Bioassay of
Metarhizium anisopliae
,
Beauveria bassiana
, and
Neoaplectana carpocapsae
Against Larvae of the Plum Curculio,
Conotrachelus nenuphar
(Herbst) (Coleoptera: Curculionidae)
1

Tedders, W. L.; Weaver, D. J.; Wehunt, E. J.; Gentry, C. R.

doi:10.1093/ee/11.4.901

Cited by 16 publications

(9 citation statements)

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“…The fungal pathogens Beauveria bassiana and Metarhlzium anisopliae (Metschnikoff) Sorokin caused high levels of mortality in larvae confined in pétri dishes and in cups containing soil. Under the same conditions, the nematode Steinernema carpocapsae {=Neoplectana carpocapsae) Weiser was ineffective (Tedders et al 1982). Many adult plum curculios infected with Bacillus thuringiensis Berliner var.…”

Section: Biological Controlmentioning

confidence: 99%

Ecology and management of plum curculio, Conotrachelus nenuphar [Coleoptera :Curculionidae], in apple orchards

Racette¹,

Chouinard²,

Vincent³

et al. 2005

phyto

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Plum curculio (Conotrachelus nenuphar) is a native pest of pome and stone fruit in eastern North America. It is a key pest of apple (Malus pumila) orchards in Quebec. In spring, adults disperse primarily from woodland overwintering sites to apple orchards. Before fruit set, the beetles are mainly nocturnal. As fruits become available for oviposition, adults extend their activity to the daytime. Full grown larvae found in dropped apples in June (June drop) enter the soil to pupate. The summer brood emerges in August, feeds on the remaining fruit throughout the fall and then disperses to suitable overwintering sites. Little is known of its community and host plant relationships, dispersal behavior, factors influencing its mode of locomotion, choice of food sources, overwintering sites, micro-habitat selection, orientation, and action threshold. Commercially available biocontrol agents are not effective, and convenient and reliable monitoring techniques for the timing of sprays have not been developed. However, recent field and insectary studies on the behavior and activity of plum curculio adults may allow us to improve the efficiency of control strategies. These findings are presented here, together with their implications for control of the plum curculio by modifying its habitat, and by better timing and location of sprays and other interventions. This paper also includes brief reviews of biological controls, insect growth regulators, and genetic controls for plum curculio.

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Section: Biological Controlmentioning

confidence: 99%

Ecology and management of plum curculio, Conotrachelus nenuphar [Coleoptera :Curculionidae], in apple orchards

Racette¹,

Chouinard²,

Vincent³

et al. 2005

phyto

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“…In a laboratory bioassay, a South Carolina strain of the entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin caused delayed mortality of lastinstar plum curculio compared with a South Carolina strain of the fungus Metarhizium anisopliae (Metschnikoff) Sorokin (Tedders et al 1982). A California strain of M. anisopliae was not effective in this same study.…”

mentioning

confidence: 66%

“…Olthof and Hagley (1993) reported 73Ð90% mortality for S. feltiae Biosys27 strain and S. carpocapsae All strain against last-instar plum curculio; however, other authors found low efÞcacy of both the S. carpocapsae All strain and a Mississippi-collected S. carpocapsae strain (Tedders et al 1982, Shapiro-Ilan et al 2002. S. riobrave 355 strain reduced adult emergence by 77Ð 97% when applied to soil in Þeld cages containing plum curculio larvae in Georgia (Shapiro-Ilan et al 2004).…”

mentioning

confidence: 99%

Field Efficacy of Entomopathogenic Fungi and Nematodes Targeting Caged Last-Instar Plum Curculio (Coleoptera: Curculionidae) in Michigan Cherry and Apple Orchards

2009

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The plum curculio (Conotrachelus nenuphar Herbst) is a key pest of pome and stone fruit in eastern North America. We tested the efficacy of five pathogens over the course of three seasons in 10 Michigan apple and cherry orchards, with introductions of larvae to caged pots containing pathogen-treated soil. The nematode Steinernema riobrave was the most effective pathogen in the 2 yr it was tested, but only in soils with the highest sand content (81-88%) and when it was applied 1 h or 5 d after last instars of plum curculio. S. carpocapsae in an organic formulation was less effective, but significantly reduced plum curculio emergence in 1 yr of the study when applied 3 d before C. nenuphar larvae were introduced. Beauveria bassiana was effective in only 1 of the 3 yr it was tested, only in soils with lower sand content, and only when it was introduced within 1 h of plum curculio larvae. Metarhizium anisopliae and Heterorhabditis bacteriophora were ineffective. Michigan orchards may require sprinkler irrigation coupled with precise timing recommendations and oviposition monitoring to enhance entomopathogen application efficacy against soil-dwelling last instars.

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“…In a laboratory bioassay with Steinernema carpocapsae (unknown strain), Tedders et al (1982) found 34.1% mortality after 14 days, the mortality in the control being 24.4%. In a laboratory bioassay with Steinernema carpocapsae (unknown strain), Tedders et al (1982) found 34.1% mortality after 14 days, the mortality in the control being 24.4%.…”

Section: Resultsmentioning

confidence: 99%

Biocontrol of the apple sawfly,Hoplocampa testudinea, with entomogenous nematodes

Vincent¹,

Bélair²

1992

Entomophaga

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Bioassay of Metarhizium anisopliae , Beauveria bassiana , and Neoaplectana carpocapsae Against Larvae of the Plum Curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae) 1

Cited by 16 publications

References 0 publications

Ecology and management of plum curculio, Conotrachelus nenuphar [Coleoptera :Curculionidae], in apple orchards

Ecology and management of plum curculio, Conotrachelus nenuphar [Coleoptera :Curculionidae], in apple orchards

Field Efficacy of Entomopathogenic Fungi and Nematodes Targeting Caged Last-Instar Plum Curculio (Coleoptera: Curculionidae) in Michigan Cherry and Apple Orchards

Biocontrol of the apple sawfly,Hoplocampa testudinea, with entomogenous nematodes

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