The trunk packing method is a new method for controlling fruit tree aphids that has been popularized and used in recent years. This method not only applies to orchards, but also applies to the prevention and treatment of wood aphids. Its specific method:
First, select the site where the main tree of the fruit tree is between 20 and 30 feet away from the ground. At centimeters or at the base of the main branch, a smooth raspberry (width of about 15 cm in width) is selected as the drug-containing site.
Second, the drug site first wrapped in a selected area of ​​absorbent (old cotton, toilet paper or used newspapers and other newspapers can be), and then 50% of methamidophos or 40% of omethoate diluted to 3 ~ 5 times liquid, injected or smeared on the absorbent about 20 ml, then tied with a plastic film.
Third, remove the wrap plastic film in the liquid show the effect of 5 to 6 days lifted, absorbent removed before the rain, so as to avoid rot at the dressing.
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