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1972—1976年间,在渤海湾沿岸62个县(区)内查出植食性蛴螬36种,其中分布广、为害重的优势种是华北大黑鳃金龟、铜绿丽金龟、阔胸犀金龟、暗黑鳃金龟、黑绒鳃金龟等。通过系统饲养和田间调查明确:华北大黑鳃金龟、阔胸犀金龟为两年一代,成、幼虫相间越冬:铜绿丽金龟、暗黑鳃金龟为一年一代,以幼虫越冬。此外还对上述四虫的一些重要的生物学特性进行了研究。根据对生活史研究,总结了“双春单秋看趋势,虫量降水定程度”的华北大黑鳃金龟发生量预测法,对于防治该虫具有一定的实际意义。
From 1972 to 1976, 36 species of herbivorous emu were found in 62 counties along the coast of the Bohai Sea. Among them, the dominant species were widespread, dominant species were N. gigantica, Gill beetles, black gill beetles and so on. Through systematic feeding and field surveys, it is clear that in North China, the black-gilled beetle and the broad-billed rhinoceros beetle are two generations old and overwinter with larvae. The copper beetle is a year old with the larvae overwintering. In addition, some important biological characteristics of these four insects were also studied. According to the study of life history, the forecasting method of the occurrence of Scleractophaga in North China, which summarizes the trend of double spring and autumn, the degree of precipitation of insects, has certain practical significance for the prevention and control of the insects.