Organic Agriculture

, Volume 6, Issue 3, pp 203–213 | Cite as

Organic management of apple flea weevil, a reemergent pest of commercial apples

  • John M. Pote
  • Anne L. Nielsen
  • Larry Gut
  • Matthew J. Grieshop
Article

Abstract

Rhynchaenus pallicornis (Say) (Coleoptera: Curculionidae) is an economically significant pest of organically produced apples in Michigan. Although R. pallicornis has not been considered a pest of domesticated apples for over 50 years, it has recently reemerged with some organic producers experiencing >90 % yield loss as a result. We evaluated the effect of conventional and US Department of Agriculture: National Organic Program (NOP)-approved insecticides on adult R. pallicornis in the lab. Spinosad was the most effective organic compound tested (95.8 % mortality after 48 h). We then evaluated various application timings and rates of spinosad at commercial orchards. Applications of spinosad timed with the tight cluster stage of apple bud phenology caused the highest mortality of caged adults and significantly reduced the proportion of leaves with larval mines compared to an untreated control. Spinosad application significantly decreased the rate of parasitoid emergence from R. pallicornis larval leaf mines at one research site. The recommended application rate for spinosad in pome fruits is 219 ml/ha. We tested the efficacy of spinosad applied at 219 and 110 ml/ha for control of the summer generation of R. pallicornis. Half-rate applications (110 ml/ha) caused mortality similar to that of full-rate applications (219 ml/ha). Reduced application rates and informed application timings of spinosad may provide effective control of R. pallicornis while mitigating negative impacts on natural enemies.

Keywords

Rhynchaenus pallicornis Organic Spinosad Apple Control 

References

  1. Abbott W (1925) A method of computing the effectiveness of an insecticide. J Econ Entomol 18:265–267CrossRefGoogle Scholar
  2. Arthurs SP, Lacey LA, Miliczky ER (2007) Evaluation of the codling moth granulovirus and spinosad for codling moth control and impact on non-target species in pear orchards. Biol Control 41:99–109Google Scholar
  3. Cisneros J, Goulson D, Derwent LC, Penagos DI, Hernández O, Williams T (2002) Toxic effects of spinosad on predatory insects. Biol Control 23:156–163CrossRefGoogle Scholar
  4. Crowder DW, Northfield TD, Strand MR, Snyder WE (2010) Organic agriculture promotes evenness and natural pest control. Nature 466:109–112CrossRefPubMedGoogle Scholar
  5. Cutright C (1950) New insecticides for summer control of apple flea weevil. J Econ Entomol 43Google Scholar
  6. Flint WP, SC Chandler, Glenn PA (1924) The apple flea-weevil, Orchestes pallicornis Say (Order Coleoptera; Family Curculionidae). Ill Nat Hist Bull XVGoogle Scholar
  7. Houser J (1923) The apple flea weevil Orchestes pallioornis Say. Ohio Agric Exp Sta Bull 372:395–454Google Scholar
  8. Lu Y, Wu K, Jiang Y, Xia B, Li P, Feng H, Wyckhuys KA, Guo Y (2010) Mirid bug outbreaks in multiple crops correlated with wide-scale adoption of bt cotton in china. Science 328:1151–1154CrossRefPubMedGoogle Scholar
  9. Mason P, Erlandson M, Elliott R, Harris B (2002) Potential impact of spinosad on parasitoids of Mamestra configurata (Lepidoptera: Noctuidae). Can Entomol 134:59–68CrossRefGoogle Scholar
  10. Mayes, MA, G.D. Thompson, B. Husband, and M.M. Miles. 2003. Spinosad Toxicity to Pollinators and Associated Risk. p. 37–71. In Reviews of Environmental Contamination and Toxicology. Reviews of Environmental Contamination and Toxicology. Springer New York.Google Scholar
  11. Mundinger FG (1951) The apple flea weevil. J Econ Entomol 44:28–33CrossRefGoogle Scholar
  12. Nielsen AL, Pote J, Buehrer K, Grieshop MJ (2012) The reemergence of an old pest, Orchestes pallicornis (Coleoptera: Curculionidae). J Integr PestManag 3:D1–D4CrossRefGoogle Scholar
  13. Pote J (2014) Biology of the reemergent pest apple flea weevil (Orchestes pallicornis, Say) and methods for its organic control. Masters Thesis, Michigan State UniversityGoogle Scholar
  14. Zehnder G, Gurr GM, Kühne S, Wade MR, Wratten SD, Wyss E (2007) Arthropod pest management in organic crops. Annu Rev Entomol 52:57–80CrossRefPubMedGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • John M. Pote
    • 1
  • Anne L. Nielsen
    • 1
  • Larry Gut
    • 2
  • Matthew J. Grieshop
    • 2
  1. 1.Department of Entomology, Rutgers Agriculture Research and Extension CenterRutgers UniversityBridgetonUSA
  2. 2.Department of Entomology, Center for Integrated Plant SystemsMichigan State UniversityEast LansingUSA

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