The scientific name is Dinara combusta (Walker) Lepidoptera. Alias ​​Takahata Club. Its distribution ranges from Inner Mongolia and Liaoning in the north, to Taiwan, Guangdong, Guangxi and Yunnan in the south, to the sea in the east, and from Sichuan to Yunnan in the west.
Host sorghum, corn, sugarcane, bamboo;
The larvae were eaten as nicks or holes, and the leaves of the whole plant were eaten when severe.
Morphological characteristics Adult body length 20-25mm, wingspan 49-68mm. The head is reddish-brown with a greyish yellow back of the neck plate and the front of the chest. The fins are gray-brown and lined with reddish-brown edges. The abdomen is orange or yellowish brown. Each side has a black spot on each side. The trailing edge each has a dark brown horizontal line, the female moth is from the end of the abdomen to the second section of dark brown; the front wings are light yellow, and the upper edge of the lower wing veins has a dark grey fine line in the upper and middle chambers. The eggs are green, semicircular, and later white, turning black when they hatch. The last instar larvae have a body length of about 60mm, a reddish-brown head, a yellow-green body, discontinuous black-brown strips on the sub-abdominal line, pale valve lines, yellow screens, black valve flaps, and dirty yellow hair on the body; Chest yellow-green, brown green ends; abdominal foot and body color similar to the end of white. Dark brown, spindle-shaped, with l-thorns on the ends.
Living habits Liaoning, Hebei, Beijing, 1 generation, with quail 6.5-10cm under the ground in the winter, Jubilee in late June - mid-July become adult. The adults were hidden during the day, and they were nocturnal. After mating, the eggs were laid near the main veins on the back of the leaves of sorghum and corn. Each bird produced 80-410 eggs. The egg period was about 5 days. The larval period was about 30 days. The total age was 6 years. In the middle and late of the year, the last-instar larvae spit in the soil to bind the soil particles for wintering. The worms are wet and dry. In July, the temperature is low and the humidity is high.
Control methods (1) The larvae are large and inactive, and can be manually captured. (2) If necessary, spray 1.5% methyl parathion powder, 2kg per 667m2, or spray 2.5% of deltamethrin buttermilk oil 20-30ml, 100L of water. The use of drugs can no longer be increased so as to avoid phytotoxicity.
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