Spring is a critical period for wheat growth, and it is also a frequent occurrence of diseases and insect pests. Therefore, attention should be paid to the prevention and control of pests and diseases in wheat spring management. Several common wheat pests and diseases in spring and their prevention and control methods are described below:
Wheat rust and powdery mildew: In areas where the disease is serious and the epicenter is obvious, it is necessary to fight drugs in time to control the spread. Use 15% of triadimem 40-50 grams per acre, add 10-12 kilograms of water, and use a motorized sprayer to fight drugs. Wheat leaves within 2-4 meters. If the spraying is later, the dosage per acre can be increased to 60-70 grams.
Fusarium head blight: after onset, it must be smashed and controlled. Use 80% carbendazim powder 25g per mu, or 40% carbendazim gel 50g, and fight once in the flowering period. Give 1 more medicine.
Wheat bran: When the amount of wheat bran is more than 500 per 100 ears, and the ratio of beneficial insects to wheat bran is more than 1 to 100, 10 grams of 10% imidacloprid per acre is used, and 10 kg of water is sprayed, which is harmless to natural enemies. It is also possible to use 40% omethoate, 30 ml/mu water, 10 kg spray.
Wheat spider: Wheat spiders inhabit more than the wheat roots during the day. Watering after 9 pm can drown it. When investigating a 33 cm double row wheat spider with more than 200 heads, there may be 80% dichlorvos, 10 20 ml/mu water and 10 kg water spray. Can also be used to sweep the net, red and white killing and other killing pesticides like water spray.
Wheat midge: The midge usually lives in the soil and short-term damage to the wheat. In late April, 50% phoxim or 40% methyl ethyl thiophosphoric acid can be blended with 250 grams per mu to achieve a control effect of 90%.
Wheat rust and powdery mildew: In areas where the disease is serious and the epicenter is obvious, it is necessary to fight drugs in time to control the spread. Use 15% of triadimem 40-50 grams per acre, add 10-12 kilograms of water, and use a motorized sprayer to fight drugs. Wheat leaves within 2-4 meters. If the spraying is later, the dosage per acre can be increased to 60-70 grams.
Fusarium head blight: after onset, it must be smashed and controlled. Use 80% carbendazim powder 25g per mu, or 40% carbendazim gel 50g, and fight once in the flowering period. Give 1 more medicine.
Wheat bran: When the amount of wheat bran is more than 500 per 100 ears, and the ratio of beneficial insects to wheat bran is more than 1 to 100, 10 grams of 10% imidacloprid per acre is used, and 10 kg of water is sprayed, which is harmless to natural enemies. It is also possible to use 40% omethoate, 30 ml/mu water, 10 kg spray.
Wheat spider: Wheat spiders inhabit more than the wheat roots during the day. Watering after 9 pm can drown it. When investigating a 33 cm double row wheat spider with more than 200 heads, there may be 80% dichlorvos, 10 20 ml/mu water and 10 kg water spray. Can also be used to sweep the net, red and white killing and other killing pesticides like water spray.
Wheat midge: The midge usually lives in the soil and short-term damage to the wheat. In late April, 50% phoxim or 40% methyl ethyl thiophosphoric acid can be blended with 250 grams per mu to achieve a control effect of 90%.
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