Scientific name Aularches miliaris scabiosus (Fab.) Orthoptera, Acridoidea. Alias ​​pointed yellow star. Distributed in Guangdong, Hainan, Guangxi, Guizhou, Yunnan, Sichuan and other provinces, it is one of the main bandits in the southwest region.
Host corn, rice, sugarcane and grass grass, mango, wolfberry, coconut, chestnut, casuarina, sweetgum, tung tree, camellia, star anise, palm tree, kaempferol, spore, pine, fir, oak, pumping , skunk and other crops, fruit trees and trees.
Characteristics of the damage Huang Xingyu uses adults and nymphs to injure the host's leaves, buds, flowers, and branchlets. The damage gradually worsened.
Morphological characteristics of adult male body length 37-48mm, fore wing length 36-45mm; female body length 49-58mm, 39-50mm fore wing length. The body is thicker, black or dark brown. Antenna filamentous black. The back of the head is dark brown, compound eyes are red-brown and has a wide yellow marking under compound eyes. The back of the pronotum is brownish-black on the back, yellow on the anterior and posterior edges, a pair of knob-like bumps on the leading edge are orange-red, and the lower end of the side-piece has l yellow vertical stripes about 3-5mm wide, which are connected to the yellow spots under the compound eye. The ventral side of the chest is yellow or orange. The forewings are yellow-brown in color and have many round orange-yellow patches, ranging in size from 70 to 82. The hind wings are dark brown and slightly apical. The first half of the abdomen is black in the first half and orange in the second half. The male tail must be under the reproductive plate and the female tail must be yellow. The head is big and short. Yan leans back and faces uplift, with only longitudinal grooves above the middle eye. The top of the head is short and wide, and the triangle has a prominent bulge at the lateral edge. The longitudinal groove at the front end is connected to the vertical groove with raised facial surface, and there is no lateral socket. Male touch color claws. The forewing is yellow and the veins are obvious; the pan is nearly quadrilateral. There are longitudinal black spots on the ventral, dorsal and both sides of the abdomen. Male mosquitoes are rod-shaped. Female mosquitoes are spindle-shaped. Egg length 0.75mm, long oval, black. The last instar larvae are 22-26 mm in length and light grayish brown. Head dark, half-constricted in the chest, chewing mouthparts. There are 3 pairs of soft finger-like protrusions on the upper and lower valve, and the bristles are set on the back of the body. The shape of the scorpion is similar to the larva. The front thoracodorsal front has a pair of short tubular breathing holes, and the abdomen sections of the back plate and the posterior edge of the web have a thorn l row.
Living habits Two generations of Liaoning born in winter, with the last instar larvae wintering at 25-25cm below the soil, and in the following year, larvae and feathers become adults. In June, spawning takes place. From early July to mid-August, larval activity takes place, in mid-August. At the end of the next month, the animals were larvae and eclosion. They entered spawning and hatched as larvae at the beginning of September. In October, larvae entered the mature state, and they ploughed into the earth.
Control methods (1) When overwintering larvae start harm, apply 2.5% phoxim powder or 5% insecticide-resistant soil to the surface of the soil, and then pour or dip into the soil or irrigate the water to make the liquid penetrate into the soil. (2) if necessary, watering 0.6% no name tyrant (matrine nicotine alcohol) 1000-1500 times liquid. (3) When it is found to be harmful, fresh leaves mixed with low-toxic pesticides can be piled on the ground to trap larvae and eliminate them collectively.
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