A netizen said that he used octyl sulphuric acid for cabbage last year, which not only did not cure the insects, but also endangered the vegetables. How should it be used correctly to be safe, effective and economical?
1. The role of octylthion:
It has a strong touch killing effect and a strong gastric toxic effect.
2. Toxicity level: low toxicity
3. Performance:
Insoluble in water, easily soluble in organic solvents. Under stable neutral and acidic conditions, alkali decomposition fails. Safe for humans and animals. Toxicity to fish is also low.
4. Dosage form:
50%; 75% emulsion; 5% granules; 25% ultra-low volume oil.
5. Prevention and control objects:
Octyl thion is a highly efficient and low-toxicity residue broad-spectrum insecticide.
It has special effects on underground pests such as grubs, caddisflies, etc. At the same time, it also has good effect on fruit flies, small vegetable moths, and mesenchymal insects.
6, How to use:
Applied to the soil to control underground pests. It can also be used for spray control of pests.
1) When seeding with octylthion, use 75% octylthion emulsion half a catty + water 85 kg + seed mix 1500 kg to control underground pests with good results.
2) Use 50% emulsion 1000 times liquid spray to control thrips, cabbage worms, small cabbage moths, twill moths and other pests on vegetables, and the effect is good.
3) Use 50% emulsion 2000 times liquid to control cotton aphids, cotton red spiders have a certain effect.
4) With 5000 times the liquid can effectively control mulberry thrips, pine caterpillars.
5) With 500 times the solution can effectively control the armyworm on wheat.
6) Use 1.6% octyl thiophos granules to control corn borer, and the effect is good with half a catty per mu.
7. Specially remind netizens to pay attention to the following points:
1) Cucumbers, phaseolus beans are particularly sensitive to octylthion.
2) It is forbidden to use it on crops such as sorghum, soybeans, melons, etc.
3) Use caution on crops such as rice and corn so as not to endanger crops.
4) More than 50% octylthion emulsion 500 times liquid will cause drug damage to crops.
5) Spray time is best carried out in the evening.
Scientific use of drugs, the right medicine, accurate use of drugs, is the key technical measures to control pests.
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