Integrated control techniques of wheat diseases and insect pests

There are many kinds of wheat diseases and insect pests, and the damage period is long. In the prevention and control, we should adhere to the plant protection policy of "prevention first, comprehensive control", strengthen the prediction and forecast of diseases and insect pests, grasp the initiative of pest control, and take agricultural control as the basis. Focus on the control of wheat sheath blight, scab, powdery mildew, sucker worms, ear aphids, and other diseases and pests In order to protect natural enemies and reduce the damage of diseases and insect pests, the following technical measures should be taken to select pesticides with high efficiency, low toxicity and low residue to reduce the frequency and dosage of pesticides.

Rejuvenation and jointing stage

Mainly to control wheat sheath blight, but also to treat other diseases and pests. After the wheat turned green, control it with 12.5% chloramphenicol 200 ml or 20% kaigangmycin powder 40 grams plus water 40 kg per mu, and spray 0.5 kg of Hekuling or 25% triamcinolone 0.5 kg to 10 kg of water at booting stage, which can effectively control sheath blight, powdery mildew and rust, etc., in dry stubble wheat area, use 2.5% ethyl enemy powder 1.5 kg, add fine soil 20 kg, mix evenly on the ground. And immediately hoe to kill wheat, trematodes larvae.

Heading and flowering stage

Mainly to control wheat scab. Wheat scab is a typical climate disease. Due to widespread bacterial sources and lack of resistant varieties, the temperature is above 1 degree Celsius and there are 3 consecutive days of overcast or ten-day rain more than 5 days. 50% carbendazim wettable powder or 70% methyl thiophanate or 540% ethyl thiophanate 100kg of water should be sprayed on 100kg of water immediately before rain or between rain stops. To prevent infection.

Wheat filling stage

Attention should be paid to the control of aphids, and it is better to choose insecticides with high efficiency and low toxicity, such as imidacloprid, paracetamol, dioxin and so on.