Biological fungicides for controlling tomato leaf mold

Abstract

The invention discloses a biological sterilizing agent for preventing tomato leaf mold. Amygdalin serves as an active ingredient, the weight percentage of the amygdalin is between 0.1% and 60%, and ethyl alcohol serves as a solvent; other adjuvants or sterilizing active ingredients can further be added in the sterilizing agent. The invention provides new application of the amygdalin, and the biological sterilizing agent can be used for inhibiting and killing leaf mold germs, particularly has a good prevention effect on leaf mold of garden stuff such as tomatoes, is friendly to environment andcrops, does not have any pollution, has no residue or toxic and side effects simultaneously, is environmentally friendly and can be continuously produced.

Description

technical field [0001] The invention relates to a biological sterilant for preventing and treating tomato leaf mold, and belongs to the technical field of pest control. Background technique [0002] Tomato is one of the most important vegetable crops in my country, with a total annual planting area of ​​over 8,395,100 hectares. Leaf mold is one of the important diseases in tomato production. Tomato leaf mold occurs on the leaves, stems, flowers, and fruits of tomatoes. Symptoms will appear, but the most common ones are on the leaves. In the early stage, some chlorotic spots appear on the back of the leaves, and later turn gray or black purple. Irregular mold layer, the front of the leaf turns green and turns yellow at the corresponding part, and when it is severe, the leaf often appears shriveled and shriveled. From the sequence of onset, it often spreads upward from the lower part of the plant, and the pathogen can grow and develop at a temperature ranging from 9°C to 34°...

AI Technical Summary

Problems solved by technology

However, the physical control of tomato leaf mold has not yet established a simple, effective and practical technical method