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What are the control methods for the rice green leafhopper?

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Scientific name Inazuma dorsalis (Motschulsky), synonym Recilia dorsalis (Motschulsky), belonging to Homoptera, family Cicadellidae. Distributed in the rice-growing regions south of the Yellow River. Hosts include rice, corn, sorghum, millet, sugarcane, wheat, barley, etc. Occasionally damages sesame, citrus, etc. Damage characteristics: adults and nymphs pierce and suck sap on rice leaves and leaf sheaths, inhibiting the growth and development of damaged plants, causing leaves to turn yellow or the whole plant to wither.

Scientific name Inazuma dorsalis (Motschulsky), synonym Recilia dorsalis (Motschulsky), belonging to Homoptera, family Cicadellidae. Distributed in the rice-growing regions south of the Yellow River.

Hosts include rice, corn, sorghum, millet, sugarcane, @#@245@#@, barley, etc. Occasionally damages sesame, citrus, etc.

Damage characteristics: adults and nymphs pierce and suck sap on rice leaves and leaf sheaths, inhibiting the growth and development of damaged plants, causing leaves to turn yellow or the whole plant to wither. Transmits rice dwarf disease, rice ragged stunt virus, etc.

Morphological characteristics: adult body length 3-4 mm, light yellow, with pale brown markings. The front and middle part of the crown has 2 light yellowish-brown spots, and there are 2 more small light yellowish-brown spots behind them. The scutellum is light gray, with 1 light yellowish-brown spot at each basal angle. The forewings are light grayish-yellow, with lightning-shaped yellowish-brown broad bands, the color around the bands is darker, and the characteristics are quite obvious. The ventral side of the thorax and abdomen is yellow-white, scattered with dark brown spots. Egg length 1-1.2 mm, oval, slightly curved, initially white, later turning yellow. Nymphs have 5 instars in total. The final instar nymph is 3.5 mm long, yellow-white. The head, dorsal side of the thorax, legs and sides of the last 3 abdominal segments are brown; the dorsal side of abdominal segments 1-6 each has 1 pair of brown markings; wing pads reach the 4th abdominal segment.

Life habits: 5 generations per year in Zhejiang, 5-6 generations in Sichuan, overwintering as eggs in the tissue of the midrib on the underside of host leaves. In Taiwan, China, more than 10 generations per year, and all stages can be seen throughout the year. In the middle and lower reaches of the Yangtze River rice region, damage is most severe from September to November; in eastern Sichuan, from late August to early October; in Taiwan, China, damage is severe in June-July and October-November. Female lifespan 20 days, male about 15 days. Pre-oviposition period 7 days, about 80 eggs laid. Egg duration 10-14 days, nymph duration 11-14 days, and the nymph duration from October to November is about 37 days.

Control methods: (1) See the green rice leafhopper. (2) When controlling the green rice leafhopper, this insect can be controlled at the same time.

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