Fikret DEMİRCİ, Murat MUŞTU, Erhan KOÇAK

Mortality effects of Isaria farinosa (Holm.) and Beauveria bassiana(Balsamo) Vuillemin (Sordariomycetes: Hypocreales) on Aelia rostrata Boh. (Hemiptera: Pentatomidae)

Entomopatojen türler, Isaria farinosa (Holm.) ve Beauveria bassiana (Balsamo) Vuillemin (Sordariomycetes: Hypocreales)’ nın %70 ve %95 nem, 1x10 6 ve 1x10 8 konidi yoğunluğunda (ml-1) Aelia rostrata Boh. (Hemiptera: Pentatomidae) erginleri üzerine etkileri incelenmiştir. Denemeler 27±1 °C’de 16 saat aydınlık 8 saat karanlık koşulları içeren iklim odalarında yürütülmüş, inkubasyonun 6, 9 ve 12. günlerinde bireylerdeki ölüm oranları belirlenmiştir. Entomopatojenlerin her ikisi de 1x10 8 konidi ml-1 yoğunlukta ve %95 nemde daha yüksek etkiye sahip olmuşlardır. Funguslardan B. bassiana, I. farinosa’ ya oranla daha yüksek ölüme neden olmuştur. Yüzde 70 nemde ve 1x10 6 konidi ml-1 yoğunlukta I. farinosa inkubasyonun 12. gününde %70 ölüme neden olurken, B. bassiana inkubasyonun 9. gününde %100 ölüme neden olmuştur. Yüzde 95 nemdeise B. bassiana inkubasyonun 9. gününde her iki konidi yoğunluğunda da %100 ölüme neden olurken, I. farinosa ise inkubasyonun 12. gününde, 1x10 8 konidi ml-1 yoğunlukta ancak %75 ölüme neden olmuştur

Isaria farinosa (Holm.) ve Beauveria bassiana (Balsamo) Vuillemin (Sordariomycetes: Hypocreales)’nın Aelia rostrata Boh. (Hemiptera: Pentatomidae) üzerine etkileri

The effects of entomopathogenic isolates, Isaria farinosa (Holm.) and Beauveria bassiana (Balsamo) Vuillemin (Sordariomycetes: Hypocreales), were investigated on the adult stages of Aelia rostrata Boh. (Hemiptera: Pentatomidae) under of 70% and 95% relative humidity and with 1x10 6 and 1x108 conidial concentration (ml-1). These experiments were conducted in a climatic chamber with 27±1°C and 16 h. light and 8 h. dark photoperiod, and the mortality percentages were determined in the 6th, 9th and 12th days of incubation. The result of experiments showed that both of the entomopathogens were more effective in 95% R.H. and 1x10 8 conidial concentrations (ml-1). At 70% R.H. and 1x108 conidial concentrations (ml-1), while I. farinosa caused 70% mortality in the 12th day of incubation, B. bassiana caused 100% mortality in the 9th day of incubation. It was concluded that B. bassiana isolate was more effective than I. farinosa isolate on wheat stink bug, A. rostrata.

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