The scientific name is Sarbena lignifera (Walker) Lepidoptera, Nematode. Distributed in Guangdong, Hainan and Yunnan.

The host has many medicinal plants such as big-leaved wolfberry, lobular wolfberry fruit, junge, endangered olive, and terminalia.

Damage characteristics The larva eats and damages the leaves into a net shape, leaving only veins that affect plant growth and development.

Morphological characteristics Adult body length 7-10mm, wingspan 21-23mm, body gray yellow. The antennae of the female moth are filamentous and the male moth is feathery. Head position is low and cannot be seen from the back. One pair of tabs project forward and the shoulder flaps close to the back of the body. The forewings are yellow-brown in color. The leading edge and trailing edge are black. The mid-chamber ends have dark brown stripes at the edges to the outer edges; the hind wings are grayish white. Oval flat, white, surrounded by longitudinal ridges. The last-instar larvae were 14-16mm in length, pale yellow, and covered with dark brown patches on the head. There are many hairy tumors on the chest and abdomen, and a small white hairy cluster on the hair tumors. 4 pairs of abdominal feet.蛹 brown or dark brown.

Habits Habits 4 generations in Hainan, adult summer. The first generation occurred in February and March, the second generation in March and April, and the September-September period in the over-summer period, the third generation in October-November, and the fourth generation in January and January. The egg period is 9-11 days. Larval period 21-23 days. The flood season is 12-13 days. Adults emerged mating for several hours and began to mate. After 1-3 days spawning occurred on the back of the tip of the leaf, and 1 egg had 250 eggs. Larvae disperse or colonize after 4 instars. Larvae are 6 instar. After being matured, it can be used as a boil on the host or on the branches of nearby plants. Natural enemies have narrow-faced wasps.

Prevention and control methods The second generation of natural enemies of this insect is numerous and can be used without medicine. Attention should be paid to the protection of natural enemies. Control one or three generations can spray 90% crystal trichlorfon 1000 times or 50% dichlorvos EC 1500 times.

Body Treatments

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