Scientific name Clania minuscula Butler belongs to the order Lepidoptera. Alias ​​tea bag moth, tea bagworm, tea, etc. to avoid debt. Shandong, Shanxi, Shaanxi, Jiangsu, Zhejiang, Anhui, Jiangxi, Guizhou, Yunnan, Fujian, Taiwan, Hubei, Hunan, Guangdong, Guangxi, Sichuan and other provinces. The density of the office cloth is relatively high, which often causes great losses. Host plants such as tea, oil tea, orange, apple, cherry, plum, apricot, peach, plum, grape, mulberry and so on. Injury traits larvae eat leaves, tender shoots, or stripping branches and fruit skins in the sac, resulting in partial bald baldness. The insects are concentrated and harmed. Morphological characteristics adult female moth body length 12-16mm, foot degeneration, no wings, swish-like, body milky white. The head is small and brown. The abdomen is hypertrophic, with a thin body and can see the eggs in the abdomen. The back chest and the 4-7th belly section have light yellow hairs. Male moth body length 11-15mm, wingspan 22-30mm, dark brown body wings. The tentacles are twins. Chest and abdomen scales. The veins on the two sides of the fore wing veins are slightly darker, with two square transparent spots in front of the outer edge. The egg length is about 0.8mm, width 0.6mm, oval, light yellow. The larvae are 16 to 28 mm in length, with body hypertrophy, yellow-brown head, and dark brown markings on both sides. The back of the chest was yellowish-white, with 2 brown vertical lines on the dorsal side and 1 light brown spot on both sides of the back of the chest. The abdomen is brownish-yellow, with 4 small black protrusions on the back of each section, forming an "eight" shape.蛹 Female spindle-shaped, 14-18mm, dark brown, wingless buds and tentacles. Dark brown, 13mm long. The sheath is spindle-shaped, dark brown, silky, and decorated with leaf crumbs or crushed skin. When slightly larger, it forms longitudinally arranged twigs, which vary in length and length. The female mature larvae in the protective sac were about 30 mm long and the males were 25 mm long. Prevention methods (1) When collecting flowers or managing tea gardens, the insect sac was found to be removed in time and burned in a concentrated manner. (2) Pay attention to protecting natural enemies such as parasitic bees. (3) To control the spraying of 90% crystal trichlorfon 800-1000 times or 80% dichlorvos EC 1200 times, 50% killer pine EC 1000 times, and 50% phoxim EC 1500 times during the young larvae. 90% Bataan WP 1200 times, 2.5% deltamethrin EC 4000 times. (4) Promote the biological control of the killing of Bacillus or Bacillus sp. with 80% live spores. Rollators Walkers,Adult Rollators,Lightweight Rollator,Elderly Rollators Walkers Jiangyin Huashi Medical Equipment Co.,Ltd , https://www.medicalwellcare.com
Living habits Guizhou generation 1 generation, Anhui, Zhejiang, Jiangsu, Hunan and other provinces l l 2 generations, Jiangxi 2 generations, Taiwan 2-3 generations. Most of the 3-4 larvae, individual old larvae overwintering in the protective sac on the leaves. During the period from February to March in Anhui and Zhejiang, temperatures around l0°C, overwintering larvae began to move and feed. Due to the high insect age and high food intake, they became one of the main pests in early spring of tea gardens. After mid-to-late May, the larvae gradually reduced their larvae. In early June and mid-July, adults emerged and spawned. The first generation larvae occurred in June-August, and the most serious damage occurred in July-August. The second generation of overwintering larvae occurred in September, with minor damage before winter. Lifetime of female moth is 12-15 days, male moth is 2-3 days, egg period is 12-17 days, larval stage is 50-60 days, overwintering larvae are more than 240 days, female pupa period is 10-22 days, and male pupa is 8-14. day. Adult pests emerged in the afternoon, and male moths liked to be active in the evening or early morning. They depended on sex-seeking substances to find female moths. The female moths could mate on the day after emergence. They lay eggs 1-2 days after mating. Each female produces an average of 676 grains, and each individual has a high of 3000. Granules, females shrink and die after laying eggs. The larvae mostly take egg shells on the afternoon of hatching l-12 days, then climb on the branches or leaves to the nearby branches and leaves, spit filaments cling to broken leaves to create a protective sac and start feeding. After the larvae are matured, they are invaded by insects in the protective sac. Natural enemies include cricket moth crickets, pine caterpillar crickets, mulberry locusts, thigh bees, and wasps.