Knowledge Title: Strip

Other Title: Proceras venosatus

Knowledge Content:

    The insect Lepidoptera is a Pyralidae. Also known as sorghum and sugar cane strips. Crop pests, mainly for sorghum, corn, sugar cane, but also for the harm of millet and hemp. Adult insects are 10 to 14 mm long, wings 24 to 34 mm, grayish yellow. The front and veins have black-brown stripes, the middle chamber has 1 small black dot, and the outer edge has 7 small black dots. Old cooked larvae are 20 to 30 mm long and white to pale yellow. Summer, winter two types, summer larvae abdominal section back has 4 black-brown spots, raw hair, arranged into squares, the first two spots oval, the last two near rectangular; In China is mainly distributed in Liaoning, Hebei, Henan, Shandong, Jiangsu, Hubei, Fujian, Guangdong and Taiwan provinces. Also seen in Vietnam, Indonesia, the Philippines, India, Pakistan, Sri Lanka and Egypt. The first hatching larvae cluster sorghum heart leaf clumps bite the young leaves, slightly larger into irregular small holes. After 3 years of age, that is, the original damage between the leaves of the stems decay into the stem, the early stalks of early bite growth point sedated to cause a dead heart. The decaying stem is mostly in the middle of the interstitas, and the stem is taken in a ring shape. Spike larvae dive into the first section of the spike, biting the stem for a section, affecting the grout, forming the grain. When old cooked, it is thinenned in the stem. In North China, there are 2 generations in a year, and 4 to 5 generations in South China and Taiwan. Winter with old cooked larvae in sorghum, corn straw and in the inner or stalks of sugar cane leaves. North China's first generation of larvae for the peak period in late June, the second generation of larvae for the peak period in mid-August and late August. Spring rain is more, high humidity is favorable to the occurrence of the first generation. The adult insects are out day and night, and they have a light-scenting nature. Blocked eggs are prolific in the base and middle of the leaf back and are arranged in a fish-scale arrangement. Natural enemies are mainly red-eyed bees and black egg bees. Prevention and control measures include the treatment of straw, the elimination of winter larvae, the application of pesticides such as parathion, cthane, siviline, acetylamide phosphorus or radon during the egg season. The sorghum is disabled on the enemy hundred insects, enemy fear. The cane area can be used for badan, insecticidal, enemy pyrethroids, diamine parathion or pyridine.