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It is okay to pay attention to the method and the appropriate amount. Dimethoate is a white needle-like crystal with a solubility of 39 grams in water (room temperature). It is easily absorbed by plants and transported to the whole plant.
It is relatively stable in acidic solution and rapidly hydrolyzed in alkaline solution, so it cannot be mixed with alkaline pesticides. It is one of the varieties with wide uses and large yield among organophosphorus systemic insecticides.
How to use: 1 Prevention and control of cotton pests Cotton aphid is sprayed with 50 ml of 40% emulsifiable concentrate per mu, or 40 ml of 50% emulsifiable concentrate, and 60 kg of water. At the same time, this amount can be used to control cotton thrips and cotton leafhoppers.
To control aphids and red spiders, we should focus on spraying the back of the leaves, so that the effect of the liquid contact with the insect body is better.
2 Prevention and control of rice pests Control gray planthopper, white-backed planthopper, brown planthopper, leafhopper, thrips, 75 ml of 40% dimethoate EC per mu, or 50 ml of 50% emulsifiable concentrate, spray 75-100 kg of water.
3 Prevention and control of vegetable pests Control of vegetable aphid, eggplant, red spider, onion thrips, pea leaf miner fly, use 50 ml of 40% emulsifiable concentrate per mu, spray 60-80 kg.
4 Prevention and control of tobacco pests To control tobacco aphids, tobacco thrips, and tobacco green insects, use 60 ml of 40% dimethoate EC per mu, or 50 ml of 50% emulsifiable concentrate, and spray 60 kg of water.
5 Control of fruit tree pests Apple leafhoppers, pear star caterpillars, and psyllids are sprayed with 1000-2000 times of 50% emulsifiable concentrate. Citrus red wax and cicada are sprayed with 40% emulsifiable concentrate 800 times.
6 Prevention and control of tea tree pests Control tea orange gall mite, tea green leafhopper, spray with 40% emulsifiable concentrate 1000-2000 times.
7 The control of flower pests gall mites, psyllids, fruit flies, blind bugs, spray with 300-500 mg kg concentration of liquid medicine. Scale insects, stinging moths, and aphids are sprayed with 2000-3000 times of 40% emulsifiable concentrate on flowers.
Precautions. 1. Some varieties of hops, Asteraceae, sorghum and tobacco, jujube, peach, apricot, plum, olive, fig, citrus and other crops are sensitive to dimethoate emulsion with a dilution factor of less than 1500 times, and pesticide damage tests should be carried out before use.
2. Dimethoate is highly toxic to the stomach of cattle and sheep, and the green manure and weeds that have been sprayed should not be fed to cattle and sheep within 1 month. Cattle and sheep should not be grazed within 7-10 days in the place where the medicine has been applied. It is more toxic to the stomach of poultry, so pay attention to it when using it.
3 Do not use the medicine before harvesting vegetables.
4. Oral poisoning can be repeated gastric lavage with normal saline, and contact poisoning should leave the scene quickly. The antidotes are atropine, phosphate-lysopyla, and chlorophoridine, which strengthens cardiac monitoring, protects the heart, and prevents sudden death.
Potassium permanganate can oxidize dimethoate into more toxic substances, so potassium permanganate gastric lavage is prohibited for dimethoate poisoning.
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It is inaccurate to say that dimethoate causes soybeans to fall off their flowers and pods.
This problem does not occur when used at normal concentrations.
If the concentration is too high, not only will flowers and pods fall but also leaves may fall.
However, it is better not to use dimethoate on soybeans, which is highly toxic and involves food safety.
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Dimethoate oxide is a highly toxic phosphorus-containing pesticide and is not recommended to be promoted at present.
It is an insecticide that used to be used for soybeans.
Due to its height and easy to cause environmental pollution, it causes eutrophication of water bodies.
Now it is gradually not used.
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Dimethoate is a pesticide to control aphids, and soybean aphids are aqui te amo that can be used to fight dimethoate.
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Dimethoate is also known as dimethoate. It is a high-efficiency, broad-spectrum systemic insecticide and acaricide. It is more toxic to some pests than dimethoate, and its effective life is longer than that of dimethoate.
Knock down pests strongly. It is mainly used to control the pests of stinging and suction devices. Spray 1500 2000 times of water with 40% oxidized dimethoate EC to control various aphids, red spiders, thrips, etc.; Spray 1000 times of water with 40% emulsifiable concentrate, or water the roots, which can control scale insects such as scale insects such as blowing cotton scales, brown soft scales, mulberry white scales, paramecium, sagittal scales, and whiteflies; Precautions.
Dimethoate oxide is highly toxic to humans and animals, and is a highly toxic pesticide. Therefore, special attention should be paid to safety when using it. Dimethoate oxide is easy to hydrolyze, aqueous solution can not be stored for a long time, and the liquid medicine should be used with it, otherwise it will reduce the efficacy.
For chemical weeding of soybeans, it should be carried out cautiously to avoid unnecessary losses. >>>More