The scientific name Tetanops sp. is an alias beetroot. Distribution in Inner Mongolia and so on. The scientific report of T.myopaeformes in the U.S. reported by the United States is the same as that in China.
Host beet.
The disease is characterized by larvae clustering around the roots of beetroots, feeding on the beetroot tissue or young roots on the roots of the beetroots, resulting in channel-like or black spots on the victim's site, resulting in poor plant growth or wilting.
Morphological characteristics Adult body length 8mm, wingspan 12mm, body yellow gray, compound eye brown red, monocular 3, the front of the wing has a brown markings, the head is slightly wider than the chest, chest and back plate two black spots horizontal. Eggs 1mm long, long oval, milky white, slightly pointed at both ends. The larvae have a body length of 8-12mm, conical, milky white, a total of 11 sections, section 10 is longer, the front port is hooked dark brown, and the end of the abdomen has a pair of black small protrusions. The cocoon is 8mm long, 2.4mm in diameter, brownish-red, with a pair of small black protuberances at the end.
Living habits 1 generation in western Inner Mongolia. August-September larvae drilled into the 40-60cm deep soil layer in the winter, in mid-April, the following year rose to 20-30cm soil layer in the Huadu, 17-18 days of the flood season, in mid-May to late July to early July The emergence of adult eclosion. After unearthing, mating and spawning occurred after 2 days, and the eggs were prolific in 1cm soil layer. Each female lays about 200 eggs, one pile every 30-50, and hatches as larvae for 7 days to find the fine roots of sugar beets. From June until mid-August. During the larval period of 50 days, the temperature and soil moisture in September decreased, and the larvae migrated to winter in 60 cm soil.
Prevention and control methods (1) Reasonable rotation and dumping. (2) Timely soil loosening after the eggs are found in the field, exposing the eggs to sunlight or changing the hatching conditions of the eggs, has certain control effect. (3) When the adult grows, spray 80% dichlorvos EC 1000 times or 50% Malathion EC 800 to 1000 times. (4) When the larvae are seriously damaged, the roots are irrigated with 50% phoxim EC 1000 times from late June to early July, and the ovulation and young larvae have good effects.
Alcohol And Ethanol Enzymes,Ethanol Enzymes,Alcohol Enzymes,Enzymes For Ethanol Production
Sunson Industry Group Co., Ltd , https://www.sunsonchinaenzymes.com