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本文报道德国小蠊粪便粗提物的研究。结果表明:我们已从德国小蠊的粪便中提取出具有聚集活性很高的粗提物。其中雌性成虫粪便粗提物对种内雌性成虫的活性最高,且不同虫态,龄期和性别相互之间也有一定的活性,同时,对种间的美洲大蠊(Periplaneta americalaL.)的活性也很高,但对黑胸大蠊(P.fuliginosa Serville)则有一定的拒避作用。同时,将上述粗提物进行EAG反应测定结果表明:对种内的成虫雌性反应最强烈,抱卵雌虫次之,雄性第三;对若虫的5—6龄期较强,3—4龄期最弱,1—2龄期完全无反应。对种间的美洲大蠊和黑胸大蠊的反应强度与对种内的雄性成虫均相近似。通过对粗提物现场应用试验结果表明:诱捕效果不高,目前暂不宜作为防治手段推广应用,但有检测、监测和测报的使用价值。
This article reports the German cockroach faeces crude extract. The results showed that: We have extracted from the faeces of German cockroaches crude extract with high aggregation activity. The feces of females had the highest activity of the females in the species, and had certain activity in different stages of insects, age and sex, and the activity against the species Periplaneta americana (Periplaneta americana L.) High, but to black cockroach (P. fuliginosa Serville) there is a certain degree of rejection. At the same time, the above crude extract was subjected to EAG reaction and the results showed that the females in the species had the strongest response to the females, the females were the second and males the third, the nymphs 5-6 and 3-4 The weakest, 1-2 instars completely no response. The response to interspecific American cockroach and black-headed cockroach was similar to that of the male adult. The results of on-site application of the crude extract showed that the trapping effect is not high, so it is not suitable to be used as a prevention and treatment measure for the time being, but it has the value of detection, monitoring and measurement.