What medicine is good for pear psyllid, and what pesticide is used for pear psyllid?

The control of pear psyllids is good with the following medicines:

The control effect of imidacloprid wettable powder 2500 times, 20% acetamiprid wettable powder 3000 times, and 5% cyhalothrin microemulsion 2000 times had poor control effects on pear psyllid nymphs.

The control effect of 8% avermectin EC 3000 times on pear psyllid nymphs was high, and the control effects of 1 day, 3 days and 5 days after the drug were7% and.

The prevention effect decreased to % at 7 days and 14 days after the drugThe control effect of spiroworm ethyl ester suspension agent for the control of pear psyllid nymphs is sluggish, and the drug consequence is more than 95% after 3000 times of liquid, 4000 times of liquid, and 5000 times of liquid 5 days after treatment, and the effective period is more than 14 days.

3. Because pear psyllids often overlap generations, and the three insect states of adults, nymphs and eggs coexist, the drug control effect with a long duration is outstanding. Considering comprehensively, the control effect of 3000 times, 4000 times and 5000 times of spiralworm ethyl ester suspension on pear psyllid nymphs was better than that of avermectin emulsifiable concentrate 3000 times.

It is recommended to use 5000 times of spiral ethyl ester suspension to control pear psyllid nymphs in production, and use drugs in the peak period of the first generation of nymphs or the period when nymphs are dominant after the second generation.

Hello! When most of the pear blossoms are about to fail, the leaves have been 3000-4000 times with 24% spiroxadex ester suspension, and the whole plant is evenly sprayed, and it is basically controlled after one year.

Because pear psyllids have mucus.

So additives need to be added.

Potion Avi can.

When the pear tree germinates, it is muwante, but it is high, and under normal circumstances, it is enough to choose avermectin.

Summary. Hello! Pear psyllids can be controlled with avermectin, spiroethyl ester, pymetrozine, nicotine, matrine, avi mineral oil emulsifiable concentrate and other drugs, and it is best to use them in turn to avoid drug resistance.

This pest is a common pest, mainly harming pear trees, strong reproductive ability, when found, it is necessary to treat it with medicine in time, so as to avoid aggravation of pests and hinder growth.

Hello! Pear psyllid can be controlled with avermectin, spiromel ethyl ester, pymetrozine, local simple nicotin, matrine, avi mineral oil emulsifiable concentrate and other drugs, and it is best to use them in turn to avoid drug resistance. This insect is a common pest, mainly harming pear trees, strong reproductive ability, when found, it is necessary to use medicine in time to treat it, so as to avoid the aggravation of insect pests and hinder growth.

At this time, the pear psyllid is not effective in fighting avermectin, and the pear psyllid is very serious.

For pear psyllids in the previous year, the pear tree with serious damage and large base can be sprayed again after a week of staring, and choose a drug that kills both adults and eggs, such as 300 times Baode, or 10% imidacis 6000 times the liquid, or 5% Rifling 3500 times the liquid and sells it higher.