Control method for scab of pear

Abstract

The invention discloses a control method for scab of pears. The method comprises the following steps: selecting to use a disease-resistant variety, including selecting a variety which is relatively good in disease resistance in garden building; eliminating over-wintering pathogen sources, including sweeping fallen leaves and dropped fruits when autumn changes into winter, and burning the fallen leaves and dropped fruits in a concentrated manner; before pear trees sprout in early spring, combined with trimming, removing diseased shoots, to reduce infection sources, and spraying a biological drug; controlling in an artificial manner, including searching and cutting off the diseased shoots, diseased leaves, and diseased fruits in time in April to May each year, deeply burying or burning the diseased shoots, diseased leaves, and diseased fruits; enhancing planting management, including additionally applying an organic fertilizer to enhance tree vigor and improve tree disease resistance; controlling by drugs, including determining types and spraying frequency of drugs according to different growing periods and disease conditions. Through the above method, the method uses a comprehensive control measure, and control effect on scab is substantial, and loss caused by the scab is reduced.

Description

technical field [0001] The invention relates to the field of pear tree planting, in particular to a method for preventing and treating pear scab. Background technique [0002] Pear is a commercial fruit second only to apple in our province. The cultivated area is nearly one million mu, and a large-scale industry has been formed. But along with the gradual expansion of pear planting scale in recent years, several main diseases such as pear scab, rot and rust in the pear planting process have become increasingly serious to the production of pear fruit, seriously affecting the production of pear fruit. The quality and appearance pose a great threat to the pear industry in our province. Scab is one of the main diseases in the production of pear trees. It occurs more commonly and often causes heavy losses in severe years. In recent years, due to the uncontrolled use of fungicides and the continuous repeated use of a single agent, the resistance of pear scab has increased signif...

AI Technical Summary

Problems solved by technology

In recent years, due to the uncontrolled use of fungicides and the continuous repeated use of a single agent, the resistance of pear scab has increased significantly, and the difficulty of control has increased