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Can Isogroup Selection of Highly Zoophagous Lines of a Zoophytophagous Bug Improve Biocontrol of Spider Mites in Apple Orchards?
Insects 2019; 10(9)I

Abstract

Zoophytophagous predators provide benefits in agroecosystems when feeding on pests, but they can also cause crop damage. Optimizing the use of zoophytophagous predators as biocontrol agents would require improving pest control and/or limiting damage. Populations of a zoophytophagous species can be composed of a mix of individuals diverging in their level of diet specialization. Consequently, depending on their level of zoophagy, individuals would vary widely in the benefits and risks they provide to pest management. We tested the hypothesis that manipulating the composition of the population of a zoophytophagous insect, the mullein bug, Campylomma verbasci (Hemiptera: Miridae), towards an increased zoophagy would increase their net benefit in an apple orchard. We compared the inherent benefits and risks of two different isogroup lines of mullein bug that genetically differed in their level of zoophagy. In spring, when damage occurs, both strains infrequently punctured apple fruit, which rarely lead to damage and therefore represented a low risk. During summer, only the highly-zoophagous line impacted the spider mite population, while the lowly-zoophagous line did not differ from the control treatments. We concluded that manipulating the composition of the zoophytophagous predator population provided extra net benefits that improved pest control.

Authors+Show Affiliations

Département des Sciences Biologiques, Université du Québec à Montréal, CP 8888, Succ. Centre Ville, Montréal, QC H3C 3P8, Canada. dumont.francois.3@courrier.uqam.ca.Département des Sciences Biologiques, Université du Québec à Montréal, CP 8888, Succ. Centre Ville, Montréal, QC H3C 3P8, Canada. reale.denis@uqam.ca.Département des Sciences Biologiques, Université du Québec à Montréal, CP 8888, Succ. Centre Ville, Montréal, QC H3C 3P8, Canada. lucas.eric@uqam.ca.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31540397

Citation

Dumont, François, et al. "Can Isogroup Selection of Highly Zoophagous Lines of a Zoophytophagous Bug Improve Biocontrol of Spider Mites in Apple Orchards?" Insects, vol. 10, no. 9, 2019.
Dumont F, Réale D, Lucas É. Can Isogroup Selection of Highly Zoophagous Lines of a Zoophytophagous Bug Improve Biocontrol of Spider Mites in Apple Orchards? Insects. 2019;10(9).
Dumont, F., Réale, D., & Lucas, É. (2019). Can Isogroup Selection of Highly Zoophagous Lines of a Zoophytophagous Bug Improve Biocontrol of Spider Mites in Apple Orchards? Insects, 10(9), doi:10.3390/insects10090303.
Dumont F, Réale D, Lucas É. Can Isogroup Selection of Highly Zoophagous Lines of a Zoophytophagous Bug Improve Biocontrol of Spider Mites in Apple Orchards. Insects. 2019 Sep 18;10(9) PubMed PMID: 31540397.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Can Isogroup Selection of Highly Zoophagous Lines of a Zoophytophagous Bug Improve Biocontrol of Spider Mites in Apple Orchards? AU - Dumont,François, AU - Réale,Denis, AU - Lucas,Éric, Y1 - 2019/09/18/ PY - 2019/07/19/received PY - 2019/09/08/revised PY - 2019/09/09/accepted PY - 2019/9/22/entrez KW - artificial selection KW - biological control KW - diet specialization KW - isogroup lines KW - mullein bug KW - strain selection KW - zoophytophagous predators JF - Insects JO - Insects VL - 10 IS - 9 N2 - Zoophytophagous predators provide benefits in agroecosystems when feeding on pests, but they can also cause crop damage. Optimizing the use of zoophytophagous predators as biocontrol agents would require improving pest control and/or limiting damage. Populations of a zoophytophagous species can be composed of a mix of individuals diverging in their level of diet specialization. Consequently, depending on their level of zoophagy, individuals would vary widely in the benefits and risks they provide to pest management. We tested the hypothesis that manipulating the composition of the population of a zoophytophagous insect, the mullein bug, Campylomma verbasci (Hemiptera: Miridae), towards an increased zoophagy would increase their net benefit in an apple orchard. We compared the inherent benefits and risks of two different isogroup lines of mullein bug that genetically differed in their level of zoophagy. In spring, when damage occurs, both strains infrequently punctured apple fruit, which rarely lead to damage and therefore represented a low risk. During summer, only the highly-zoophagous line impacted the spider mite population, while the lowly-zoophagous line did not differ from the control treatments. We concluded that manipulating the composition of the zoophytophagous predator population provided extra net benefits that improved pest control. SN - 2075-4450 UR - https://www.unboundmedicine.com/medline/citation/31540397/Can_Isogroup_Selection_of_Highly_Zoophagous_Lines_of_a_Zoophytophagous_Bug_Improve_Biocontrol_of_Spider_Mites_in_Apple_Orchards DB - PRIME DP - Unbound Medicine ER -
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