Efficacy of five insecticides for the control of Trogoderma granarium Everts (Coleoptera: Dermestidae) larvae on concrete. (March 2016)
- Record Type:
- Journal Article
- Title:
- Efficacy of five insecticides for the control of Trogoderma granarium Everts (Coleoptera: Dermestidae) larvae on concrete. (March 2016)
- Main Title:
- Efficacy of five insecticides for the control of Trogoderma granarium Everts (Coleoptera: Dermestidae) larvae on concrete
- Authors:
- Kavallieratos, Nickolas G.
Athanassiou, Christos G.
Barda, Myrto S.
Boukouvala, Maria C. - Abstract:
- Abstract: Small and large larvae of the khapra beetle, Trogoderma granarium Everts were exposed for 1, 3, and 7 d on concrete that was treated with chlorfenapyr at 0.055 mg active ingredient (a.i.)/cm 2 and 0.11 mg (a.i.)/cm 2, deltamethrin at 0.0025 mg (a.i.)/cm 2 and 0.005 mg (a.i.)/cm 2, pirimiphos-methyl at 0.025 mg (a.i.)/cm 2 and 0.05 mg (a.i.)/cm 2, pyriproxyfen at 0.000115 mg (a.i.)/cm 2 and 0.00023 mg (a.i.)/cm 2, and spinosad at 0.05 mg (a.i.)/cm 2 and 0.1 mg (a.i.)/cm 2 . Then, the survived individuals were transferred on untreated concrete for 7 more days and the delayed mortality of small or large larvae was evaluated. Concerning the immediate mortality of small larvae, chlorfenapyr was the most effective among the insecticides tested causing 70% immediate mortality after 7 d of exposure at the higher dose. The other insecticides provided similar mortality levels with the exception of pyriproxyfen which was not effective, for any of the combinations tested, as mortality did not exceed 4.4%. Delayed mortality for chlorfenapyr was also high reaching 76% at 7 d of exposure at the higher dose. Pirimiphos-methyl and deltamethrin gave similar results, indicating that for these two insecticides there is also a noticeable delayed effect. For pyriproxifen and spinosad, the delayed mortality was low. Large larvae were by far more tolerant than small ones in all dose-insecticide-exposure combinations examined for both immediate and delayed mortality counts. The results ofAbstract: Small and large larvae of the khapra beetle, Trogoderma granarium Everts were exposed for 1, 3, and 7 d on concrete that was treated with chlorfenapyr at 0.055 mg active ingredient (a.i.)/cm 2 and 0.11 mg (a.i.)/cm 2, deltamethrin at 0.0025 mg (a.i.)/cm 2 and 0.005 mg (a.i.)/cm 2, pirimiphos-methyl at 0.025 mg (a.i.)/cm 2 and 0.05 mg (a.i.)/cm 2, pyriproxyfen at 0.000115 mg (a.i.)/cm 2 and 0.00023 mg (a.i.)/cm 2, and spinosad at 0.05 mg (a.i.)/cm 2 and 0.1 mg (a.i.)/cm 2 . Then, the survived individuals were transferred on untreated concrete for 7 more days and the delayed mortality of small or large larvae was evaluated. Concerning the immediate mortality of small larvae, chlorfenapyr was the most effective among the insecticides tested causing 70% immediate mortality after 7 d of exposure at the higher dose. The other insecticides provided similar mortality levels with the exception of pyriproxyfen which was not effective, for any of the combinations tested, as mortality did not exceed 4.4%. Delayed mortality for chlorfenapyr was also high reaching 76% at 7 d of exposure at the higher dose. Pirimiphos-methyl and deltamethrin gave similar results, indicating that for these two insecticides there is also a noticeable delayed effect. For pyriproxifen and spinosad, the delayed mortality was low. Large larvae were by far more tolerant than small ones in all dose-insecticide-exposure combinations examined for both immediate and delayed mortality counts. The results of the present study show that none of the insecticides were able to totally control T. granarium larvae, illustrating the difficulties in controlling this species, with dose rates that are usually effective for other major stored product beetle species. Highlights: Chlorfenapyr caused 70% immediate mortality of small larvae. Chlorfenapyr caused 76% delayed mortality of small larvae and 61.5% of large larvae. There was a noticeable delayed effect for pirimiphos-methyl and deltamethrin. Large larvae were by far more tolerant than small ones in all combinations examined. … (more)
- Is Part Of:
- Journal of stored products research. Volume 66(2016)
- Journal:
- Journal of stored products research
- Issue:
- Volume 66(2016)
- Issue Display:
- Volume 66, Issue 2016 (2016)
- Year:
- 2016
- Volume:
- 66
- Issue:
- 2016
- Issue Sort Value:
- 2016-0066-2016-0000
- Page Start:
- 18
- Page End:
- 24
- Publication Date:
- 2016-03
- Subjects:
- Trogoderma granarium -- Surface treatment -- Chlorfenapyr -- Deltamethrin -- Pirimiphos-methyl -- Pyriproxyfen -- Spinosad
Food -- Storage -- Periodicals
Farm produce -- Storage -- Diseases and injuries -- Periodicals
Entomology -- Periodicals
Food Contamination -- Periodicals
Food Preservation -- Periodicals
Insect Control -- Periodicals
Aliments -- Entreposage -- Périodiques
Produits agricoles -- Entreposage -- Maladies et dommages -- Périodiques
Electronic journals
631.568 - Journal URLs:
- http://www.sciencedirect.com/science/journal/0022474X ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.jspr.2015.12.001 ↗
- Languages:
- English
- ISSNs:
- 0022-474X
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5066.871000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 65.xml