How to use chlorpyrifos?

  It is easy to dissolve in water and soluble in organic solvents. It is a systemic selective herbicide. It can be absorbed and transmitted through roots and leaves. It has the best control effect on newly germinated weeds, and has a wide range of herbicides, which can prevent annual grass weeds and broadleaf weeds. So how to use it?

Instructions:


1. Use in dry fields


Before planting cotton before sowing or after sowing, use 50% wettable powder 100-150g per acre or use 48% of Fluramine Emulsifiable Oil 100ml per acre and 50% of 50% chlorpyrifos WP. Evenly sprayed on the surface, or evenly mixed 20 kg of fine soil, and then mixed soil 3cm deep, can effectively prevent 1 year old single, dicotyledon weeds.


Peanuts, soybeans, before planting or after sowing, 50-150 grams of 50% wettable powder per acre, 30 kg of water, evenly sprayed the soil surface.


Before the seedlings are planted, 50 grams of 50% wettable powder per acre, 30 kilograms of water, and soil spray.

Wheat field in the 2-3 leaf stage of wheat seedlings, weeds 1-2 leaf stage, using 50% wettable powder 75-100 grams per acre, 30-50 kg of water, spray treatment of stems and leaves, can prevent turbidity, see wheat Mother and other weeds.


Carrots, celery, garlic, onions, leeks, fennel, etc., before planting or after sowing, use 100g of 50% wettable powder per acre, evenly spray 50 kg of water on the soil, or use 50% of grass per acre. 50 g of wettable powder and 200 ml of 25% herbicidal ether emulsifiable concentrate are used for better effect.


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


In the early stage of large-scale germination of 1-year-old weeds, under the condition of soil moistening, use 50-100% wettable powder per acre 250-300 g, use alone or halve with lax, butachlor, etc. . 5-7 days after rice transplanting in rice fields, use 50% wettable powder 20-40g per acre, or 50% chlorpyrifos WP and 25% herbicide ether wettable powder 400g, mix wet sand 20 Mix about kilograms, mix well, and spread the whole field evenly after the rice leaves are dried.


When applying the medicine, keep 3-5cm shallow water layer in the field and keep water for 7-10 days after application. 20-25 days after transplanting rice, when the leaves of the leaves are changed from red to green, 65-100 g of 50% wettable powder per acre in the north, 25-50 g in the south, and 20-30 kg of moist fine soil. . The water layer remains the same as before.