Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern
Help
 

GeoTreesearch


Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

(967 KB)

Title: Effects of a Commercial Chitosan Formulation on Bark Beetle (Coleoptera: Curculionidae) Resistance Parameters in Loblolly Pine

Author: Klepzig, K. D.; Strom, B. L.

Date: 2011

Source: J. Entomol. Sci. 46(2): 124-134

Publication Series: Journal/Magazine Article (JRNL)

Description: A commercially available chitosan product, Beyond™, was evaluated for its effects on loblolly pine, Pinus taeda L., responses believed related to bark beetle resistance. Treatments were applied 4 times at approx. 6-wk intervals between May and November 2008. Five treatments were evaluated: ground application (soil drench), foliar application, ground and foliar applications combined, water-only (soil drench), and untreated. Two response variables were measured: yield of oleoresin accumulated at 48 h from wounds inflicted at breast height (5 sample periods) and area of lesion formed in response to inoculation with Ophiostoma minus (Hedgcock) Sydow & P. Sydow (2 sample periods). One treatment, ground application of Beyond, resulted in a significant increase in oleoresin yield (about 40% experiment-wide). Foliar treatment alone, or combined with ground application, did not result in a significant change in oleoresin yield. None of the treatments resulted in a difference in lesion area produced in response to inoculation with 0. minus. In summary, application of a commercially-prepared chitosan formulation to loblolly pine produced inconsistent responses in tree parameters associated with bark beetle resistance, suggesting that exogenously applied chitosan preparations have limited utility for managing bark beetles.

Keywords: induced response, southern pine beetle, blue stain, chitin, Ophiostoma minus

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Klepzig, K. D.; Strom, B. L. 2011. Effects of a Commercial Chitosan Formulation on Bark Beetle (Coleoptera: Curculionidae) Resistance Parameters in Loblolly Pine. J. Entomol. Sci. 46(2): 124-134.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.