One is to directly bury the medicine. First open the annular ditch 0.5 to 1.5 meters away from the tree, then bury the 3% carbofuran in the ditch, bury the drug in 100 to 150 grams in 1 to 3 years old trees; 250 to 300 grams in 4 to 6 years old trees; 7 years old More than 500 grams of the above-mentioned trees can be used to control the leaf pests of trees, especially for controlling aphids. The efficacy period can last for about one and a half months. According to the investigation after burial, the effect of controlling pine mites can reach 95%, and the control of mites can reach 100%.
The second is to bury the medicine bottle. First, put 40% omethoate 5 times into the bottle, then excavate the roots of the trunk roots, expose the roots, choose not to exceed the thick roots of the cigarettes, cut the roots, and then insert the original roots. The medicine bottle, the root end is inserted into the bottom of the bottle, and finally the plastic bottle is used to tie the bottle mouth and bury the soil. After the roots are inhaled, the liquid is transported to the stems, branches, leaves and other parts of the tree with the catheter to achieve the purpose of treating the insects.
There are two ways to bury the root:
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