Prevention and cure of diseases, pests and weeds in wheat in early spring
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The main diseases and methods of wheat control are: Sheath blight as a key control object in early spring wheat fields, generally available 5% jinggangmycin 100 ~ 150 grams per mu, or 20% tetracycline 40 ~ 50 ml, or 50% acetaminophen 300 times liquid spray, control 2 times, can better control the disease. Rust can generally be used 20% Trifenin EC 30-50 ml per mu, or 12.5% ​​Sphinx per mu 15 to 30 grams, add water evenly spray. Powdery mildew can generally use triadimefl 35 to 50 grams per mu, add water spray control. Fusarium head blight usually uses 40 to 50 grams of carbendazim per acre for wheat at the heading stage, and evenly sprays wheat on the water. The main pests and methods for controlling wheat are: Aphids In general, the largest number of aphids occurs during grain filling. When the number of 100 aphids in this period exceeds 500, timely prevention and treatment should be conducted. 40% omethoate emulsifiable concentrate 40ml or 2.5% emulsifiable EC 10 ~ 13ml per acre can be used to evenly spray the water. One week after the spraying, pay attention to the inspection results. If there are more locusts, they should be treated again and again. Wheat spiders can use 40% dimethoate emulsion 1000 times before and after noon to spray when wheat spiders are at their worst. Wheat weed control methods and methods are: broadleaf weeds available herbicides 2,4-Dibutyl, 2 A, 4-Chloride, Benzonsone, superstar, Baicao enemy, metsulfuron-methyl, wheat straw net and so on. The herbicides available for grass weeds include humming horses, shamrock spirits, Xinyan spirits, oatmeal spirits, herbicide-killing dan, and Da Zhuang. Broad-leaved weeds and grass weeds can be used to control the combination of green Mailong, chlorsulfuron, metsulfuron, isoproturon, Li Gulong, Praxanthin and Putian net.