Original paper

Pathogenicity of Entomopathogenic Fungi, Beauveria bassiana and Metarhizium anisopliae var anisopliae (Deuteromycotina: Hyphomycetes) against Eurygaster integriceps (Heteroptera: Scutelleridae)

[Wirksamkeit der entomopathogenen Pilzarten Beauveria bassiana und Metarhizium anisopliae (Deuteromycotina: Hyphomycetes) gegen die Schildwanzen-Art Eurygaster integriceps (Heteroptera: Scutelleridae)]

Kivan, M.

Entomologia Generalis Volume 30 Number 1 (2007), p. 63 - 70

17 references

published: Jul 4, 2007

DOI: 10.1127/entom.gen/30/2007/63

BibTeX file

ArtNo. ESP146003001015, Price: 9.90 €

Download preview PDF Buy as PDF

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 (1x106 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 signif cantly 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 signif cantly lower effect than those of the ARSEF fungal isolates and anisopliae was most virulent fungus to E integriceps adults.

Résumé

Laboratuvar koflullarında Süne, Eurygaster integriceps Puton 1881 erginleri üzerinde 4 Beauveria bassiana (Balsamo) Vuillemin 1912 isolatı ile 1 Metarhizium anisopliae var anisopliae (Metschnikoff 1879) Sorokin 1883 isolatının patojenisite denemeleri yapılmıfltır. ‹zolatlardan biri (Bb-1) E integriceps (Tekirdag-Türkiye) orijinli olup digerleri (sırasıyla, 5665, 1394 ve 6444) ARSEF koleksiyonlarından alınmıfl Eurygaster sp Laporte 1832 (Türkiye), Lygus sp Hahn 1833 (Fransa), Locusta migratoria Linnaeus 1758 (patentli, ticari ırk) orijinli ve M anisopliae (3540) ise Galleria mellonella (Linnaeus 1758) (ABD) orijinlidir. Her bir izolatın tek dozu (1x106 conidia/ml) erginler 10 ml’ lik fungal süspansiyona 5 saniye süre ile bandırılarak denenmistir. Uygulamadan 8 gün sonra ölüm oranı B bassiana’ da% 82.5 olurken M anisopliae’ da% 100.0 olarak gerçeklesmistir. Uygulamadan 12 gün sonrasında test edilen izolatlarda meydana gelen ölüm oranlarının muamele görmemis kontrole göre istatistiksel açıdan farklı oldugu saptanmıfltır.

Keywords

Eurygaster integriceps Puton 1881Beauveria bassiana (Balsamo) Vuillemin 1912Metarhizium anisopliae (Metschnikoff 1879)entomopathogenic fungi