Wheat midge small enough to check the harvest

Wheat midge is a devastating pest that seriously threatens the safety of wheat production. The larvae use larvae to lubricate the sap of the wheat granules that are being grouted in the larvae or damage the sap, causing pods and empty shells to reduce their production. In severe cases, they can cause no harvest. The worm body is small, hidden and difficult to find, easy to miss the appropriate period of prevention and control, strong technical control. According to monitoring, it is expected that the wheat midge will occur moderately this year, and individual plots will be severe. In order to effectively control the harm of wheat midge, we should adhere to the principle of "main attack period, adult eradication", use appropriate effective prevention and control techniques, and timely use of drugs to prevent and control.

First, the prevention and control of the flood season Every plot has two or more plots per plot, must be used to prevent and control soil poisoning methods. In general wheat in the booting stage (flag-shooting period) is a large number of wheat midge insects, available 5% chlorpyrifos powder per acre of 0.6 to 0.9 kg, and 20 to 25 kg of fine sand mixed, evenly spread on the ground, can kill A large number of insect pests and embryos that died of eclosion were killed.

Second, the adult stage of prevention and control of the adult pest control period 10 complex network of more than 20 insects or hand splitting Mai ridge one can see 2 to 3 adult land plots should be timely spraying control. When wheat is heading, it is the period when the midge emerges from a large number of feathers. When 70%-80% of the whole wheat is heading in the whole field, 40% dimethoate 50g 50kg water, or matrine 20g water 40 -50 kg evenly sprayed on the wheat field, can kill a large number of wheat midge adults, and can also treat wheat aphids. If you add 15% triadimefon WP per acre 60 grams, 50 kilograms of water, you can also treat wheat powdery mildew.

Third, pay attention to a serious land plot should pay attention to flood control and adult control of organic combination. 2 When mixing toxic soils, pesticides and sand should be mixed as much as possible. 3 Watering in the unirrigated wheat field and timely watering can increase drug efficacy. 4 Do not use poisonous soil to spread poison when spreading poisonous soil. Use poisonous soil on the wheat leaf to cause poisonous soil to fall on the ground by means of brooms, pull ropes and other devices. 5 adult control must pay attention to clear sunny days before 10 o'clock in the morning or after 5 o'clock in the medication, try to avoid light at noon, wind and rain. 6 spray evenly when spraying, do not arbitrarily reduce the amount of water. 7 Workers should take protective measures and pay attention to medication safety.

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