Pathogenicity and attractiveness of entomopathogenic hyphomycete fungi to collembolans

Dromph, Karsten M.; Vestergaard, Susanne

doi:10.1016/s0929-1393(02)00092-6

Cited by 42 publications

(24 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Collembola have been proposed as biocontrol agents of plant pathogenic fungi (Curl 1988;Lartey et al 1994). These insects seem to be somewhat refractory to infection by at least several isolates of fungal entomopathogens, and conidia were attractive to three species of Collembola (Dromph and Vestergaard 2002). Collembolan grazing can suppress Rhizoctonia solani Kühn and R. cerealis Hoeven, both in laboratory and field situations (Shiraishi et al 2003cited in Friberg et al 2005.…”

Section: Biotic Factorsmentioning

confidence: 99%

Ecological factors in the inundative use of fungal entomopathogens

2009

View full text Add to dashboard Cite

Fungal entomopathogens have been developed in numerous countries as biocontrol agents with more than 100 mycoinsecticide products commercially available in 2006. The chief, perhaps sole, use of these mycoinsecticides has been as inundative agents, within a chemical paradigm. Large numbers of propagules are applied in an attempt to overwhelm by brute force many of the factors that keep a pathogen in nonepizootic equilibrium with its host. This review attempts to summarize what we know about the abiotic and biotic factors that affect the efficacy of these mycoinsecticides in both foliar and soil applications. Sunlight, humidity, temperature, and phylloplane-associated factors can affect both immediate efficacy and persistence on plants. Likewise, soil texture-moisture interactions, temperature, and a host of biotic factors can affect mycoinsecticides in the soil. Despite much research, our understanding of these ecological aspects is imperfect, especially in a holistic, dynamic sense.

show abstract

Section: Biotic Factorsmentioning

confidence: 99%

Ecological factors in the inundative use of fungal entomopathogens

2009

View full text Add to dashboard Cite

show abstract

“…Collembola are reported to feed on EPF and partake in their dispersal (Broza, Pereira, and Stimac 2001;Dromph 2001). Dromph and Vestergaard (2002) showed that three common collembolans, Folsomia fimetaria, Hypogastrura assimilis and Proisotoma minuta, were attracted to conidia of M. anisopliae, B. bassiana and B. brongniartii. These workers found that the order of attractiveness was similar for the three collembolan species with B. brongniartii being the most preferred and B. bassiana as the least.…”

Section: Protozoamentioning

confidence: 99%

Natural and released inoculum levels of entomopathogenic fungal biocontrol agents in soil in relation to risk assessment and in accordance with EU regulations

Scheepmaker

Butt

2010

Biocontrol Science and Technology

115

View full text Add to dashboard Cite

Entomopathogenic fungi being developed as biological control agents (BCAs) may have the potential to spread and become established in the environment. For registration purposes, the risks concerning their persistence have to be evaluated according to EU legislation which requires the decline of BCAs to acceptable background levels unless related risks are acceptable. In order to deal with this requirement, applicants of a BCA need to give information on its persistence and natural background levels. For risk assessors and registration authorities guidance on how to evaluate data on natural background levels of indigenously occurring species (0same species as the introduced BCA) is needed. For this purpose, an overview is presented on background levels of some indigenous fungi as well as persistence data of some applied fungal BCAs. Data were restricted to commerical species. It was found that for the species Metarhizium anisopliae, Beauveria bassiana and Beauveria brongniartii natural densities were relatively low and introduced strains of these fungi decreased gradually in time. Many factors were found in the literature, such as intrinsic, edaphic, biotic, climatic, and cultural factors, that could explain this decline.

show abstract

“…Dromph and Vestergaard (2002) assessed the susceptibility of three species of collembolans (Folsomia fimet aria (L.), Hypogastrura assimilis (Krausbauer) and Proisotoma minuta (Tullberg)) to three species of entomopathogenic fungi, B. bassiana, Beauveria brongniartii (Saccardo) Petch (Ascomycota: Hypocreales) and M. anisopliae. Folsomia fimet aria was shown to be susceptible to both B. brongniartii and M. anisopliae when fed them on inoculated sphagnum, however, it was attracted to these fungal pathogens in a choice arena.…”

Section: Entomopathogenic Fungi and Insect Behaviour 91mentioning

confidence: 99%

Entomopathogenic fungi and insect behaviour: from unsuspecting hosts to targeted vectors

2009

View full text Add to dashboard Cite

The behavioural response of an insect to a fungal pathogen will have a direct effect on the efficacy of the fungus as a biological control agent. In this paper we describe two processes that have a significant effect on the interactions between insects and entomopathogenic fungi: (a) the ability of target insects to detect and avoid fungal pathogens and (b) the transmission of fungal pathogens between host insects. The behavioural interactions between insects and entomopathogenic fungi are described for a variety of fungal pathogens ranging from commercially available bio-pesticides to non-formulated naturally occurring pathogens. The artificial manipulation of insect behaviour using dissemination devices to contaminate insects with entomopathogenic fungi is then described. The implications of insect behaviour on the use of fungal pathogens as biological control agents are discussed.

show abstract

Pathogenicity and attractiveness of entomopathogenic hyphomycete fungi to collembolans

Cited by 42 publications

References 30 publications

Ecological factors in the inundative use of fungal entomopathogens

Ecological factors in the inundative use of fungal entomopathogens

Natural and released inoculum levels of entomopathogenic fungal biocontrol agents in soil in relation to risk assessment and in accordance with EU regulations

Entomopathogenic fungi and insect behaviour: from unsuspecting hosts to targeted vectors

Contact Info

Product

Resources

About