Granule for preventing and treating mango bacterial disease and preparation method thereof

Abstract

The invention discloses a granule for preventing and treating mango bacterial disease and a preparation method thereof, and belongs to the field of pesticide preparations. The granule comprises a particle or tablet formed by performing mixing and pelleting on the following components in percent by weight: 5 to 30 percent of a copper preparation, 30 to 70 percent of a water-retaining agent, 20 to 50 percent of an adhesive, 0.1 to 5 percent of a lubricant, and 0.5 to 20 percent of nutritional ingredient. The preparation method comprises the following steps: crushing all the components, firstly uniformly mixing the adhesive and the water-retaining agent, then adding other components, and uniformly mixing; pressing uniformly mixed powder into tablets or particles, sieving, uniformly mixing uniformed powder, and pelleting. The granule is good in bactericidal effect, long in the effective duration of fungicides and good in control effect; pesticide hazard cannot be produced, and leaves and fruit surfaces cannot be damaged; and the granule is simple and convenient to apply, and high in working efficiency.

Description

technical field [0001] The invention belongs to the field of pesticide preparations, in particular to a pesticide preparation for preventing and treating mango bacterial diseases. Background technique [0002] Bacterial angular leaf spot, also known as bacterial black spot or canker, is the main bacterial disease on mangoes, and it commonly occurs in major mango producing areas such as Sichuan, Guangdong, Guangxi, Yunnan, Hainan and Fujian. Mainly damage leaves, branches, flower buds, flower spikes and fruits. Small black spots the size of needleheads appear on the infected leaves of unturned green shoots, and then expand into small raised black spots with yellow halos around them. The spots are polygonal, and later the spots merge into irregular large black spots. Longitudinal streaks. There are needle-like black dots on the fruit skin at the beginning of the fruit infection, and then expand into crater-shaped dark brown ulcers, which are easy to induce the invasion of an...

AI Technical Summary

Problems solved by technology

At present, copper preparations are mostly used to prevent mango bacterial diseases by spraying. Generally, spraying protection is carried out after fruit trees are pruned or before the arrival of typhoons and rainy seasons. Continuous spraying is required for multiple times to prevent and control, but most of the control effects are not ideal. , and often due to improper use, it is easy to cause local copper ion concentration to be too high, resulting in phytotoxicity, light leaves fall, severe ones die; if it rains after spraying, the medicament is washed away and needs to be re-sprayed

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