Original paper
Pathogenicity of Entomopathogenic Fungi,Beauveria bassiana and Metarhizium anisopliae var anisopliae (Deuteromycotina: Hyphomycetes) against Eurygaster integriceps (Heteroptera: Scutelleridae)
[Entomopatojen Fungus Beauveria bassiana ve Metarhizium anisopliae var anisopliae (Deuteromycotina: Hyphomycetes)'nin Eurygaster integriceps (Heteroptera: Scutelleridae) üzerinde patojenisitesi]
Müjgan Kivan
published: 7/4/2007
BibTeX file
RIS bibliography file
ArtNo.: ESP146003001006
Abstract
The pathogenicity of 4 fungal isolates of Beauveria bassiana (Balsamo) Vuillemin 1912 and 1 isolate of Metarhizium anisopliae var anisopliae (Metschnikoff 1879) Sorokin 1883 to adult sunn bug, Eurygaster integriceps Puton 1881 was tested under laboratory conditions.One isolate (Bb- 1) originated from E integriceps (Tekirdag, Turkey), other isolates (5665,1394 and 6444, respectively) originated from ARSEF collections, Eurygaster Laporte 1832 sp (Turkey), Lygus Hahn 1833 sp (France), Locusta migratoria Linnaeus 1758 (patented, commercialized strain) and one isolate (3540 )M anisopliae from Galleria mellonella (Linnaeus 1758) (USA). A single exposure concentration (1 x 106 conidia/ml) assay for each isolate was used by immersing the adults in 10 ml of a fungal suspension for 5 s. Mortality ranged from 40.0 to 82.5 % in B bassiana, while the mortality was 100.0 % in M anisopliae at 8 days after treatment. The test isolates caused a significantly different mortality compared to the untreated control at 12 days post-application.When the data of mortality was corrected by Abbott formula, the obtained isolate, Bb- 1 had significantly lower effect than those of the ARSEF fungal isolates and.anisopliae was most virulent fungus to E integriceps adults.
Abstract (French)
Laboratuvar koflullarinda Süne,Eurygaster integriceps Puton 1881 erginleri üzerinde 4 Beauveria bassiana (Balsamo) Vuillemin 1912 isolati ile 1 Metarhizium anisopliae var anisopliae (Metschnikoff 1879 ) Sorokin 1883 isolatinin patojenisite denemeleri yapilmifltir.<zolatlardan biri (Bb- 1 )E integriceps (Tekirdag-Türkiye) orijinli olup di¤erleri (sirasiyla,5665,1394 ve 6444 ) ARSEF koleksiyonlarindan alinmifl Eurygaster sp Laporte 1832 (Türkiye),Lygus sp Hahn 1833 (Fransa),Locusta migratoria Linnaeus 1758 (patentli, ticari irk) orijinli ve M anisopliae (3540) ise Galleria mellonella (Linnaeus 1758) (ABD) orijinlidir.Her bir izolatin tek dozu ( 1 x 106 conidia/ml) erginler 10 ml'lik fungal süspansiyona 5 saniye süre ile bandirilarak denenmifltir.Uygulamadan 8 gün sonra ölüm orani B bassiana'da% 82.5 olurken M anisopliae'da% 100.0 olarak gerçekleflmifltir.Uygulamadan 12 gün sonrasinda test edilen izolatlarda meydana gelen ölüm oranlarinin muamele görmemifl kontrole göre istatistiksel açidan farkli oldu¤u saptanmifltir. Abbott formülüyle ölüm oranlari düzeltildi¤inde,Bb- 1 izolati di¤er ARSEF izolatlarindan daha düflük etkili olarak ve M anisopliae E integriceps erginleri için en patojen fungus bulunmufltur.
Keywords
Eurygaster integriceps Puton 1881 • Beauveria bassiana (Balsamo) Vuillemin 1912 • Metarhizium anisopliae (Metschnikoff 1879) • entomopathogenic fungi