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对浙江8个代表性地区的调查结果:①共发现蜚蠊卵荚寄生蜂3种,其中T.sp.和E.a.广泛分布,T.h.仅在少数地区个别点上发现:②黑胸大蠊卵荚被T.sp,寄生的占97.6%,被T.h.寄生的占2.3%,被E.a.寄生的偶见;美洲大蠊卵荚被E.a.寄生的占81.0%,被T.sp.寄生的占19.0%;③T.sp.在活卵荚中的寄生率最高(73.2%),死卵荚中最低(26.2%).卵荚壳居中(67.6%),合计寄生率58.4%;据现场调查,卵荚壳占69.0%,死卵荚占23.3%,活卵荚占7.7%,表明在卵英壳的寄生率最能反映一个地区寄生蜂寄生的实际情况;④厨房菜桌下、菜柜内外、抽屉内等是蜚蠊卵荚分布最多的场所,是防制重点;T.sp.在隐蔽场所对蜚蠊卵荚的寄生率低于暴露场所。此点在生物防制时应加以注意。
The survey results of 8 representative areas in Zhejiang: (1) Three species of parasitoids were found, including T. sp. And E. a. Widely distributed, T h Only found in a few areas a few individual points: ② black pheasant cockroach p. Sp, parasitic accounted for 97.6%, by T. h Parasitic accounted for 2.3%, by E. a. Parasitic occasional; American cockroach egg pods were E. a. Parasitic accounted for 81.0%, by T. sp. Parasitic accounted for 19.0%; ③ T. sp. The highest parasitism rate was found in live ovo pod (73.2%) and the lowest in dead pod (26.2%). According to field survey, oval pods accounted for 69.0%, dead pods accounted for 23.3%, live pods accounted for 7.7% The results showed that the parasitism rate in egg shell could best reflect the actual situation of parasitoid parasitism in a region; ④The place with the most pod distribution of cockroach under the kitchen table, inside and outside drawer, sp. The parasitism rate of cockroach egg pods in hidden places is lower than that of exposed places. This point should be paid attention to biological control.