Short-term negative

Short-term negative

Scientific name Atractomorpha sinensis Boliva Orthoptera, Acridoidea. Alias ​​Chinese scorpion, pointed fried manganese, including the board. Distributed in Gansu, Qinghai, Anwei, Hebei, Shanxi, Inner Mongolia, Shaanxi, Shandong, Jiangsu, Zhejiang, Hunan, Hubei, Fujian, Guangdong, Guangxi, Sichuan, Guizhou.

In addition to rice, wheat, corn, tobacco, cotton, sesame, and hemp, the host is also responsible for various vegetables and crops such as sweet potatoes, sugarcane, cabbage, cabbage, radish, beans, eggplant, and potatoes.

The characteristics of adult insects and nymphs damage the leaves, affecting the growth of crops and reduce the value of crop commodities.

Morphological characteristics Adult body length 20-30mm, head to wing length 30-48mm. Green or brown (winter type). The tip of the head cuts, and the green-type self-recapitating eye has a pink pattern underneath the slant, which is in contact with the pink lines on the lower edges of both sides of the front and middle chest panels. The body surface has pale yellow knobs; the base of the hind wings is red and the ends are light green; the length of the fore wings exceeds about 1/3 of the hind leg end. Egg length 2. 9-3.8mm, long oval, slightly concave in the middle, one end is thicker blunt, yellow-brown to dark yellow, the egg shell surface was scaly pattern. Eggs are arranged obliquely within the egg mass into 3 - 5 rows, and there are glued silk wrapped into oocysts. A total of 5 instar nymphs: 1 instar nymph body length 0.3 to 0.5cm, grass green with yellow, front and midfoot brown, a number of brown rings, the body covered with granular protrusions; 2 instar nymph body color gradually changed Green, anteroposterior and hind wing buds are discernible; 3rd instar nymph pronotum is slightly concave and evenly straight; wing buds are visible to the naked eye; front and rear wing buds do not fold to cover half to all of the hindquarters; 4 instar nymphs prothoracic dorsal plate The center of the trailing edge protrudes slightly backwards, and the hind wing wing buds cover the forewing buds on the outside and begin to close on the back; the fifth instar nymph front protrudes to the rear from the front of the chest, resembles the adult, and the wing buds enlarge to cover the abdomen. Festival or slightly over.

Living habits occur mostly in eastern China. One year in North China, two generations in Jiangxi Province, winter eggs in the ditch. From late May to mid-June, it is the hatching period and from July to August it becomes adult. There are many habitats on both sides of the irrigation canal where the habitat is plentiful, the humidity is high, and the dicotyledonous plant is dense.

Control methods (1) Agricultural control. Shortfalls occur in severe areas. In the autumn and spring, the fields and weeds that are more than 5cm above the ground are eradicated, and the eggs are exposed to the ground to dry or freeze. The ground can be thickened again to increase the thickness of the cover soil. The bribery after hatching cannot be unearthed. (2) On the basis of forecasting, we will seize newly hatched grasshoppers in the fields and drainages, and concentrate on dicotyledonous weeds. When the spreading ability is extremely weak, the enemies can spray 1.5-2kg per 667m2, and can also use 20% speed. Kill 15ml of diced EC and spray 400kg of water. (3) Protecting natural enemies such as sparrows, frogs and major parasites for biological control.

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