咋防枣枣树心心虫

S. carotovora occurs one to two generations a year, and the mature larvae in the trees under the soil cover the winter. Around the beginning of the second year of June of the following year, soil was gradually unearthed, and sooner or later, the excavation was greatly affected by the rainfall or the pouring of land, and the amount of rainwater emerged quickly and neatly. Unearthed larvae crawl and phlegm in soil gaps, crevices, and weeds in the rhizosphere several hours after crawling on the ground. The tenancy period is 10-15 days. After the emergence of adult copulation spawning. After hatching, the larvae mostly invaded from the top and middle of the jujube fruit. The time for fruit breaks in different regions varies greatly, generally from late July to early September. The larvae are aged within about 17 days after being harmed in the fruit, and then de-fruiting and pods or cicadas overwinter. The key to the prevention and treatment of borer pests is the combination of spraying under the trees to control overwintering larvae and pupae, and scientific spraying of trees to avoid larvae and pods. The use of Peach Sex Lure to trap adult worms, starting from June, hung a trap per acre. According to the sex sensor, timely spraying. When the first male moth is found, the overwintering larvae will be excavated at the height of the soil and can be controlled on the ground. The canopy can be sprayed with 50% phoximidine EC 200 times or 48% chlorpyrifos (Dongyong) EC 300-500 times. The peak of moth trapping is about 7 days. It is the best time to spray on the trees. Generally from mid-July to early August, it can spray 48% chlorpyrifos (Dongyong) EC or WP 1200-1500 times, 25% cyanogen chloride. Chlorpyrifos (Haobandan) EC 800-1000x, 90% Methoven (Qing Ling) Soluble Powder 4000-5000x, 4.5% Beta-cypermethrin (Tianlongbao) Emulsifiable concentrate or water emulsion 1500-2000 times, 2.5% Lambda-cyhalothrin EC 1500-2000 times, 2.5% deltamethrin 3000 times, 25% insecticidal 1000 times, or peach Xiaoling 1000-1500 times. In addition, from the end of July, once every 3-4 days pick up and fall and wind date, to eliminate the larvae in the fruit. In the late autumn and early winter, when the tree tray is turned over to freeze over part of the overwintering larvae in winter, the damage in the coming year can be effectively reduced.

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