Scientific name Eysacoris guttiger (Thunb.) Hemiptera, Polygonaceae. Synonyms Stollia guttiger (Thunberg). Its distribution ranges from Heilongjiang in the north, to Taiwan, Hainan, Guangdong, Guangxi, and Yunnan in the south, to the coast in the east, to Inner Mongolia, Ningxia and Gansu in the west, and to Sichuan and Tibet.
Host corn, rice, cotton, soybean, flax, sorghum, corn, sweet potato, eggplant, mulberry, figs and so on.
Injury characteristics, nymphs suck host stalk, leaf and ear sap, resulting in obstructed plant growth and development, grain is not full.
Morphological characteristics Adult body length 4.5-5.6mm, 3.3-3.8mm wide, head full black, a small number of individual head base with a light-colored short vertical lines, pale yellow, up to the back of the chest. Antennae light brown, with 5 knots. The prosthodontic plate has a short lateral angle. The front of the melasma in the service area of â€‹â€‹the dorsal plate can reach the front edge of the prosthodontic plate. There are no obvious anchor-shaped light spots on the end of the small scutellum, and there are 2 on the base of the scutellum. Yellow-white smooth round spot. The belly of the chest was white in color, black in dots, and black in abdomen. The internodes were obvious, and the valve was dark brown. Foot light brown, dense black dots.
Habits of life 4 years old in Shanxi Province, adults in the weeds, under the litter, overwintering, from March to April the following year began to injure, eggs produced on the back of the leaves, spikes, dozens of rows arranged in 1-2 longitudinal, Some are irregular and adults have phototaxis. In Jiangsu and Fujian, from mid-August to mid-September, the adults crawled on the soybean or petiole and did not love flying.
Prevention and control methods (1) When the adult concentrates in winter or after concentrating, the adult insects will use the pseudo-dead nature to shake the plants and cause the insects to fall and quickly collect and kill. (2) Severe spraying of 20% mitoate EC 1500 times.
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