Control methods of common diseases and insect pests of plum

Plum is a common fruit, it tastes sour, sweet and delicious, nutritious and deeply loved by people. Plum trees are cultivated all over the world. However, in the environment with poor management conditions, it is easy to be infected with diseases and insect pests, slightly affect plant growth and development, yield and quality, serious harvest or plant death. So how to control the diseases and insect pests of plums? Let's get to know it.

1. Red dot disease

Red spot is one of the common diseases of plums, which mainly harms the leaves, fruits and leaves in the later stage. Red round disease spots appear on the leaves, which are covered with dark red grain spots. When the disease is serious, the leaves become yellow and fall off. After the fruit is infected, red and yellow round disease spots are also produced on the fruit surface, resulting in poor growth or shedding of the fruit, affecting the yield.

Prevention and control methods: spraying stone-sulfur mixture before sprouting, spraying Bordeaux liquid at flowering stage, strengthening inter-garden management, burying diseased leaves and fruits centrally, reducing pathogens, and paying attention to drainage measures to avoid excessive soil moisture and induce the disease.

2. Bacterial perforation

The disease mainly harms the fruit and produces water-stained dots on the pericarp at the onset of the disease. with the development of the disease, the focus will gradually turn crimson, to the best small spots will perforate, forming small holes in the fruit surface. The disease is easy to be infected in high temperature and humidity environment, and the disease is more serious when the tree is weak, the orchard is poorly drained and the ventilation is poor.

Control methods: select varieties with strong disease resistance, increase the application of organic fertilizer, improve plant disease resistance, strengthen ventilation, pay attention to drainage, and spray stone sulfur mixture and Dysenamine when the disease occurs.

3. Glue disease

Gum disease is also a serious disease, it is more difficult to treat, mainly harming the new branches of the plant, the branches appear blister when the disease occurs, and a hard lump is formed after drying, which leads to poor branch growth, affects the tree potential, and causes the branches to die in serious cases. In the case of high temperature, the lump cracks and the gum flows out.

Prevention and treatment methods: combined with everyone to clear the garden, thoroughly remove diseased branches and plants, burn in time, the initial stage of the disease can be sprayed with uniconazole, once every 10 days, 2-3 times in a row.

4. Red spider

It mainly harms the leaves of the plant, adults and nymphs gather together, constantly sucking leaves and newly germinated branches and leaves, so that the growth nodes can not continue to germinate and grow. In the end, the leaves will gradually turn black until they fall off. When the red spider is seriously damaged, it will not only lead to the failure of fruit in the same year, but also affect the bud differentiation and yield in the coming year.

Control methods: during the dormant period to the Spring Festival sprouting, spray anthracene oil emulsion to prevent, after overwintering adults lay eggs and hatch, timely spray triclofenac and omethoate.

The above is the introduction of common plum pest control methods, hope to help you, want to know more related knowledge, please pay attention to us.