Wrinkle prevention and control
During the apple bagging period, some people discovered that Mian Mian came again. This is related to the fact that the temperature is not too high before May of this year, which facilitates its reproduction and has not been strongly targeted before.
From June to July, it is the peak period of cotton breeding in the whole year. If there is more rainfall, it will accelerate its generational alternation. Therefore, for the orchards that have been found to have been exposed, the insecticide should be targeted first after the bag is finished. Otherwise, the adult does not need to mate to be able to breed a large number of nymphs, alternate generations, the number of multiplication, and produce a small amount of winged toads to the surrounding trees, quickly spread from a tree to the surrounding and even the whole park. From July to August, if the temperature continues to be high, it is not conducive to its reproduction. From September to November, the second breeding damage peak occurred with the decrease of temperature. If only sporadic discovery and incorrect use of drugs had been made before, the entire tree “cotton group†will be seen.
Therefore, after bagging should be used as soon as possible, can use efficient and effective insecticide poisonous silk 1500 times liquid and control early defoliation (brown spot, etc.) bactericidal strong 3000 times liquid mixture, when the red spider is severe, then add the gram 8000 times liquid, and cure a variety of pests and diseases. From September to November (before and after harvesting), non-pollution pesticides such as 1200-fold solution of Pesticide and 3,000 times of Duoxining can be selected for control.
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