Tea tree fold with yellow tussock moth

Scientific name Artaxa flava (Bremer) Lepidoptera, poisonous moth family. Synonyms Euproctis flava (Bremer). Alias ​​yellow tussock moth, persimmon yellow tussock moth, spruce tussock moth. Distribution of North China, Northeast China, Shandong, Henan, Shaanxi, Sichuan, Jiangsu, Zhejiang, Fujian, Anhui, Hubei, Hunan, Jiangxi, Guangdong, Guangxi, Guizhou.

Host fruit, tea, apple, betel nut, jellyfish, pear, hawthorn, cherry, peach, plum, plum, persimmon, coriander, pomegranate, chestnut, hazelnut, rose and other fruit and medicinal plants.

The larva eats buds and leaves, eats the leaves into nicks or holes, eats the leaves seriously, and eats the skin of the shoots.

Morphological characteristics Adult females are 15-18mm long, 35-42mm wingspan, slightly smaller, yellow or light orange. Antennae dentate, male than female; compound eye black; lower lip yellow orange. The fore wings are yellow, and the middle part has a brownish-brown transverse band. From the leading edge of the outer oblique to the posterior edge of the middle chamber, the inner oblique angle ends at the trailing edge to form a fold belt. With a light yellow line on both sides of the rim, winged area with brown dots 2, located near the outer edge of the top corner and the central front. No markings on the hind wings, light base color, dark outer edges. The bristles are light yellow. The egg is semi-circular or oblate, 0.5 to 0.6 mm in diameter, yellow, tens to hundreds of pieces, arranged in 2-4 layers, and the egg pieces are oblong and covered with yellow hair. The larvae are 30-40mm long, with dark brown heads and fine hairs. The body is yellow or orange-yellow. On the back of the chest and the 5th and 10th belly knots are black stripes on each side. The chest is wide and narrow at the front, the lower side of the chest is connected with the abdominal line, and the fifth and the 10th belly are narrow before the belly. After the width, to the eighth abdominal segment two lines are joined to the back. The hips are black and the back of the eighth quarter to the abdomen is black. The abdomen of the first and second abdomen sections has dark spots on the back of the ellipse, and the hair tumors grow on dark spots. The hairy tumors are dark yellow or dark brown on each solitary body, in which the tumors on the back of the l,2, and 8 abdominal segments are large and black, and the hairy tumors are yellow brown or light dark brown hairy. Abdominal line is l black vertical band. Chest foot brown, shiny. The gastropods are well developed, pale black, sparsely light brown hairs. The top line is orange and thin, but it is wider at the middle and posterior thoracic nodes and is interrupted by dark spots on the back of the body. Valve light orange, valve dark brown near-round. Gastropods, hip toe hooks, single-sequence longitudinal, 39-40 toe hooks. The dragonfly is 12-18mm long, yellow-brown, long thorns and hooked at the end. The dragonfly is 25-30mm long, oval, gray-brown. Life habits are two generations old, with 3-4 instar larvae nesting under tree holes or trunk gaps, weeds, deciduous and other miscellaneous objects overwintering in winter. The mature larvae of the mature larvae end up at the end of May, and the pupa period is about 15 days. In the middle and late June, overwintering adults emerged and copulated spawning. The egg period was about 14 days. The first generation of larvae hatched in early July, and the old mature pupae were damaged by the end of August. The pupal period was about 10 days. The first generation of adults mated and spawned in September. The second generation of larvae appeared in late September, and it was harmful to the end of the fall to overwinter in 3-4 larvae. After hatching, the larvae infested many clustered leaves and spit on the branches of the silkworms. When they were old, they tended to cluster at the base of the trunk and formed a variety of crevices, which was more than feeding in the morning and dusk. Adults live in a nocturnal manner, eggs are prolific in the back of the leaves, and 600-700 eggs per female are produced. There are more than 20 parasitic parasites such as parasitic flies.

Control methods (1) Remove fallen leaves and weeds in winter and scrape rough bark to kill overwintering larvae. (2) Remove the eggs in time and kill the cluster larvae. (3) Tea tussock moths are used for the prevention and control of the young larvae in the injurious period.

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