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Reduced viability of Colorado potato beetle, Leptinotarsa decemlineata, eggs exposed to novaluron.
Pest Manag Sci. 2008 Jan; 64(1):94-9.PM

Abstract

BACKGROUND

Novaluron is a benzoylphenyl urea chitin synthesis inhibitor that combines good activity against larval stages of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), with low mammalian toxicity. Previous studies suggest that it has deleterious sublethal effects on adults.

RESULTS

Continuous exposure of adult Colorado potato beetles to novaluron-treated foliage as both ovipositional and feeding substrate did not affect their survivorship or the number of eggs produced, but viable larvae hatched only from the eggs that were laid on the first day of the experiment. Viability was restored after adult beetles spent 48-96 hours on untreated leaves. In a separate experiment, direct exposure to novaluron of eggs laid by unexposed beetles also reduced the number of larvae hatching.

CONCLUSIONS

Results confirm a negative effect of novaluron on the number of progeny produced by the Colorado potato beetle. Direct toxicity did not explain all of the reduction in egg hatch observed, suggesting that novaluron probably acted on reproductive adults as well as on eggs after they were deposited.

Authors+Show Affiliations

Alyokhin A
Department of Biological Sciences, University of Maine, 5722 Deering Hall, Orono, ME 04469-5722, USA. andrei.alyokhin@umit.maine.edu
Sewell G
No affiliation info available
Choban R
No affiliation info available

MeSH

AnimalsColeopteraFeeding BehaviorInsecticidesLarvaOvumPhenylurea CompoundsPlant LeavesSolanum tuberosum

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17890656

Citation

Alyokhin, Andrei, et al. "Reduced Viability of Colorado Potato Beetle, Leptinotarsa Decemlineata, Eggs Exposed to Novaluron." Pest Management Science, vol. 64, no. 1, 2008, pp. 94-9.
Alyokhin A, Sewell G, Choban R. Reduced viability of Colorado potato beetle, Leptinotarsa decemlineata, eggs exposed to novaluron. Pest Manag Sci. 2008;64(1):94-9.
Alyokhin, A., Sewell, G., & Choban, R. (2008). Reduced viability of Colorado potato beetle, Leptinotarsa decemlineata, eggs exposed to novaluron. Pest Management Science, 64(1), 94-9.
Alyokhin A, Sewell G, Choban R. Reduced Viability of Colorado Potato Beetle, Leptinotarsa Decemlineata, Eggs Exposed to Novaluron. Pest Manag Sci. 2008;64(1):94-9. PubMed PMID: 17890656.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reduced viability of Colorado potato beetle, Leptinotarsa decemlineata, eggs exposed to novaluron. AU - Alyokhin,Andrei, AU - Sewell,Gary, AU - Choban,Raymond, PY - 2007/9/25/pubmed PY - 2008/3/20/medline PY - 2007/9/25/entrez SP - 94 EP - 9 JF - Pest management science JO - Pest Manag Sci VL - 64 IS - 1 N2 - BACKGROUND: Novaluron is a benzoylphenyl urea chitin synthesis inhibitor that combines good activity against larval stages of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), with low mammalian toxicity. Previous studies suggest that it has deleterious sublethal effects on adults. RESULTS: Continuous exposure of adult Colorado potato beetles to novaluron-treated foliage as both ovipositional and feeding substrate did not affect their survivorship or the number of eggs produced, but viable larvae hatched only from the eggs that were laid on the first day of the experiment. Viability was restored after adult beetles spent 48-96 hours on untreated leaves. In a separate experiment, direct exposure to novaluron of eggs laid by unexposed beetles also reduced the number of larvae hatching. CONCLUSIONS: Results confirm a negative effect of novaluron on the number of progeny produced by the Colorado potato beetle. Direct toxicity did not explain all of the reduction in egg hatch observed, suggesting that novaluron probably acted on reproductive adults as well as on eggs after they were deposited. SN - 1526-498X UR - https://www.unboundmedicine.com/medline/citation/17890656/Reduced_viability_of_Colorado_potato_beetle_Leptinotarsa_decemlineata_eggs_exposed_to_novaluron_ L2 - https://doi.org/10.1002/ps.1459 DB - PRIME DP - Unbound Medicine ER -