The Canadian Entomologist (2015) 147, 222-226

P.K. Abram, J. Doyon, J. Brodeur, T.D. Gariépy and G. Boivin (2015)
Susceptibility of Halyomorpha halys (Hemiptera: Pentatomidae) eggs to different life stages of three generalist predators
The Canadian Entomologist 147 (2), 222-226
Abstract: The invasive stink bug Halyomorpha halys Stål (Hemiptera: Pentatomidae) has recently become established in Canada, but little information is available regarding the ability of natural enemies to attack this pest in its invaded range. We tested the capacity of several life stages of three generalist predators, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae), Coleomegilla maculata De Geer (Coleoptera: Coccinellidae), and Podisus maculiventris (Say) (Hemiptera: Pentatomidae), to attack H. halys eggs. The relative susceptibility of H. halys eggs to predator attack was compared to P. maculiventris eggs. We found evidence for differential ability to consume H. halys and P. maculiventris eggs both among predator species and within species among life stages. The most H. halys eggs were consumed by late-instar C. carnea, while fewest were consumed by second-instar and adult C. maculata, and second-instar C. carnea. The susceptibility of H. halys eggs to predators was similar to that of P. maculiventris eggs, with only early-instar P. maculiventris nymphs consuming significantly less H. halys eggs than P. maculiventris eggs. Our results provide a baseline for further testing of generalist predators against H. halys and illustrate the potential importance of considering the breadth of ontogeny across which candidates are able to attack the invasive pest.
(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): Paul K. Abram, Tara Dawne Gariepy, Guy Boivin, Josée Doyon

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Halyomorpha halys
Chrysoperla carnea (predator)	Halyomorpha halys
Coleomegilla maculata (predator)
Podisus maculiventris (predator)	Halyomorpha halys