First, the urine wash mixture insecticide
250-500 grams of urea per mu, plus 100 grams of washing powder, 50 kilograms of water, mixed and sprayed, can control pests such as red spiders and aphids in fruit trees, crops and vegetable gardens, and control the effects of red spiders up to 90 About %, the effect of controlling mites can reach more than 95%. Not only pollution-free, but also topdressing.
Second, fertilizer mixed insecticide
The combination of fertilizer and pesticide is extremely powerful. For example, when using 1% urea solution for root external application, add 0.1% concentration of 50% dichlorvos EC or 40% stearin EC to spray, and control the red spider on cotton and flower to 92. %-96%, the control effect on aphids can reach more than 98%, and other pests can be treated.
Third, the grass and ash liquid insecticide
Use 10 kg of grass ash to water 50 kg, soak for 1 day and night, take the filtrate spray, can effectively control fruit trees, crop aphids, and can enhance the lodging resistance of crops and the wind resistance of young fruit trees.
Fourth, silicon calcium fertilizer insecticide
Silicon-calcium fertilizer is a new type of fertilizer. When the crop is fertilized, it can be applied or mixed with silicon-calcium fertilizer. After the crop is absorbed, the silicon will accumulate in the epidermal cells of the crop, forming a very hard skin layer, making it difficult for the pest to invade. To enhance the resistance of the crop. Applying 30-40 kg of siliceous calcium fertilizer per acre can greatly reduce the harm of armyworms to corn, sorghum, soybeans (soybeans) and kidney beans.
Five, nitrogen fertilizer insecticide
The three nitrogen fertilizers, urea, ammonium bicarbonate and ammonia, have certain volatility and have certain stimulating, corrosive and fumigating effects on pests, especially for small spider mites, spider mites and aphids, and weak resistance. The pests are especially effective. When the pest occurs, use 2% urea solution, 1% ammonium bicarbonate solution, or 0.5% ammonia solution to spray the roots, spray once every 7 days, even spray 2-3 times, Effective control of pests.
Source: Hebei Agricultural Network
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