What are the pesticides used to control whitefly? Vegetable whitefly control agent Bemisia tabaci co

1.Physical control.

Whiteflies have a strong tropism to yellow, especially orange-yellow, and yellow plates can be set up in the greenhouse to trap adults. Set 25-30 sheets per acre, placed at the same height or slightly higher than the plant. After 7-10 days, replace when the yellow plate is full of worms or the stickiness of the swatch is reduced.

2.Biocontrol.

Release natural enemies such as aphid wasps and ladybugs into the greenhouse to achieve the purpose of "treating insects with insects".

3.Pharmaceutical prevention and control.

In the early growth of cucumbers and tomatoes, when whiteflies first appear in greenhouses, cyantraniliprole 10% dispersible oil suspension milliliter mu spray control can be used, and then sprayed once every 7 days after recurrence, with a safety interval of 3 days. At the same time, pay attention to the selection of snail thiamloprid 22% suspension 30-40 ml mu (safety interval of 3 days). It can also be smoked with 3% cypermethrin aerosol agent, 300-400 grams per mu.

In order to enhance the effect of the potion, it should be used alternately.

<> whitefly can damage almost all vegetables, with cabbage, cauliflower, tomatoes, eggplants, zucchini, cucumbers, melons and beans being the most affected. The harm of whitefly to host crops such as vegetables is mainly manifested in three aspects: first, adults and nymphs swarm on the back of vegetable leaves with a lack of litter to suck sap, which makes the leaves yellowish and affects plant growth.

The second is the secretion of honeydew, which induces coal pollution disease, affecting leaf photosynthesis and fruit quality. The third is the transmission of viral diseases. At present, the pesticides recommended by the Ministry of Agriculture to replace highly toxic pesticides for the control of vegetable whitefly are imidacloprid and bifenchrysanthemum.

1. Imidacloprid: the main dosage forms include lo% imidacloprid wettable powder, 5% imidacloprid emulsifiable concentrate, etc. To control vegetable whitefly, use 2o grams of lo% imidacloprid wettable powder or 4oml of 5% imidacloprid emulsifiable concentrate per mu at the beginning of the peak of whitefly occurrence, and spray with 3o-4o kg of water.

2. Bifenthrin: It is an insecticide that kills pyrethroids and kills this mite, which has the effect of contact killing and stomach toxicity, no systemic and fumigation effects, and has a wide insecticidal spectrum and rapid effect. It does not move in the soil, is safe for the environment, and has a long effective life.

It is suitable for the prevention and control of lepidopteran pests, whiteflies, aphids, leafhoppers and other pests and leaf mites on cotton, tea trees, fruit trees, vegetables and other crops. The main dosage forms are 4% bifenthrin EC, LO bifenthrin EC, bifenthrin EC, l% bifenthrin EC, etc. To control vegetable whitefly, use 4% bifenthrin EC l9ml, or LO bifenthrin EC, or 3OML of bifenthrin EC, or 75ml of l% bifenthrin EC per mu at the beginning of the occurrence of whitefly, and spray with 5o to 75 kg of water.

Summary. Lice mite urea cannot be mixed with alkaline pesticides. Other precautions for use are as follows:

1. Rain within 2 hours after spraying will not have much impact on the efficacy. 2. If there is a strong wind in a short period of time or it is expected to rain within 1 hour, it is not advisable to spray the drug. 3. To control citrus leaf miner moth and rust tick, the drug should be used up to 2 times per quarter, with an interval of 28 days.

To control apple leaf moth, the drug should be used up to 3 times per quarter, with an interval of 14 days. To control potato tuber moths, the drug should be used up to 3 times per season with an interval of 28 days. For the prevention and control of cotton bollworm, more drugs should be used twice a quarter, with an interval of 28 days.

Kale, use up to 3 times per season with a 14-day safe interval. Leeks, use up to 1 time per season, with a safe interval of 14 days. 4. It should not be used in paddy fields, and cannot be used in aquaculture areas and near ponds, rivers and other waters.

No. Insecticidal range: It can be used to control beet armyworm, Spodoptera litura, Spodoptera exigua, diamondback moth, cotton bollworm, pod borer, melon silk borer, tobacco green worm, leek maggot, thrips, rust mite, citrus leaf miner moth, mold high shooting Nianxiao planthopper and other pests.

Applicable crops: It can be used for corn, vegetables, citrus, cotton, potatoes, grapes, soybeans and other crops. Lice mite urea generally cannot be mixed with alkaline pesticides.

Lice mite urea cannot be mixed with alkaline pesticides. Other precautions for slowing down aging are as follows: 1. Rain within 2 hours after spraying will not have much impact on the efficacy.

2. If there is a strong wind in a short period of time or it is expected to rain within 1 hour, it is not advisable to spray the drug. 3. To control citrus leaf miner moth and rust tick, the drug should be used up to 2 times per quarter, with an interval of 28 days. To control apple leaf moth, Zheng Duo used 3 times per season at the earliest, with an interval of 14 days.

To control potato tuber moths, the drug should be used up to 3 times per season with an interval of 28 days. For the prevention and control of cotton bollworm, more drugs should be used twice a quarter, with an interval of 28 days. Kale, use up to 3 times per season with a 14-day safe interval.

Leeks, use up to 1 time per season, with a safe interval of 14 days. 4. It should not be used in paddy fields, and cannot be used in aquaculture areas and near ponds, rivers and other waters.

Is it harmful to smoke?

What kind of smoke are you talking about.

Flue-cured tobacco in the field, cloud smoke 100

Smoking? Well, is there a way to remedy the smoke of this drug?

Hello, the best thing to do is to let it rain and let the rain wash the medicine down.

It's been a day or two, and the dark spots are appearing, is it okay to rain now? Are there any other remedies?

There is currently no antidote to this medicine.

The best time to intervene should be within two hours of the application, when the drug has not penetrated into the leaves.

It's all absorbed now.

Thank you, will there be a better chance after the cigarette? Is there really no other way? Thanks again for your help.

This depends on the degree of absorption of the drug by the smoke, I just talked about my personal experience, you can also go to the pesticide store to ask if there is any other way.

(1) Feeding on plant sap, which leads to plant weakness.

2) The secretion of honeydew pollutes plant products, induces coal pollution disease, and hinders plant photosynthesis.

3) Spread more than 70 kinds of plant viruses and cause plant diseases.

4) Cause a variety of plant physiological abnormalities.

The whitefly, also known as the small moth, harms a variety of crops, mainly fruit trees, vegetables, and greenhouses. Similar to whiteflies are whitefly, planthopper, planthopper, etc.

The control can be used alternately with bitter pine, thiamethoxam, dimidoxamin, acetamiprid, aphid lice, imidacloprid, avermectin, etc. Respray once or twice every 5-7 days.