The latest control methods of common diseases and insect pests of Siraitia grosvenorii

Luohanguo is a perennial vine, alias Lahan fruit, false balsam pear, gold does not change, its fruit is extremely rich in nutrition, rich in vitamins and a variety of sugars, has the effect of relieving cough and resolving phlegm, clearing away heat and moistening the lungs, and has high edible and medicinal value. It has been cultivated in China for more than 300 years. In the process of growth, the breeding and spread of some diseases and insect pests seriously affected the growth of Siraitia grosvenorii, resulting in a reduction in production. Let's take a look at the prevention and control methods of common diseases and insect pests in Siraitia grosvenorii.

1. Virus disease

Virus disease is the main disease of Siraitia grosvenorii. It mainly harms the leaves and fruits of Siraitia grosvenorii. After infection, the leaves show symptoms of chlorosis, deformity, shrinkage, and sometimes blister leaves. In the later stage, the leaves are thick and hard, and gradually yellowing, so that the number of hanging fruit of the plant is reduced. Even after hanging the fruit, the fruit can not cause growth, often grow malformed, and the weight is much lower than the normal fruit. The disease breaks out during high temperature, and the higher the temperature, the greater the harm of the disease.

Control methods: select virus-free seedlings and soil planting, strengthen fertilizer and water management, increase the application of organic fertilizer and phosphorus and potassium fertilizer, improve the disease resistance of plants. Insecticides can be sprayed regularly to control aphids so as not to spread the disease. Antiviral agent No. 1 and 83 can be sprayed once a week for 2-3 times continuously.

2. Anthrax

Anthracnose mainly harms leaves, vines and fruits. When infected, disease spots appear. With the passage of time, the disease spots expand and turn brown. If not treated in time, the plant will die. In a wet environment, the disease will rot, especially after harvest, resulting in a large number of fruit rot and affecting income.

Prevention and treatment methods: increase the application of phosphorus and potassium fertilizer, improve disease resistance, in the early stage of the disease, spraying methyl topzine, Luheng No. 2 and other agents, once every 7-10 days, 2-3 times in a row.

3. Root knot nematode disease

Root knot nematode disease is caused by a kind of root nematode that harms the root system and tuber. it is named after the root system and tuber appear large and small, which is the main disease affecting the production of Siraitia grosvenorii. Because the location of its disease is underground, there is no obvious symptom in the early stage of the disease, but in the later stage, the aboveground part gradually withered due to lack of nutrients and water.

Prevention and control methods: disinfect the soil during planting, kill root nematodes, and sprinkle pesticides such as Fuqiduo into the hole during planting, which can reduce the probability of disease.

4. Budding blight

As the name implies, bud blight harms the tender buds of the plant. When infected, the tender leaves of the plant are yellowed, the buds turn brown and die, and the growth nodes of the plant are destroyed, which can not blossom and bear fruit normally, and lead to no harvest in serious cases.

Prevention and control methods: according to practical production, the occurrence of the disease may be caused by the lack of boron in the soil and soil acidification, so the application of boron fertilizer can prevent the disease. If the soil is acidified, lime powder or plant ash can also be applied to adjust the pH.

5. Insect pests

The main pests of Siraitia grosvenorii are Huangshou melon, red spider, bugs, termites and flies, which mainly harm plant leaves, young parts and fruit, affect the yield and quality of Siraitia grosvenorii, and may cause no harvest or plant death in the outbreak period.

Control methods: insecticides can be sprayed regularly to control insect pests, and targeted agents can also be used to control all kinds of insect pests.

The above are the common pest control methods of Siraitia grosvenorii. I hope I can help you. If you want to know more about Siraitia grosvenorii planting, please follow us.