Scientific name Dendrothrips minowai Priesner Thysanoptera, Thripidae. Alias ​​tea Hummer, spiny tea Hummer. Distribution of Guangdong, Guangxi, Hainan, Guizhou and other provinces.
Host tea, camellia.
Injury features harm young shoots.
Morphological characteristics Female adult body length 0.8 to 1.1mm, body width is 1/4-1/3 of body length, nearly dark brown. The head and compound eyes are dark brown and three monoculars are arranged in a triangle. The tentacles were 8 knots, 3 and 4 knots each had a sensation cone, and 6 knots were felt cone-shaped and longer than the distal segments of the antennae. The length of the chest and head is two times as long as the length and dark brown. The breasts of the thoracodorsal plate are not obvious, and the fins are twice as long as the anterior chest and 1.3 times as wide as the anterior chest. The wings are narrow and slightly curved, the back edge is straight, the fore wings are light black, the central part of the wings close to the base has a white transparent strip, the leading edge of the marginal hair is short and thin, and there are less than 30 roots. It is evenly distributed from the white transparent strip to the tip of the wing. On the wing surface of the wing, there is a wing vein on the wing, and the upper vein wing is not clear or has two roots. The abdomen is dark brown and dark on both sides. It has 10 knots and is light in the center. When it is closed, there is a yellow-white spot in the back. There are 8 ring-shaped short loops at the end of the 9th abdominal segment and 4 short loops at the end of the 10th abdominal segment. Eggs are oval in shape, milky white and translucent. The nymph of the first instar nymph is translucent milky white. Second instar nymph flat fertilizer, body color shift from light yellow to orange red, compound eye black and red: the third instar nymph (pre-pupa) body shortened, orange-red, compound eyes, the front edge with a half moon red halo, monocular began to appear, tight tentacles Attached to the back of the head, bent to the head, and the second ventral section of the anterior wing bud. The fourth-instar nymphs (cockroach) had their wing buds growing, and their abdomen internodes were distinct. The sides of sections 3-8 were saw-toothed, and the distal end of the abdomen was markedly bristle with four short hairs.
Life habits are unknown in the annual algebra, overlapping generations, May-June complete generation of 18-25 days, 10-10 November 35-40 days. The nymphs and nymphs tend to be tender and tender. They like to live in the foliage of the young leaves and eat. When the sun is strong, they inhabit in the shade of the tea tree, in the lower shade or in the bud seams, and many eggs are produced in the lower leaves of the leaves. Each female lays eggs. About 30 grains, most of them are produced on the first leaf under the bud, and the egg period is 5-7 days. Adult eclosion, mating, and spawning were most abundant at 8-10 am, and nymphs were mostly hatched before and after dusk or at 8-9 am. The newly hatched nymphs are clustered and not very active, with more than 10 to tens of insects per leaf. After the nymph enters the third instar, it no longer feeds, crawls along the branches and climbs up to the surface of the dead leaves, and the inner layer of the inhabit of the tea pods larvae. Adult life is 7-10 days.
Prevention methods see Tea Turmeric.
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