Research on Biological Characteristics of Neoris haraldi Schawerda
[Objective] The present study investigated the biologic character of Nevris haraldi Schawerda.[Method]The biologic character of Neoris haraldi Schawerda were observed by point investigation in forest and indoor.[Result] Neoris haraldi Schawerda distributed in Shanxi, Gansu and Xinjiang, it has in Karamay one generation annually and mainly damaged Populus in Wuerhe Nature Reserve. In each egg mass contains 3 - 33 grain and hatches in the middle ten - day period of April next year, it will last 180 d . Neoris haraldi Schawerda eggs stay around Populus branches and tree trunks in the egg stage at winter, eggs are majority located in the branches on current year of southeast direction . The larval stage will last about 38 - 40 d, the mature larvae spin, cocooning and pupate under defoliation layer around the base of tree or in the dull grass layer in middle ten - day period of May.Eclosion started in the middle ten - day period of September, adult will last 3 - 7 d. Adults have strong phototaxy,and there are two peak periods for inducing adults , there is a small peak in 22:00 - 23 :00 0f Beijing time and the highest peak in 03:00 - 04:00 before dawn. The male phototaxy is higher than that of the female , female light induced ♀:male ♂ = 1∶8.66.
国家科技期刊平台
NSTL
万方数据
维普
