The basic method of disease and pest control in hanging medicine bottles in trees
Hang the bottle containing the liquid medicine on the trunk, and inject the liquid in the bottle into the small hole in the trunk through the cotton core, and the liquid can be transported to the branches and leaves of the canopy through the conduit of the tree, so as to achieve the purpose of controlling diseases and insects. This method has the advantages of saving labor, saving drugs and high efficiency, which is worth promoting and applying, and this article introduces its basic technical points for reference.
1. Applicable objects. This method is suitable for the prevention and control of leaf-eating dry pests such as aphids, red spiders, mesozoites, rust ticks, chestnut bees, tianniu, giddings and other leaf-eating moths and brown spot diseases, rotifer disease, bituminous coal disease and vegetarian deficiency diseases in fruit trees and forest trees.
Second, the application time. It can be done from the beginning of the flow of sap in the spring to the dormancy of the trees in winter, but the effect is better from April to September. Generally, the liquid rises every day in the tree, so the application time should be several days earlier than the spray period.
Third, pesticide selection. Endogenous pesticides with good control effects and high solubility must be selected according to pest and pathogen species. Insecticides and fungicides can be concentrated 100 times according to the spray concentration, and the treatment of deficiency can be used according to the spray concentration.
Fourth, the operation method. First use carpentry to drill a small hole in the trunk that is easy to operate, and the direction of the hole should be downward and at a 45-degree angle to the trunk, deep into the center of the pulp. Then hang the bottle nail containing the liquid medicine above the hole, use the cotton core thread to reach the bottom of the hole and the end to the bottom of the bottle, and make the cotton core pull in a straight line.
V. Precautions. Tree hanging medicine bottles can not use tree-sensitive pesticides to avoid causing drug damage. The liquid medicine in the bottle can be supplemented as needed, and when the purpose of prevention and treatment is achieved, the drug should be removed in time. Before the fruit is harvested, the general liquid will rise in the tree every day, so the application time should be several days earlier than the spray time to avoid the residual pesticide in the fruit. The use of this method should be tried in a small amount, and then fully applied [Jishan Huayao] after trial and experience.
