Natural levels of fungal infections in grasshoppers in Northern Benin

Shah, P. A.; Godonou, I.; Gbongboui, C.; Lomer, C. J.

doi:10.1080/09583159409355341

Cited by 20 publications

(8 citation statements)

References 11 publications

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“…A study in which egg pod surveys, live insect counts, and M. Jlavoviride incidence are being monitored over aperiod of several years in the Malanville area should give some clues as to the impact of the fungus on its host population. Results of the first 2 years'data are given in Shah et al (1994).…”

Section: Availability Of Isolatesmentioning

confidence: 99%

DEVELOPMENT OF METARHIZIUM SPP. FOR THE CONTROL OF GRASSHOPPERS AND LOCUSTS

Lomer¹,

Prior²,

Kooyman³

1997

Mem. Entomol. Soc. Can.

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Memoirs of the Entonological Society of Canada l7l: 265-286 (1991) Four research programmes are investigating the entomopathogenic fungal genera Metat hiziunt and Beauveria for locust and grasshopper control in Africa. ln the LUBILOSA programme, surveys for pathogen isolates revealed a morphologically distinctive Metarhizium t'lavoviride Gams and Rozsypal attacking acridoids in West Africa, Madagascar, and elsewhere. Metarhizium anisopliae (Metschnikoff) Sorokin isolates with virulence to acridoids were also obtained, including several from non-orthopteran hosts. Natural epizootics ofboth genera are rare in acridoid populations, but do occur. A standardized screening method discriminated virulent from non-vitulent isolates. The great majority of the most virulent isolates were from the acridoid group of M . JIat,oviride. A Niger isolate chosen for development from this group had 1ow virulence to honey bees and parasitic Hymenoptera and was not infective to insects in several otler orders. Field tests were carried out on fo^rmulations of oil mixtures, using ULV application rates of l-2Llha and2-5 x l0'' conidia per hectare. In preliminary tests, target insects were sprayed successfully in small field arenas and in large cages. Trials

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Section: Availability Of Isolatesmentioning

confidence: 99%

DEVELOPMENT OF METARHIZIUM SPP. FOR THE CONTROL OF GRASSHOPPERS AND LOCUSTS

Lomer¹,

Prior²,

Kooyman³

1997

Mem. Entomol. Soc. Can.

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“…Les taux d'infection naturelle à E. grylli sont plus importants, comparés à ceux dus à Metarhizium flavoviride sur les acridiens dans la même zone d'étude estimés en moyenne entre 1,8 et 2,9% selon le site (Shah et al, 1994).…”

Section: Discussionunclassified

Facteurs affectant les épizooties de entomophaga grylli (zygomycètes, entomophthorales) chez les populations du criquet zonocerus variegatus au sud du bénin en afrique de l’ouest

Gnago¹,

Bi²,

Bekon³

2009

Sci & Nature

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“…Grasshoppers were fed with cassava stems, leave and twigs surface sterilized in 5 % sodium hypochlorite solution as described by Prior et al, (1995). Five cages containing 50 adults grasshoppers (sexually immature) per cage were used for the study as described by Shah et al (1994). They were kept in the cages for 2 weeks.…”

Section: Methodsmentioning

confidence: 99%

Entomopathogenic fungi in population of Zonocerus variegatus (l) in Ibadan, Southwest, Nigeria

Balogun¹,

Fagade²

2004

Afr. J. Biotechnol.

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Field survey of population of Zonocerus variegatus revealed a high fungal incidence of 76% when Sporulation tests were carried out on grasshoppers cadaver. Eight fungi with differing incidence rates were isolated. These are Fusarium sp. (8%); Beauveria bassiana (18%); Metarhizium sp. (20%); Aspergillus flavus (10%); Penicillium sp. (13%) Aspergillus niger (14%); Mucor sp. (13%) and unidentified fungus (4%). Fungal isolates virulence bioassay response showed that B. bassiana had the highest lethal time (LT 50) of 2 days. Metarhizium sp with LT 50 of 5 days was selected in lieu of A. niger which does not prove to be pathogenic to grasshoppers. The results were discussed in relation to the ecology of fungal pathogens of the variegated grasshopper and their possible role in control of Z. variegatus in the agroecosystem of south west, Nigeria.

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Natural levels of fungal infections in grasshoppers in Northern Benin

Cited by 20 publications

References 11 publications

DEVELOPMENT OF METARHIZIUM SPP. FOR THE CONTROL OF GRASSHOPPERS AND LOCUSTS

DEVELOPMENT OF METARHIZIUM SPP. FOR THE CONTROL OF GRASSHOPPERS AND LOCUSTS

Facteurs affectant les épizooties de entomophaga grylli (zygomycètes, entomophthorales) chez les populations du criquet zonocerus variegatus au sud du bénin en afrique de l’ouest

Entomopathogenic fungi in population of Zonocerus variegatus (l) in Ibadan, Southwest, Nigeria

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