Prevention of potato damage by bean phthalocyanine

At present, the bean phthalocyanine is found to be harmful to the mulching potato in the Longhu District of Shizuishan City, covering an area of ​​about 30 mu. The leaves of some fields are seriously damaged and affect the normal growth of the potato.
There are three types of phthalocyanine, namely Epicauta gorhami Marseul, Mylabris ciohorii Linne, and Mylabris phalerata Pallas. It mainly harms beans, peanuts, and peppers, but also can damage crops such as tomatoes, potatoes, eggplants, sugar beets, leek, and leek. Injury to adults, mainly feeding on leaves and petals, the beans will be eaten as a short-cut, leaving only the veins, but also eat pods into a short cut, affecting the yield and quality.
First, the morphological characteristics of bean phthalocyanine are Coleoptera, pedigree. The body length of adult white bean nymphs is 15-18 mm and dark brown. The head is slightly triangular and auburn. There is a longitudinal yellow-white stripe on the center of the prosthodontic plate and the two elytra wings. Eggs are oval in shape, yellowish-white, and arranged in chrysanthemum. The larvae were dark-brown, three-legged crickets that were active and lively; 2-4 and 6 were cricket-type; and the fifth larvae were uncared for. The nudibranch is about 15 mm long, yellow-white, with nine long stabs on the lateral and posterior borders of the pronotum. The body length of the black and white flower turnip is about 15 mm. The pronotum has a significant longitudinal seam. The fins of the eel are dark except for three wavy horizontal bands. The rest are yellow, so the elytra is yellow and black. The yellow and black flower big turnip, the shape of the adult is similar to the yellow and black flower turnip, and the cobweb is also yellow and black, but the size is larger and the length is 20-28 mm. The longitudinal alignment of the pronotum is not obvious.
Second, living habits Bean Phthalocyanine occurs in the northeast and north China one generation a year, in the Yangtze River Valley and the south of the Yangtze River Valley each year occurs two generations. The 5th instar larvae (fake crabs) winter in the soil. Overwintering larvae in the first generation of areas larvae in mid-June. Adults infested from late June to mid-August, and in August they were severely damaged. Overwintering adults in the 2nd generation area occurred between May and June, focusing on early sowing of soybeans and subsequent vegetable damage. The first generation of adult worms was the heaviest for soybeans. Afterwards, the amount of soybeans was gradually reduced and turned to vegetables. Adults are active during the day, and they are harmed by the clusters of bean plants. They lively and good climb. Adults quickly spread or fall on the ground when they are frightened, and can secrete a yellow liquid containing phthalocyanine from the ends of the legs. If they touch the human skin, they can cause swelling and foaming. Adults lay eggs at about 5 cm in the ground, with about 70 to 150 eggs per hole.
III. Comprehensive Prevention and Control Methods (1) Deep-turning the land in winter can expose the overwintering pseudo-parasitism to the surface of the soil and freeze or be eaten by natural enemies, reducing the number of insects in the leap year.
(2) Manually kill habits that use the adult colony and kill it with a net, but care should be taken not to touch the skin.
(3) Repelling adult worms At the beginning of adults, artificially catching some adult worms, using iron wire to form a few strings, and hanging around the field bean crops, can avoid adult fly pests.
(4) Chemical control 90% trichlorfon crystal 1000 times liquid spray was used during the adult stage.

Lycium barbarum polysaccharides(LBP)have been identified as one of the active ingredients responsible for biological activities. Polysaccharides are isolated from dried Lycium barbarum through the way of boiling water extraction.

The content of Goji polysaccharide is more than 6% in dried Goji, 1.5% in the Goji raw juice and 4.5% in the Goji concentrated juice.

In China, many experts have begun to research the medical theory and component of Goji since the early 1900s. In recent yaers, through abundant medical theory research, the experts here and abroad found that the Goji has the functions as folloing.

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Goji Polysaccharides

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