When it comes to the problem of when chlorpyrifos pesticides work best, first of all, the Xiaobian of the pesticide network first leads everyone to understand the role of chlorpyrifos, and what kind of insects are killed by poison? Of course, when chlorpyrifos is a problem of many farmers, below Xiaobian tells you in detail what is the most suitable time for chlorpyrifos?
If it is used on the lawn, it will have an effect after a day of fighting. If there are more lawn worms, you should play better in advance. In addition, the biggest disadvantage of chlorpyrifos is that the temperature is too much. If the temperature is too low, it will be released very slowly. If you try to use the water, you will definitely have a little bit of water. Spenburn, a moderately toxic pesticide, smells too pungent.
The lawn should use high-efficiency, low-toxic and environmentally-friendly pesticides. It has no smell and is stronger. If it is after the rain, it will be sprayed after the lawn is dry. It is best to spray it after 4 pm.
If it is soil treatment. Use 3% chlorpyrifos granules per acre 2-4 kg, before or after planting, ditch application, acupoint application or spreading, to prevent cockroaches, cockroaches, and tigers. If it is in the early stage of spawning, use 2000 times liquid light to control cockroaches, 500 liters per acre. Or when the first water or the second water is poured into the garlic in the middle of April, 250-375 ml of emulsifiable concentrate per acre is used, and the root canal is controlled with water.
When chlorpyrifos is used to control fruit tree pests, pests such as peaches and heartworms, such as jujube trees, apples, pears, etc., are controlled, and the eggs are at a rate of 0.5%-1%, before the larvae of the first instar larvae, 960- 1200 times 48% chlorpyrifos emulsifiable concentrate + 1000 times Tianda 2116 (fruit tree special type) fine spray.
The above information is compiled by the pesticide network. Please indicate the source.
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