Fenvalerate is suitable for pest control of cotton, fruit trees, vegetables and other crops. Fenvalerate has a wide spectrum of insecticides and is non-selective to natural enemies. It is mainly used for contact and stomach toxicity, and has no systemic and fumigation effects. Here is a brief introduction to the use of fenvalerate.

When it comes to the use of fenvalerate, it depends on what crops are used for fenvalerate. The following pesticides are used to list the use of fenvalerate according to different crops:

1. Control of cotton pests The cotton bollworm is applied before the egg hatching period and the larvae buds, and sprayed with 25-50ml of water per acre. Cotton bollworm can also be effectively controlled at this concentration during egg incubation. At the same time, it can treat both red spiders, small bridge insects, gold steel drills, leaf curlers, thrips, blind mites and other pests. Cotton aphid with 10% emulsifiable concentrate 10-25ml per acre, increase the dosage for Fuxi.

2. Control of fruit tree pests The citrus leaf miner is applied at the initial stage of new shoots in each season, and sprayed with 5000% emulsifier at 5000-8000 times. At the same time, it also treats tangerines, leaf moths, hibiscus and so on. The citrus scale insect is sprayed with 20% emulsifiable concentrate 2000-4000 times during the egg incubation period.

3, the control of vegetable pests, the 2-3 instar larvae of the cabbage caterpillars, the application of pesticides, 20-25ml per acre with 20-25ml. Plutella xylostella was controlled with 20% emulsifiable concentrate 15-30 ml/mu before the 3rd instar.

4. Prevention and control of tea tree pests Tea cockroaches, tea caterpillars, and green thorn moths were applied before the 3rd instar larvae, and sprayed with 20% emulsifiable concentrate 4000-8000 times. The tea green moth and black thorn powder are sprayed at a peak of nymphs and sprayed with 4000% to 8000 times of 20% emulsifiable concentrate.

5. Prevention and control of soybean pests The feeding of the heartworms in the flowering stage of soybeans and the peak period of egg hatching, 20-40ml of 20% emulsifiable concentrate per acre can effectively prevent the poisoning of pods, and at the same time treat locusts and tigers.

6. Prevention and control of wheat pests The control of wheat mites, armyworms, in the occurrence of wheat bran, and the larvae of 2-3 instar larvae are applied with 30% emulsifiable concentrate 3000-4000 times.

In addition to different crops, it is divided into different pests. For different pests, the method of using fenvalerate is different. The following are the methods for using fenvalerate listed according to different pests:

1. Control the jujube tree, apple and other fruit trees of the peach heartworm, pear small heartworm, thorn moth, leaf curler, etc. During the adult spawning period, spray 3000 times 20% fenvalerate emulsifiable concentrate before the hatching larvae +1000 times fruit tree special type "Tianda 2116", can kill eggs, larvae, prevent capsules, the residual effect period can be maintained for 10-15 days, the fruit preservation rate is high.

2, prevention and control of moths, leaf moths, etc., in the early stage of larvae mites, spray 2000-3000 times 20% fenvalerate EC + 1000 times fruit tree-specific "Tianda 2116" liquid, insecticidal and leaf-preserving effect is good, but also Treating mites, hibiscus, etc.

3, prevention and control of spider mites, leaf miner, etc., in the early stage of adult spawning, spraying 4000-5000 times 20% emulsifiable liquid, the insecticidal and leaf-preserving effect is good.

4, prevention of jujube trees, apples and other fruit trees, such as leaf-eating pests, larvae, canopy caterpillars, apple hawk moths, etc., when the young larvae are in the period of concentration, when concentrated, spray 20% emulsifiable concentrate 2000-5000 times.

The method of using fenvalerate is introduced here. I believe everyone will understand it after reading it.

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