Insects (2020) 11 (2 - 87)

Héctor Manuel Luna-Espino, Alfredo Jiménez-Pérez and Víctor Rogelio Castrejón-Gómez (2020)
Assessment of Chrysoperla comanche (Banks) and Chrysoperla externa (Hagen) as biological control agents of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) on tomato (Solanum lycopersicum) under glasshouse conditions
Insects 11 (2 - 87)
Abstract: We tested the predatory capacity of newly-hatched or newly-molted Chrysoperla comanche (Banks) and Chrysoperla externa (Hagen) larvae after a 24 h fasting period on adults of Frankliniella occidentalis (Pergande) that were feeding on tomato plants (at vegetative and blooming stage) under glasshouse conditions. We also recorded fruit damage by the thrips. Both Chysoperla spp. depredated a similar number of F. occidentalis (thrips) adults regardless of the phenological stage of the plant. Second and third instar larvae of both species consumed significantly more thrips than first instar during plant blooming, however when the plant was at vegetative stage, all larval stages of both species predated a similar number of thrips. A significantly lower fruit damage percentage was recorded at the blooming plant when C. comanche larvae were in the experimental cage, however the presence of second and third instar of both species significantly reduced the fruit damage. No foliar damage was recorded. As far as we know, this is the first assessment of the predatory capacity of C. comanche and C. externa on thrips feeding on tomato under glasshouse conditions.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Alfredo Jimenez-Perez, Victor R. Castrejon-Gomez

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

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Frankliniella occidentalis	Tomato (Solanum lycopersicum)	Mexico
Chrysoperla comanche (predator)	Frankliniella occidentalis
Chrysoperla externa (predator)	Frankliniella occidentalis	Tomato (Solanum lycopersicum)	Mexico