Clanis bilineata tsingtauica Mel1 Lepidoptera, genus Moth. Alias ​​hawk moth. In addition to the end of Tibet, distribution has occurred in all other provinces and regions.
Host beans, beans and other legumes.
The larvae feed on the damaged leaves. In severe cases, the leaves of the entire plant are eaten, and the pods cannot be scabbed.
Morphological characteristics Adult body length 40-45mm, 100-120mm wingspan. Body, yellow-brown wings, head and chest have a thin dark brown back line, abdomen on the back of each section after the brown and black stripes. The fore wings are long and narrow, with a large semicircular brownish green spot near the center of the leading edge, a pale white dot at the transverse vein of the middle chamber, and the horizontal and midhorizontal lines are not obvious, and the horizontal lines are brownish green ripples along the R. : There are brownish-green longitudinal bands, fan-shaped near the outer edge, a dark brown diagonal twill at the top corners, which divides the top angle into two equal halves; the dark brown hind wings, and super-stained spots above the base. Eggs are ellipsoidal, 2-3mm, yellowish-white at first, brown at the end. The mature larvae have a body length of approximately 90 mm, yellow-green, and small yellow bulges on the surface. Chest orange brown. On each side of the abdomen, there are seven yellow-and-white stripes sloping to the back, one on the back of the hip. It is about 50mm long, 18mm wide, reddish-brown. The head mouthpiece is prominently protruding and slightly hooked. The jaws are closely attached to the body and the ends are exposed. There are a stomatal groove in front of the ventral part of the abdominal segment 5-7. When the abdomen is active, it can make a slight noise due to friction. The hip spine is triangular and has many granular protrusions. The other subspecies of this species is Clanis bilineata bilineata (Walker), distributed in Zhejiang and South China. The color of the fore wings is deep, only one generation a year. Only the leguminous genus and the plants of the genus Mucuna are found.
Life habits occurred in 1 generation in Henan, Hebei, Shandong, Anhui, and Jiangsu provinces, and 2 generations in Hubei province. All of them were mature winter larvae in the 9-12 cm soil layer. In late spring, we moved to topsoil. In the first-generation region, it is generally released in mid-June, and in early July, it is the peak of emergence. From mid-late July to early August, it is the fecundity of adult worms. From late July to late August, it is the larval stage. In September, The larvae matured in the early winter. During the second generation period, in the middle and mid-May, the first-generation larvae occurred in late May to early July. The second-generation larvae occurred from late July to early September; the whole year was endangered in the middle-late August. The most fierce, after mid-September, mature larvae enter the soil through the winter. Adult fly is very strong, but the phototaxis is not strong, likes to lay eggs in the open and densely growing soybean fields, generally scattered on the back of the 3rd and 4th bean leaves, with 1 or more leaves per leaf, and the average female lays 350 eggs per female. . Egg period 6-8 days. A total of 5 instar larvae. After the winter, the mature larvae phlegm when the surface soil temperature reaches about 24°C, and the flood season is 10-15 days. The larvae were mostly hidden in the back of the leaves during the day before the fourth instar, and they were fed at night (they were fed on a full day's day); the larvae of the 4th to 5th instar were damaged on the stems of the bean stalks during the daytime and were often damaged by the transgenic plants.
Control methods were sprayed at the third instar larval stage, such as 50% phoxim emulsion 1000 times or 20% cypermethrin 2000 times, 21% chlorpyrifos (enriched cyanmar emulsion) 3000 times. Have better results.
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