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High chlorine. thiamethoxam clothianidin + emamectin salt. Pyripropyl ether has an effective period of about 15 days.
This formula is a combination of pyrethroid insecticides and nicotinic insecticides, cypermethrin has a contact killing effect on thrips, thiamethoxam or clothianidin, which belongs to neonicotinoid insecticides, the effect of internal gastric toxicity is more obvious, and the tube is long; Emamectin benzoate. Pyripropyl ether is efficient in killing eggs, and the direction of registration is thrips! 30% high chlorine is recommended.
thiamethoxam 500-800 times + 20% emamect. Pyridyl ether 1000 times spray!
Spiroethyl ester. Dinotefurin + spinocidin + propyl ether. The cost of this formula is also high, a bucket of water reaches 15-20 yuan, and the validity period is about 15 days. 30% snails are recommended. Dinotefuran 1000 times + 5% spinocidin 1500 times spray.
I am optimistic about this formula, snail ethyl ester has strong systemic properties, two-way conduction in the plant, and has a good insecticidal effect; dinotefuran has obvious effects on contact killing and stomach toxicity; The killing effect of spinomycin**-resistant thrips is good; Pyripropyl ether kills eggs, and the four are matched, and the eggs are killed.
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Thrips are formulated with the following specific insecticides:
1.50% Fluridine spiroesterin water dispersible granules: This formula has a two-way conduction effect, with 10-15 grams per mu, sprayed evenly, which can quickly control the harm of aphids, whiteflies, whiteflies, thrips and other pests, and the effective period can reach more than 30 days.
2.60% Fluoropyridine thiamethoxam water dispersible granules: this formula has stomach toxicity and contact killing effect, after application, it can be absorbed by crop roots or leaves more quickly, and has strong permeability in the plant body, with 5-6 grams per mu, 30 kg of water, uniform spraying, good control effect on aphids, whiteflies, thrips and other pests, longer effectiveness, and good rain resistance.
3.40% fiprofen ethyl polysine dispersible granules: This formula can control aphids, planthoppers, diamondback moths and other crops on the stinging and sucking mouthparts and chewing mouthparts pests, with 10-14 grams per mu, mixed with 30 kg of water evenly sprayed.
Please note that when using any insecticide, it is important to observe safe practices to avoid harm to humans and the environment.
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Deltamethrin, imidacloprid.
Acetamiprid or cypermethrin can be used for thrips.
Kill completely. The prevention and control methods are as follows:
1. Adjust the medication: It is a very light-sensitive insect, and it will drill out at night to harm the plant, so the spraying should be in the evening, and the effect of spraying at this time will be much better.
2. Medication method: When spraying drugs, spray the plants evenly first, and then spray some on the ground, so as to avoid it from climbing onto the plants.
3. Add sugar.
4. Pay attention to prevention: In the process of crop planting to flowering, it should be prevented by using pesticides in time, and its phototaxis can also be used to hang blue plates, which can also reduce its damage to crops in the later stage.
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Thrips special insecticide formula: 25 thiamethoxam (Actet) avermectin, and at the same time with ethyl spinosamad, acetamiprid, spiromethane, imidacloprid, bifenthrin, thiamethoxam, ethyl spinosam, imidacloprid silicone, spinosad, deltamethrin, silicone (or brown sugar), etc.
During the thrips migration season, the use of a scale-free de-densification insect net can prevent thrips from entering the shed. Thrips are small in size, and generally insect nets with an aperture of more than 1 mm have a poor blocking effect on thrips, so the vents of the shed can be covered with more than 60 mesh insect nets.
Using the thrips' tropism to the blue, the blue plate can be hung for booby-trapping, and the height of the blue sticky insect plate should be close to the young part, that is, near the growth point Qingnai. Note that the 25 cm 40 cm blue sticky insect board is hung with about 25-30 pieces per mu.
At certain intervals, take frequent watering and raise the temperature of the shed to keep the air humidity and soil moisture above 80, and the greenhouse temperature above 33, which can inhibit the survival of thrips. However, it depends on the degree of occurrence of diseases in the shed.
Ways to prevent thrips
1. Kill both eggs and eggs
For the control of pests, vegetable farmers pay more attention to killing insects than to kill eggs, so the number of thrips is easy to increase quickly. Therefore, the prevention and control of thrips should be insects and eggs are killed.
2. Choose the right medication time
Because thrips have the habit of tending to flowers and the habit of lying in the day and at night. The habit of flowering determines that the effect of medicine before flowering is good for the prevention and control of thrips; The habit of day and night determines the effect of the treatment of thrips in the evening. When the disease is severe, spraying combined with fumigation is used for comprehensive prevention and control.
° Spraying agents
Thrips eggs, nymphs and adults are not only found on plants, but also in large quantities in soil cracks, and if only plants are sprayed to kill insects, the control effect is very poor. In order to kill the insecticide thoroughly, the amount of application should be increased when spraying, not only to spray the plants, but also to spray the ground, and to spray strictly and thoroughly.
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Conventional agents such as imidacloprid and acetamiprid are routinely used, and the control effect is gradually reduced; At present, the following prevention and control methods are relatively promoted in the world:
1) Thrips and planthoppers at the seedling stage of rice: thiamethoxam varieties are recommended, imported varieties Ruisheng 30% thiamethoxam suspension seed coating agent, and domestic test varieties Bairui 35% thiamethoxam suspension seed coating agent;
2) Vegetables: eggplant, melons, beans use 25% thiamethoxam water dispersible granules 3000-5000 times to irrigate the roots, reduce the occurrence of viral diseases, and reduce the damage of underground pests.
3) Fruit trees: mango and other thrips are more harmful crops, you can use 25% thiamethoxam Dagong Niu spray, but to increase the amount of use, such as 800 times spray, and at the same time can be mixed with microemulsion avermectin barrels.
4) Tobacco: irrigate roots before transplanting or spray roots during planting, imidacloprid, thiamethoxam, and clothianidin can be used; 1000 times of 25% imidacloprid and 3000-5000 times of 25% thiamethoxam.
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1. Remove diseased branches and leaves.
Before thrips occur, you can choose to cut off some diseased branches and leaves in winter, remove the weeds next to them, and then eliminate them together, which can greatly prevent the occurrence of thrips.
2. Soil disinfection.
The soil needs to be treated before planting, and the soil used for planting should be disinfected in advance to remove the eggs that may be contained in it. For some sown plants, the seeds can be mixed with a small amount of closed pesticides when sowing, and then buried in the soil, which can also play a role in preventing insects.
3. Protect natural enemies.
To prevent the occurrence of thrips, it is also necessary to protect natural enemies, such as aphids, scale insects, lacewings, etc. Thrips can be counterbalanced, and safety will not harm the plant itself.
Fourth, hang the blue sticky insect board.
Thrips tend to be blue and fly to blue places. According to this feature, some blue stick insects can hang next to plants.
5. Spray drugs.
If there are more thrips and need to be sprayed, pesticide stores can buy them. Dilute the early plum spray according to the instructions, and buy several for later use to avoid drug resistance. Thrips are more afraid of light and are best sprayed at night. When spraying, pay attention to spraying evenly and meticulously.
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