1 / 19

Biological Control of the Annual Bluegrass Weevil in New Jersey

Biological Control of the Annual Bluegrass Weevil in New Jersey. B. A. McGraw and A. Koppenh ö fer. Listronotus maculicollis. Single most destructive insect pest on golf course turfgrass in the NE, U.S. Primarily feeds on annual bluegrass, a prevalent grass weed on golf courses

grazia
Download Presentation

Biological Control of the Annual Bluegrass Weevil in New Jersey

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Biological Control of the Annual Bluegrass Weevil in New Jersey B. A. McGraw and A. Koppenhöfer

  2. Listronotus maculicollis • Single most destructive insect pest on golf course turfgrass in the NE, U.S. • Primarily feeds on annual bluegrass, a prevalent grass weed on golf courses • Managed preventatively with pyrethroids

  3. ABW Development Vittum et al. 1999 Cameron and Johnson, 1971

  4. Annual BluegrassPoa annua • Highly invasive grass weed found cool-temperate regions • Performs well under close mowing • Performs poorly in heat/drought stress

  5. ABW Damage

  6. New Jersey Surveyfor Infected ABW

  7. Infection of ABW by endemic EPNs Early-stage infections in ABW larva and late stage infection in pupa. Late-stage infection by endemic nematodes in ABW larva.

  8. Entomopathogenic nematode life cycle

  9. Survey for natural pathogens of ABW in NJ EPN in Soil: 34% H. bacteriophora, 66% S. carpocapsae ABW infections: 98% H. bacteriophora, 2% S. carpocapsae

  10. Seasonal Dynamics

  11. Seasonal dynamics of ABW and infections by endemic EPN in GC fairways Pine Brook GC, Manalapan, NJ

  12. Future Research • Conduct laboratory assays against various lifestages of ABW, EPNs and environmental variables • Conduct field trials with promising EPNs • Monitor the impact of ABW on P. annua and overseeding on the turfgrass species

  13. Acknowledgements: • Technical support: E. Fuzy, M. Resnick and Z. Eagan • Funding: GCSAA, USGA and Rutgers Center for Turfgrass Science

More Related