Various uses of washing powder

There are different methods of application of laundry detergent pesticides. 1. Separate application: When controlling pests such as aphids, whiteflies, red spiders, cabbage worms, inchworms, and moths, use washing powder 900~1000 times to spray the back of leaves and twigs, about 1~2 hours, the mortality rate That is, to prevent and control scale insects, green peach aphid and other pests, spray 500~700 times of liquid, spray once every 3 days, spray 3 times continuously, the insecticidal rate can reach 94%~99.4%. 2. Mixed with urea: The liquid prepared by this method is commonly known as urine-washing mixture; not only has good insecticidal effect, but also may play the role of top dressing outside the root. The preparation method is as follows: use 0.5 kg of washing powder, 2 kg of urea, and 200 kg of water, and dissolve it after mixing; when using, spray 50-100 kg each. This method is mostly used to control aphids, cabbage worms, red spiders, etc. on cotton, vegetables and flowers; because urea has the effect of destroying the amount of tin in insects, it is better than using washing powder alone. 3. Mixed with diesel oil: it is mixed with diesel oil and washing powder; it is a firewood washing emulsion; it has strong penetration and contact killing effects, and has special effects on various pests such as whiteflies and scale insects. The preparation method is as follows: first dissolve 0.5 kg of washing powder into a thin paste with 1.5 kg of purified water, and heat 2.5 kg of diesel oil to 60-70 ° C in water, and then slowly pour it into the washing powder paste liquid, while adding edges. After stirring, spray it into another container with a sprayer to make it fully emulsified, and it can be used after diluting with water. 4. Mixing with oil: first dissolve 1 part of washing powder with 2 parts of water, then add oil equivalent to 1/20 of the total amount of washing powder and water, stir evenly, and leave it for 1 hour to form the mother liquor; use 150~100 in winter and early spring 200 times of liquid, 200 to 300 times of liquid spray in summer and autumn, the effect of preventing and controlling red spiders can reach more than 98%.

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