What are the diseases and insect pests of purple leaf dwarf cherry?

1. Disease.

The common disease of purple-leaf dwarf cherry is root cancer, which is a bacterial disease. Once infected, it will cause the root stem of purple-leaf dwarf cherry to grow into a gall tumor, so it is called root cancer. This kind of bacteria is mainly transmitted when watering trees, Rain Water and seedlings, and invades through the wounds of trees to cause disease. Once root cancer occurs, the growth, development and appearance of purple leaf dwarf cherry will be affected, which will seriously lead to the death of trees.

2. Insect pests.

The main pests encountered in the growth of purple leaf dwarf cherry are diamondback moths, aphids, red spiders, grasshoppers and so on.

Purple leaf dwarf cherry diseases and insect pests control methods 1, disease control methods.

It is necessary to strictly inspect the system, do a good inspection before the seedlings are transported, destroy the trees as soon as root cancer is found, and thoroughly disinfect the sites where diseased trees are planted with drugs such as quicklime or bleach, and do not plant saplings in the disinfected soil within a week.

The saplings that are initially infected with the disease can use a knife to remove the diseased site, and then smear the wound with drugs such as lime milk to prevent the disease.

If it is a grown trunk, once suffering from root cancer, penicillin, streptomycin and oxytetracycline can be subcutaneously injected or soaked in roots, which has a significant therapeutic effect on root cancer.

Saplings that are not sure whether they are infected by root cancer bacteria can be soaked in 1% copper sulfate solution before planting, rinse with clean water five minutes later and then plant.

2. Insect pests.

In view of insect pests, the trunks and branches of purple cherry trees can be whitened every year when overwintering, and the eggs and cocoons can be removed at the same time. When trees grow in early spring, fungicides such as chlorothalonil and carbendazim should be sprayed in time to prevent pests. Diamondback moths, aphids, leaf hoppers and scale insects can be sprayed with deltamethrin, and red spiders can be controlled with triclofenac.

Control of main Diseases and insect pests of Purple Leaf Dwarf Sakura

In the process of cultivation, purple leaf dwarf cherry will be harmed by diamondback moth, aphids, red spiders, leaf hoppers and scale insects. Try to whiten the trunk and branches every winter, scrape the eggs and cocoons clean, and spray chlorothalonil, carbendazim and other broad-spectrum fungicides in early spring.

If the disease occurs, it should be treated in time, such as diamondback moth, aphids, leaf hoppers and scale insects can be sprayed with deltamethrin, and red spiders can be controlled with triclofenac.