After years of practical verification, the following measures can be taken to prevent the harm of grapefruit moss. First, strengthen the management of grapefruit gardens, timely cultivating and weeding, and reasonable pruning to improve the shady conditions in the park and enhance the ventilation and ventilation function in the grapefruit garden. Second, chemical control, in winter choose spray pine grease mixture 15 times, or kill the spirit 100 times liquid or oil emulsion 200 times, or diesel emulsion 200 times add malathion 700 times liquid, carry out canopy spray, against moss There are special effects. In addition, it has a killing effect on the moss that has occurred. Grasp the appropriate concentration, according to the different parts of the moss, the use of different concentrations of agents. The stems in the canopy should be turpentine mixture, and the outer leaves should be 100 times liquid of carbendazim, and the spraying should be uniform, thoughtful, and wet. From mid-November to mid-December, the resulting tree should be carried out after girdling to avoid affecting the tree. Winter is the best season for preventing and controlling moss. It can also treat cockroaches and crickets in one fell swoop. Generally should be carried out in the sunny after the rain, to avoid falling leaves, if the drought does not rain for a long time, the climate is dry, you can first prevent the moss on the trunk, should not control the leaves of moss, so as not to cause leaves.
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