Prevention and Control Method of Pepper "Two Scorpions"

The "two pods" of the peppers, tea sorghum and cinnabar, are pests that injure pepper's young leaves. Widespread throughout Guangxi. The oviducts and pupa clusters were fed on the young leaves. After the plants were damaged, the brown leaves were shiny and the leaves were distorted and drooped. When they were severe, they stopped growing and the leaves fell off. The cinnabar leafhopper also sucked sap from the back of the leaves of the sorghum and Ruoqiang. The victim's leaves had yellowish-white spots, and when the leaves were severe, the leaves turned yellow and fell off. "Two quail" food is very miscellaneous, in addition to harm pepper, but also harm melons, beans, tomatoes and other crops.
First, the main features of the form. (1) Tea-yellow pheasant: Its male body is 0.19 mm long and has an approximately hexagonal body. The body is light yellow or yellow-white, translucent, shiny, and conical at the end and amber in color. The front foot has 3 to 4 pairs of bristles, which are long and thick. The female body is about 0.21 mm in length and has a wide oval body. Its body color resembles that of a male mantis, its body segments are not obvious, and its body back has a longitudinal leucorrhea. The legs are short, with 4 pairs of bristles on the ventral surface of the hind foot. Eggs, long oval, 0.1 mm long, milky white translucent, egg table with vertical arrangement of white knob-like protrusions of 5 to 6 lines. Cubs are oval, light green and have a pair of bristles at the end of the abdomen. If the pupa is a quiescent development stage from the development of pups to pupa, it is 0.15 mm in length and has an oblong shape. The body covers the skin of the cub. (b) Cinnamomum cinnamomea: The female pheasant is greenish black or yellow, and there are long, stripe-shaped spots in the middle of both sides of the body. The back is elliptical and about 0.46 mm long. The male's back is nearly triangular, smaller than females and 0.26 mm long. Oval, colorless at the time of first birth, dark-graded to a dark color, with a red eye diameter of 0.13 mm before hatching. The young hatchling is colorless and transparent at the beginning of hatching, and is dark green after eating. Red eyes, round body, only three pairs of feet, if the early stage Ruoqiang and late Ruoqiang, there are four pairs.
Second, a brief life habits. (1) The Camellia sinensis was observed in Guangxi in the anniversary. It seems that there is no apparent overwintering phenomenon. In the greenhouse, 25 to 30 generations can be produced in one year. Chengyu grows and reproduces normally in relatively dry weather, but hatching of the eggs requires high humidity. The females lay more eggs in the depressions on the back of the young leaves. A female quail usually lays more than one hundred eggs, mainly hereditary reproduction. (b) Cinnamomum cinnabarinus, who also has more than 20 generations in one year, and spends wintering on bark or cotton litter. When the average temperature is between 7 and 130C, females spawn. The most suitable temperature and humidity (22 ~ 270C and relative humidity below 75%), generally 5 to 7 months of drought and less rain is divided into heavy damage. The female adults lay their eggs on the back of the leaves, and if they can crawl, they can also lead the wire and droop by the wind.
Third, prevention and treatment methods. (a) Elimination of overwintering sources. After harvesting vegetables such as Daejeon, it is necessary to remove the weeds in the fields and the fallen leaves. In plastic greenhouses and greenhouses, the population of Astragalus membranaceus is relatively low in winter and should be eradicated in time to prevent outgrowth. (b) Chemical control. The "two gongs" have a short life cycle, rapid reproduction and many generations. We must adhere to the principles of early treatment, ovicide and early infancy. The spraying focused on the young part of the plant and the back of the leaf. In the early days of the field, it can be used as follows: 125% extinction manganese WP or 35% chlorate EC or 40% mercurite EC or 20% oxazine EC 1000x; 25% NISOL or 75 % Kete EC 2000 times; 3 Uranus EC 3000 times spray. The above pesticides are preferably used alternately, sprayed once every 7 to 10 days, and sprayed three times to control their damage. Dicofol, due to its resistance to the tea plant, is not suitable for reuse; dichlorvos, malathion, dimethoate, and omethoate have little effect on control and should be avoided, so as not to delay timing.