What are the latest control methods for common pear tree pests and diseases?

The snow pear is a fruit with very high nutritional value, especially when it comes to clearing heat and detoxifying, and it also has high medicinal value in itself. However, the pear tree is a tree species that is very prone to disease. Below, Qinnong Web introduces some common pear tree pests and diseases and their control methods to help everyone solve some troubles.

1. Pear aphid

This is one of the most common parasitic pests on pear trees. It mainly prefers to parasitize the leaves and intercept the pear tree's nutrients, which can seriously affect the pear tree's fruiting rate. The symptoms are pear aphid larvae attached to the pear tree leaves; as time goes on, the leaves begin to shrivel into a cylindrical shape and eventually fall off. Generally, when such leaves are found, they should be picked off and burned in time to avoid infecting more places. In the early stage, manual removal can solve it; in severe cases, 50% parathion emulsifiable concentrate 3000-times solution can be sprayed for control.

2. Pear scab

That is, the so-called pear black spot disease, which mostly occurs in the early fruiting stage, causing deformed fruit growth. The disease is mostly induced by excessive humidity. The symptoms are that spot-like marks begin to appear on the pear surface, then it slowly becomes moldy and black, and finally the whole fruit withers. In addition, pear scab is a mass-incidence disease, so it must be dealt with promptly once found. Guobingling, tebuconazole, and black spot quick-kill powder are relatively commonly used agents for treating this disease. A 40% Xinxing emulsion 800-1000-times solution can also be sprayed for early prevention.

3. Pear tree rust

This disease is especially harmful to leaves, and its damage to young pears is also relatively high. It mostly concentrates in periods of high humidity and alternating temperatures. On leaves, the symptom is the appearance of rust-like spots, which then slowly dry up; on fruit, the symptom is drying and necrosis at the tips. Juniper and similar plants can greatly increase the incidence rate, and this should be noted. In prone seasons, spray 20% triadimefon emulsifiable concentrate 1500-2000-times solution for prevention, twice a month for two consecutive months. If the disease occurs, use 20% triadimefon 600-times solution for treatment.

4. Pear fruit moth

This is one of the parasitic pests that pear tree fruit fears most. Once it is discovered, the snow pear is already beyond saving and has rotted. Therefore, early prevention and post-incidence handling must be timely and taken seriously. It mostly occurs because the parasite enters the fruit at an early stage, and as the insect grows, the fruit becomes more and more obviously affected. For affected fruit, directly pick them off and take them out of the orchard for destruction, and the surrounding trees should immediately be sprayed with pesticide. Mieshaoli and MieyouNiao No. 3 are two relatively common treatment methods.

Once a pear tree becomes diseased, it must be taken seriously, otherwise the spread will become very serious. Therefore, everyone should be more careful in daily inspections of the orchard, and do not be reluctant to use various pesticides; once the disease becomes severe, the loss will be even greater. If you want to learn about some other knowledge about pear trees, you can follow our website.