In Vivo Study on Combined Toxicity of &lt;I&gt;Metarhizium anisopliae&lt;/I&gt; (Deuteromycotina: Hyphomycetes) Strain ESC-1 with Sublethal Doses of Chlorpyrifos, Propetamphos, and Cyfluthrin Against German Cockroach (Dictyoptera: Blattellidae)

Pachamuthu, Pari; Kamble, Shripat T.

doi:10.1603/0022-0493-93.1.60

Cited by 47 publications

(44 citation statements)

References 37 publications

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“…Researchers have combined pyrethroids, organophosphates, carbamates, or nicotinoids with M. anisopliae isolates, finding synergistic (Kaakeh et al 1997;Quintela and McCoy 1997), antagonistic (Mohamed et al 1987), additive (Mohamed et al 1987;Kaaya et al 1996;Kaaya and Hassan 2000), and mixed (Li and Holdom 1994;Pachamuthu and Kamble 2000) interactions in bioassays and in growth, sporulation, and conidial germination experiments. M. anisopliae and chemical acaricide combinations have not previously been tested against I. scapularis.…”

Section: Introductionmentioning

confidence: 99%

Pathogenicity of Metarhizium anisopliae (Deuteromycetes) and permethrin to Ixodes scapularis (Acari: Ixodidae) nymphs

et al. 2005

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Effectiveness of the entomopathogenic fungus Metarhizium anisopliae, for controlling nymphal Ixodes scapularis, was tested in laboratory and field trials. In the laboratory, M. anisopliae (Metschnikoff) Sorokin strain ESC1 was moderately pathogenic, with an LC50 of 10(7) spores/ml and induced 70% mortality at 10(9) spores/ml. In a field study, however, 10(9) spores/ml M. anisopliae did not effectively control questing I. scapularis nymphs, and significant differences were not detected in pre- and post-treatment densities. For nymphs collected and returned to the laboratory for observation, mortality was low in treatment groups, ranging from 20 to 36%. To assess whether a chemical acaricide would synergistically enhance pathogenicity of the fungus, we challenged unfed nymphal I. scapularis with combinations of M. anisopliae and permethrin, a relatively safe pyrethroid acaricide, in two separate bioassays. Significant interactions between M. anisopliae and permethrin were not observed, supporting neither synergism nor antagonism.

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Section: Introductionmentioning

confidence: 99%

Pathogenicity of Metarhizium anisopliae (Deuteromycetes) and permethrin to Ixodes scapularis (Acari: Ixodidae) nymphs

et al. 2005

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“…Studies on insect hosts other than mosquitoes have indicated that fungal infection can act synergistically with insecticides, increasing the impact of otherwise sublethal insecticide doses (24)(25)(26). Mixtures of M. anisopliae and deltamethrin were shown to enhance virulence of both components when tested against ticks, indicating synergistic effects that would enhance the effectiveness of low fungi and insecticide concentrations (27).…”

mentioning

confidence: 99%

Fungal infection counters insecticide resistance in African malaria mosquitoes

Farenhorst

Mouatcho

Kikankie

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

136

137

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The evolution of insecticide resistance in mosquitoes is threatening the effectiveness and sustainability of malaria control programs in various parts of the world. Through their unique mode of action, entomopathogenic fungi provide promising alternatives to chemical control. However, potential interactions between fungal infection and insecticide resistance, such as cross-resistance, have not been investigated. We show that insecticide-resistant Anopheles mosquitoes remain susceptible to infection with the fungus Beauveria bassiana. Four different mosquito strains with high resistance levels against pyrethroids, organochlorines, or carbamates were equally susceptible to B. bassiana infection as their baseline counterparts, showing significantly reduced mosquito survival. Moreover, fungal infection reduced the expression of resistance to the key public health insecticides permethrin and dichlorodiphenyltrichloroethane. Mosquitoes preinfected with B. bassiana or Metarhizium anisopliae showed a significant increase in mortality after insecticide exposure compared with uninfected control mosquitoes. Our results show a high potential utility of fungal biopesticides for complementing existing vector control measures and provide products for use in resistance management strategies.biopesticide ͉ DDT ͉ pyrethoids ͉ resistance management ͉ vector control

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“…Most recently, the compatibility (increased mortality and lower LT 50 ) of M. anisopliae was demonstrated with imidacloprid (Kaakeh et al, 1997), chlorpyrifos, prometamphos, and cyfluthrin (Pachamutu et al, 1999;Pachamutu and Kamble, 2000) against the German cockroach. Boric acid also enhanced the virulence of Bacillus thuringiensis (Berliner) subsp.…”

Section: Discussionmentioning

confidence: 99%

“…For these reasons, sales of a commercial formulation of M. anisopliae for cockroaches, Bio-Path by EcoScience Corp. (Worcester, MA), were discontinued (Pachamutu et al, 1999). Recently, several studies reported increased virulence of M. anisopliae against B. germanica in combination with the organic insecticides imidacloprid, chlorpyrifos, propetamphos, and cyfluthrin (Kaakeh et al, 1997;Pachamutu et al, 1999;Pachamutu and Kamble, 2000).…”

Section: Introductionmentioning

confidence: 99%

Synergism between Metarhizium anisopliae (Deuteromycota: Hyphomycetes) and Boric Acid against the German Cockroach (Dictyoptera: Blattellidae)

2002

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In Vivo Study on Combined Toxicity of <I>Metarhizium anisopliae</I> (Deuteromycotina: Hyphomycetes) Strain ESC-1 with Sublethal Doses of Chlorpyrifos, Propetamphos, and Cyfluthrin Against German Cockroach (Dictyoptera: Blattellidae)

Cited by 47 publications

References 37 publications

Pathogenicity of Metarhizium anisopliae (Deuteromycetes) and permethrin to Ixodes scapularis (Acari: Ixodidae) nymphs

Pathogenicity of Metarhizium anisopliae (Deuteromycetes) and permethrin to Ixodes scapularis (Acari: Ixodidae) nymphs

Fungal infection counters insecticide resistance in African malaria mosquitoes

Synergism between Metarhizium anisopliae (Deuteromycota: Hyphomycetes) and Boric Acid against the German Cockroach (Dictyoptera: Blattellidae)

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