Control of Diseases and insect pests in artificial pollution-free cultivation of Lycium barbarum
Lycium barbarum is a perennial shrub with mild diseases and insect pests. The main diseases of Chinese wolfberry in production are powdery mildew, rust and root rot. 0.2% sodium bicarbonate solution can effectively control powdery mildew and rust, and avoid pesticide residues.
The main pests of Chinese wolfberry are red spider and peach aphid. 50g fresh red pepper or dry red wine pepper with water 50-100kg can be boiled for about 30 minutes and sprayed with its filtrate.
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Finding biological agents for diseases and insect pests during the growing period of Chinese wolfberry
With the birth of four kinds of compound pure biological agents prepared by the research group of "Research on Biological Control techniques of main Diseases and insect pests of Lycium barbarum" of Institute of Plant Protection of Ningxia Academy of Agricultural and Forestry Sciences, the diseases and insect pests restricting the development of Lycium barbarum industry in Ningxia have finally encountered the biggest "natural enemies". The use of this chemical will realize the biological control of diseases and insect pests in the whole growing period of Chinese wolfberry, which can not only reduce the times of control, but also improve the quality of Chinese wolfberry. Lycium barbarum is a traditional Chinese medicine grown in Ningxia, and it is also a leading industry determined by the party committee and government of the autonomous region. However, the occurrence of diseases and insect pests of Lycium barbarum is extremely complex.
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Diseases and insect pests of Lycium barbarum and their control
1. Black fruit disease of Chinese wolfberry, also known as anthracnose. Damage to fruits and leaves. ① fruit disease, first in the green fruit to produce a round irregular brown micro-sunken disease spot, there are small black spots, arranged into a wheel, and some appear orange-red sticky matter on the disease spot. In the later stage, the diseased fruit turned black, stiff and dead early. ② leaves were characterized by small yellow spots at the initial stage, and then expanded into irregular spots with reddish brown edges. In the later stage, there were small black spots on the lesions, and some ruptured and perforated. From July to August, the disease was serious when it was hot and humid. Prevention and treatment: when ① is pruned in winter
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