共查询到20条相似文献，搜索用时 15 毫秒
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Dr. Alicja Buczek 《Journal of pest science》1993,66(1):6-9
Effect of temperature and relative humidity on embryonic development and egg hatch ofHyalomma marginatum Koch (Acari, Ixodidae) Effect of different temperatures (25, 30, 35, 40°C) and relative humidity (RH) levels (50, 75, 90%) on embryonic development and hatching ofHyalomma marginatum was investigated. The percentage of dead eggs and embryos, percentage of morphologically normal larvae, percentage of abnormally hatched larvae and percentage of larvae with morphological malformations were determined for each condition. Embryonic development and egg hatch proceeded at 25–35°C in all relative humidity levels tested. However 50% RH was unfavourable for these processes. The optimal conditions for larval development were found to be: temperature of 25–30°C and relative humidity of 75%. Under these conditions 72.7–87.8% of examined egg hatched into normal larvae. 相似文献
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H. Reye 《Journal of pest science》1986,59(7):121-122
A view is given on German, English, French and Spanish sayings which concern insects and arachnoids. They predominantly express a negative attitude of men towards these animals. 相似文献
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