Chlorpyrifos is also a kind of spectral organophosphate insecticide with contact, stomach poisoning and fumigation. It has no systemic action and can be used to control a variety of crop pests and underground pests. What is the control object and dosage of chlorpyrifos? Let's take a look at it with Xiaobian.
1. Wheat pests: The control of the wheat leaf bee is used in the early stage of the disease; the control of the aphids is applied before the flowering or after the flowering; when the armyworm is controlled, the medicine is sprayed in the younger larvae. Generally 40-80ml of 40% emulsifiable concentrate per acre, 30-45 kg of water.
2, corn glutinous rice: in the corn big bell mouth period, use 15% granules 80-100g in the heart leaves.
3. Cotton pests: cotton aphids, blind mites, hummers, weevils, and bridge-building worms should be sprayed when the pests increase rapidly; when the cotton bollworms and red bollworms are controlled, during the egg hatching period to the larvae Drill the bud before spraying the bell. Generally, spray 40-150ml of 40% emulsifiable concentrate per acre and spray 45-60 kg of water.
4, the roots of amaranth, garlic: should be in the early stage of root sputum, 40-500ml per 40 acres of emulsifiable milk, with irrigation water.
5. Underground pests: such as tigers, cockroaches, golden worms, etc., the plant base is watered with 400% to 1000 times of milk per acre.
6, vegetable pests: such as cabbage caterpillars, diamondback moth, aphids, thrips, whitefly, etc., can be sprayed with 40% emulsifiable concentrate 100-150ml with water 30-60 kg.
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