What are the uses and precautions of tebufenozide?
Tebufenozide is a new non-steroidal insect growth regulator and is the latest developed insect hormone insecticide. So what are the uses of tebufenozide? What are the precautions for use?
1. What are the uses of tebufenozide?
Tebufenozide has broad-spectrum, high-efficiency, low-toxicity and other characteristics, and has stimulatory activity on insect ecdysone receptors. Its mechanism of action is that after larvae (especially lepidopteran larvae) feed on it, they molt when they should not molt. Because the molting is incomplete, the larvae dehydrate and starve to death. At the same time, it can control the basic functions in the insect reproduction process and has a strong chemical sterilizing effect. Tebufenozide is non-irritating to eyes and skin, has no teratogenic, carcinogenic or mutagenic effects on higher animals, and is very safe for mammals, birds and natural enemies.
Tebufenozide is mainly used to control pests on citrus, cotton, ornamental crops, potatoes, soybeans, tobacco, fruit trees and vegetables, including Aphididae, Cicadellidae, Lepidoptera, Liriomyza, Tetranychidae, Thysanoptera, root-knot nematodes, and lepidopteran larvae such as the pear fruit borer, grape tortrix and beet armyworm. This product mainly has a residual effect period of 2 to 3 weeks. It has special efficacy against lepidopteran pests. High efficiency, with a dosage of 0.7 to 6 g per mu (active ingredient). Used for fruit trees, vegetables, berries, nuts, rice and forest protection.
Because of its unique mechanism of action, it has no cross-resistance with other insecticides. This agent has now been widely used on rice, cotton, fruit trees, vegetables and other crops as well as in forest protection, to control various lepidopteran, coleopteran, dipteran and other pests. At the same time, it is very safe for beneficial insects, mammals, the environment and crops, and is one of the ideal agents for integrated pest management.
Tebufenozide can be used to control the pear fruit borer, apple tortrix, grape tortrix, pine caterpillar, fall webworm and so on.
2. Is tebufenozide toxic?
Acute oral LD50 in rats and mice >5000 mg/kg; acute dermal LD50 in rats >5000 mg/kg; eye irritation and skin irritation: minimal; mutagenicity: negative; environmental toxicity: wild duck 8-day daily food intake LC50 >5000 mg/kg, rainbow trout 96-hour LC50: 5.7 mg/L, Daphnia 48-hour EC50 3.8 mg/L, honeybee 96-hour contact LD50 >234 μg per bee, with no effect on the growth of young honeybees; beneficial arthropods: under laboratory conditions, tests on predatory ladybugs, predatory mites and some predatory wasps and spiders showed negative results.
3. How to use tebufenozide
To control pests on jujube, apple, pear, peach and other fruit trees such as leaf rollers, fruit borers, various slug moths, various caterpillars, leaf miners and geometer moths, spray with 20% suspension concentrate at 1000-2000 times dilution.
To control resistant pests on vegetables, cotton, tobacco, grain and other crops such as cotton bollworm, diamondback moth, cabbage caterpillar, beet armyworm and other lepidopteran pests, spray with 20% suspension concentrate at 1000-2500 times dilution.
4. Precautions for using tebufenozide
This pesticide has poor efficacy against eggs, and spraying in the early stage of larval occurrence gives good results. Tebufenozide is toxic to fish and aquatic vertebrates, and highly toxic to silkworms. Do not pollute water sources when applying it; it is strictly forbidden to use it in silkworm rearing areas.