable powder 600-700 times liquid or 64% anti-virus 矾 wettable powder 400-500 times liquid spray, spray every 6-10 days, once with 2 3 times, or spray with 72% Du Ke Ke Lu WP 500 times, spray once every 7 days, 2-3 times.
1.4 Anthracnose with 65% mancozeb WP 600 times solution or methyl thiophanate + chlorothalonil 80% anthrax Fumex WP 500-600 times solution, 40% aluminum triethylphosphonate WP 500- 600 times liquid, metalaxyl WP 800-1000 times liquid spray control.
2, doll dish pests
2.1 Locust with 蚜虱 蚜虱 蚜虱 350 350 350g / a fumigation, or with 20% cypermethrin EC 2000-3000 times liquid, 10% imidacloprid WP 1000-2000 times alternately sprayed with control, also available 5% cis-type fenvalerate The ester emulsifiable concentrate 2000-4000 times liquid or 50% phoxim emulsifiable concentrate 1000-2000 times liquid spray control.
2.2 Liriomyza sativae Blanchard (Vegetable Liriomyza, Brassica oleracea) is fumigated with smoked and smouldering agent 350g/mu. In addition, you can also choose 20% butyl thiocarbamate emulsifiable concentrate 1000-1500 times liquid or 40% green vegetable treasure, 1.4% power special micro emulsion 1500-2000 times liquid, 3.5% celecal 1000 times liquid, spot sneak eagle 2000 -2500 times liquid, 2.5% vegetable fly emulsifiable milk 1500-2000 times liquid, 20% more chlorpyrifos 2000-2500 times liquid and other medicines sprayed once every 7 days, used 2-4 times.
2.3 Snails are poisoned with 2% drought-dried snail bait or sprayed with 1% saline water. It can also be sprinkled with lime powder around the vegetable field.
2.4 In the occurrence period of Plutella xylostella adults, black light is used to trap moths; larvae are harmful, using 1200-1500 times of 50% phoxim emulsifiable concentrate or 1000% of chlorpyrifos 1000 times, 20% of sterilized emulsifiable concentrate 2000-3000 times Liquid, 10% of emulsifiable concentrate 500-3000 times liquid, 2.5% vegetable hi-suspension 1500-2000 times liquid, 5% pyrethrin emulsifiable concentrate 1000-1500 times liquid, 2.5% Uranus emulsifiable concentrate 1000-1500 times liquid, 5% agricultural dream Special 1 cut liquid spray control.
2.5 Lai worms are sprayed with 0.5% vegetable and fruit net 1000 times solution or 2.5% kungfu emulsifiable oil 2000 times solution, bacillus bacillus and other biological agents, and sprayed once every 7 days.
3. Physiological diseases of baby food
Such as heartburn, also known as dry heartburn, according to the growth of the plant, timely use, appropriate amount of 200g of ferrous sulfate to 15kg of water, spray on the sunny afternoon leaves, spray again 20-25 days before harvesting.
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