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Title: Use of Physical Barriers to Prevent Borer Infestation of Apple Burrknots Project Leaders
 

Summary: Title: Use of Physical Barriers to Prevent Borer Infestation of Apple Burrknots
Project Leaders:
David Kain, Dept. of Entomology, NYSAES, Geneva, NY 14456. Tel: 315-787-2333, email:
dpk1@nysaes.cornell.edu
Dr. Arthur Agnello, Dept. of Entomology, NYSAES, Geneva, NY 14456. Tel: 315-787-2341,
email: ama4@nysaes.cornell.edu
Dr. Michael P. Hoffmann, Dept. of Entomology, Cornell University, Ithaca, NY 14853. Tel:
607-255-1327, email: mph3@cornell.edu
Jeffery Gardner, Dept. of Entomology, Cornell University, Ithaca, NY 14853. Tel: 607-255-
3032, email: jg48@cornell.edu
Abstract:
Dogwood borer (DWB) infestation of burrknot tissue on apple dwarfing rootstocks is an
increasing problem throughout the northeast. One insecticide, Lorsban, is currently the only
efficient and effective chemical control available for DWB. Because of scrutiny of Lorsban
under the EPA's FQPA policy, and the desire to increase options available to growers, a search
for chemical alternatives to Lorsban has been ongoing. However, barriers to egg-laying by DWB
may offer an effective, efficient, non-chemical control that may also serve as a deterrent to
rodents. We tested four types of barriers including white latex paint, trunk wraps of Tyvek and
veterinary gauze, and a sprayable, non-woven ethylene vinyl acetate (EVA). These were
compared with the Lorsban standard and an untreated check. All barriers were effective in

  

Source: Agnello, Arthur M. - Department of Entomology, Cornell University

 

Collections: Biology and Medicine