島根大学農学部
ISSN:0370-940X
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島根大学農学部研究報告 16
1982-12-20 発行
日本産カマバチ類の生態に関する比較研究(1) : クロハラカマバチの捕食と寄生効果についての予報
Compatative Studies on the Biology of Dryinid Wasps in Japan(I) : Preliminary Report on the Predacious and Parasitic Efficiency of Haplogonatopus atratus ESAKI et HASHIMOTO (Hymenoptera : Dryinidae)
北村 憲二
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A dryinid wasp, Haplogonatopus atratus destroys the hosts by predation and parasitization (oviposition). Mortality by predation and parasitization was examened by exposing 30 nymphs for 24 hours to a single female. The great majority of wounded host nymphs were died within 1-3 days after predation. Eggs were not usually found in the hosts died of predation. Mortality by predation 17.6% in Laodelphax striatellus and 18.4% in Sogatella furcifera. Mortality by parasitism was 37.3% in L. striatellus and 36.2% in S. furcifera. The combined mortality by predation and parasitization reached up to about 60% in both host species.
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