How to control aphids when planting cotton?
How to control aphids when planting cotton? Please introduce control methods for planting cotton to control aphids, including spraying omethoate on overwintering hosts to eliminate aphids on overwintering hosts. The methods of controlling aphids in cotton fields are as follows: 1,3% acetamiprid 1000 to 2000 times liquid spray per mu. 2,5% hit 2500 to 4000 times liquid spray per mu. 3, 10% Sipokai 30 to 50 milliliters per mu, diluted 2000 times liquid spray. 4. 10% imidacloprid is 10 to 20 grams per mu and 50 to 60 kilograms of water is sprayed. In addition, due to the increasing temperature variation in late April, rainfall and continuous low temperature weather, cotton blight has occurred on plastic film cotton in some districts and counties of the city. Cotton farmers should also pay attention to the occurrence of cotton seedling blight, anthrax and other diseases while eliminating cotton aphids, and pay attention to timely control. Click to get more cotton planting techniques click to get more pesticide application techniques click to get more pesticide application techniques
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How to control aphids in corn field?
How to control aphids in corn field? Please introduce the method of corn aphids commonly known as greasy worms and honey worms, which not only harm corn, but also harm sorghum, barley and other crops. It pierces the plant sap, the number of aphids in seedling stage is very small, and the number of aphids in panicle stage increases sharply, secreting a lot of honeydew, forming a layer of black mildew on the leaves, affecting light.
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What should agricultural ammonium bicarbonate pay attention to when it is used?
What should be paid attention to when agricultural ammonium bicarbonate is used? Please introduce the application of agricultural ammonium bicarbonate should pay attention to the following points: 1, ammonium bicarbonate can not be mixed with alkaline fertilizer to prevent nitrogen volatilization, resulting in nitrogen loss. 2. Avoid foliar spraying. Ammonium bicarbonate is highly corrosive to crop leaves.
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