Praxanthine commonly used indicators

Praxanthine

English generic name prometryn

The other names are esa gard, Caparol, g 34161, Mekazin, and Selektin.

Toxicity is low toxicity to humans and animals. Acute oral LD50 in rats was 3150-3750 mg/kg. Percutaneous rabbit acute LD50> 10200 mg / kg. There was no effect on rats at a dose of 1250 mg/kg, low toxicity to birds, bees, and moderate fish toxicity.

Formulation 50%, 80% wettable powder.

Features insoluble in water, soluble in organic solvents. Is a selective herbicide. It can be absorbed and transmitted through the roots and leaves. The best weed control effect is for weeds that have just germinated. They can kill a wide spectrum of grass and can control annual weeds and broad-leaved weeds.

The scope of application applies to cotton, soybeans, wheat, peanuts, sunflowers, potatoes, fruit trees, vegetables, tea trees and paddy fields to control alfalfa, crabgrass, amaranthus, wild leek, alfalfa, alfalfa, purslane, aphrodisiac, One-year-old grasses and broad-leafed grass such as Fokie, Plantain.

Instructions

1. Dry field use

Before or after sowing of cotton, use 50% wettable powder 100-150 g per acre, or 48% trifluralin EC 100 ml, and 50% Praxacum WP 100 g, 30 kg water. Evenly spray on the ground surface, or evenly spread 20 kilograms of mixed soil, then mix the soil 3cm deep, which can effectively prevent one-year-old single, dicotyledonous weeds.

Peanuts, soybeans, before sowing, or before sowing after emergence, use 100-150 g of 50% wettable powder per acre, 30 kg of water, and evenly spray the soil surface.

Before the seedlings are sown, they use 50% wettable powder 50 grams per mu, 30 kg water, and soil surface spray.

Wheat field is 2-3 leaf stage of wheat seedlings, 1-2 leaf stage of weeds, 5-100% wettable powder 75-100 grams per mu, 30-50 kilograms of water, stem and leaf spray treatment, which can prevent stigma and wheat Mother and other weeds.

Carrots, celery, garlic, onions, leeks, fennel, etc. before sowing or before sowing, after sowing, per acre with 50% wettable powder 100 grams, 50 kg of water on the soil surface evenly spray, or 50% per acre with paraquat 50 grams of wettable powder and 25% of herbicidal emulsifiable concentrate 200 ml mix better.

2. Use of fruit trees, tea gardens, mulberry fields

In the early stage of a large number of weeds in the first year of germination, under wet soil conditions, use 50% wettable powder 250-300 grams per acre. Use only a half or a half amount together with cable and butachlor to spray the soil surface evenly. . 5-7 days after rice transplanting in paddy field, use 50% wettable powder 20-40g per acre, or 50% prometryne wettable powder plus 25% weeding ether wettable powder 400g, mix wet sand 20 About kilograms, mix thoroughly, and after the dried rice leaves are dew, spread the whole field evenly. When the pesticide is applied, keep 3-5cm of shallow water in the field and retain water for 7-10 days after application. 20-25 days after the transplanting of rice, when the leaves of the steamed greens turn green, the north uses 65-100 grams of wettable powder per acre, the south uses 25-50 grams, and the wet fine soil uses 20-30 kilograms. . The water layer remains the same as before.

Precautions

1. Strictly control the amount of application and application time, otherwise it is easy to produce phytotoxicity.

2. Sand and soil with low organic matter content are prone to phytotoxicity and should not be used.

3. Do not arbitrarily loosen soil or earthworms for half a month after application so as not to damage the medicine and affect the efficacy.

4. Spray equipment should be cleaned after use.

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