ゴキブリにおける紫外線の作用機構とチャバネゴキブリの防除実験

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1) Studies on the inhibitory effect on the oothecal formation in cockroaches revealed that UV radiation transmitted through the rubber-like cuticle of antacoria were accepted by photoreceptor cells with phaosome found in the nerve-cord-like structure under antacoria, and stimuli of the UV radiation recovered thee secretory activity of the corpora allata in female at the early stage of the oothecal formation, as a necessary consequence, the secretion of the collererial glands were inhibited. Also, it was confirmed that the inhibitory and delaying effects of UV radiation on the molting were occured by alternating of the secretory activity in the corpora arata in the nymphal stage. In adult of the German cockroach, it was found that the directory letal effect was cumulated and photo-recovery phenomena were not detected. These results did not suport a convetional hypothesis that the lethal effect in the insects was due to thymine dimers formed in DNA of the hypodermal cells by UV radiation. 2) Repelency of cockroaches to UV radiation was not supoted by auto-behavioral records for long time and foot traces on the smooky papers laid under the girmicidal lamps in the releasing test. 3) Two test of cockroach control with UV radiation, release experiment in the constant temperature room and field test in natural habitat of the German cockroach were performed. In release experiment, more than 70% of adults German cockroaches dead for 4 days. In the filed test, population size decreasd 7.6% for about 1 month.
1997-09-25

ゴキブリにおける紫外線の作用機構とチャバネゴキブリの防除実験

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