Southwestern Entomologist (2020) 45, 965-970

Felipe Tafoya, Mark E. Whalon, Jaime A. Escoto-Moreno and Catarino Perales-Segovia (2020)
Effectiveness of two entomopathogen agents for Conotrachelus nenuphar larvae under laboratory conditions
Southwestern Entomologist 45 (4), 965-970
Abstract: The effect of two entomopathogenic agents, nematodes and fungi, was tested at three concentrations and three incubation temperatures in a laboratory against fourth-instar larvae of plum curculio, Conotrachelus nenuphar (Herbst). After inoculation by immersion, larvae were statistically more susceptible to Isaria fumosorosea fungus at an incubation temperature of 5°C and to Beauveria bassiana at 25°C. Fungal concentration had no effect on mortality. More larvae were killed by nematodes at warmer temperatures and higher concentrations of either species, Steneirnema feltiae or S. riobrave. Based on preliminary laboratory results, all entomopathogens suppressed plum curculio larvae, even at low concentrations, with 35% killed by fungi and 22% by nematodes. The results are promising for further studies on control of C. nenuphar by biological agents at field conditions.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Felipe Tafoya, Mark E. Whalon

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Conotrachelus nenuphar		Mexico
Beauveria bassiana (entomopathogen)	Conotrachelus nenuphar		Mexico
Cordyceps fumosorosea (entomopathogen)	Conotrachelus nenuphar		Mexico