Chinese wolfberry planthopper

Also known as jaundice, belongs to the family Homoptera. The scientific name of pest PoratriozasinicaYangetLi. To harm crops such as wolfberry and Solanum nigrum.

In the identification of insect pests, adults and nymphs pricked and sucked juice on the back of leaves, shoots and buds, which led to the decline of plant growth and the yellowing of leaves. The secretion of honeydew causes soot disease in the lower leaves. The adult is about 3.8 mm long, yellowish brown to dark brown, with orange markings. There is a pair of papillae in front of the forehead; the basal and distal segments of the antennae are black and the rest are yellow. The front and middle legs are the same color as the body, the hind legs are slightly black and the thorns at the end of the tibia are black, and the rest of the chest and feet are yellow. There is a distinct wax-white transverse band at the base of the back of the brown abdomen. Wings transparent, wing veins yellowish brown. Egg orange-yellow, long oval, with filamentous egg stalk. The growing nymph is yellow and about 3 mm in length. There are 2 pairs of brown spots on the back, and the wing buds protrude significantly forward and outward. The edge of the abdomen is covered with white tasseled secretory ducts.

Living habits occur for 3-4 generations a year in the north. Adults overwinter under soil clods, bark cracks, litter branches or house walls, and overwintering adults begin to move when Chinese wolfberry sprouts in the following year. Adults often inhabit on the back of leaves, sucking juice and often swinging their bodies. Laying eggs on the back or surface of leaves, with filamentous egg stalks, and dense together. After the eggs hatch, the nymphs prick and suck up the juice in the original leaves or nearby branches. Adults and nymphs in the process of feeding, while smoking while secreting honeydew in the lower leaves, causing soot disease.

Control measures (1) destroy the overwintering site of adults during the overwintering period, clean up the litter and reduce the number of overwintering adults. (2) irrigating or turning the soil before the adults begin to move in spring to eliminate some of the insect sources. (3) in the period of high incidence of adults and nymphs, 80% dichlorvos EC, 90% trichlorfon crystal 1000 times, or 50% phoxim EC, 25% chlorpromazine EC 1000-1500 times, or 1% 7051 insecticidal EC, 2.5% Kung Fu EC 2000-3000 times, or 15% aphid lice EC, 2.5% Uranus EC 3000-4000 times spray. (4) to control other pests at the same time.