+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Susceptibility of loblolly pine to bark beetle attack following simulated wind stress

Susceptibility of loblolly pine to bark beetle attack following simulated wind stress

Forest Ecology and Management. August; 761-3: 95-107

Thirty-year-old loblolly pine (Pinus taeda) trees were subjected to simulated wind stress, which included bending stems with a winch and cable system and pruning branches on the same tree to simulate crown loss. The response of treated trees was compared with that of untreated control trees to determine the effect that extreme winds, such as those from hurricanes, have on the growth and function of surviving trees. The impact of acute wind stress on the susceptibility of pine trees to attack by the bark-feeding beetle genera Dendroctonus and Ips also was investigated. The reduction of photosynthetic capacity due to 50% leaf area loss from branch pruning decreased stem diameter growth by 67% after 1 year. It also decreased oleoresin flow, a critical defense mechanism of pines against bark beetle attack. Short-term mortality of fine roots was observed for trees receiving branch pruning, but fine root biomass quickly returned to levels similar to controls. Little damage to larger roots was observed. During the year following treatment, treated pines had similar xylem water potentials compared with control trees as well as similar gas exchange rates, except for higher photosynthetic rates per unit leaf area for treated trees. Any reduction in xylem water flow caused by stem bending appeared to be offset by decreased transpirational demand due to branch pruning. A trend of greater numbers of beetles trapped near stressed trees was observed in the study, but the increase was statistically significant only for one period. Overall, the number of beetles trapped was not large and there was no evidence of successful beetle attack on any tree. Loblolly pine trees subjected to treatment similar to that received from acute wind stress were not dramatically impaired physiologically under the conditions in this study and were not immediately prone to bark beetle attack, especially where crown loss was not severe.

(PDF emailed within 0-6 h: $19.90)

Accession: 002973334

Download citation: RISBibTeXText

DOI: 10.1016/0378-1127(95)03552-l

Related references

Physiological response of loblolly pine and susceptibility to bark beetle attack following simulated wind stress. Bulletin of the Ecological Society of America 74(2 SUPPL ): 241, 1993

Effects of bark girdling on carbohydrate supply and resistance of loblolly pine to southern pine beetle (Dendroctonus frontalis Zimm.) attack. Forest Ecology and Management 50(3-4): 317-330, 1992

Variation in the constitutive defensive system of loblolly pine in relation to bark beetle attack. Forest science 38(2): 457-466, 1992

Testing loblolly pine wind firmness with simulated wind stress. Canadian Journal of Forest Research 23(9): 1760-1765, 1993

Changes in Physiological Functioning in Loblolly Pine Trees Undergoing Bark Beetle Simulated Mortality. Forest Science 65(3): 312-323, 2019

Changes in bark beetle susceptibility indicators in a lightning struck loblolly pine. Canadian Journal of Forest Research 15(2): 397-399, 1985

Environment and ontogeny modify loblolly pine response to induced acute water deficits and bark beetle attack. Forest Ecology & Management 73(1-3): 97-110, 1995

Effect of thinning damage on bark beetle susceptibility indicators in loblolly pine. Forest Service general technical report SO United States Southern Forest Experiment Station: (54) 471-479, 1985

Susceptibility of pine trees to bark beetle attack. Arborist S News 14(12): 149-151, 1949

Contrasting Patterns of Diterpene Acid Induction by Red Pine and White Spruce to Simulated Bark Beetle Attack, and Interspecific Differences in Sensitivity Among Fungal Associates. Journal of Chemical Ecology 41(6): 524-532, 2016

Effects of bark beetle inhibitors on landing and attack behavior of the southern pine beetle and beetle associates. Environmental Entomology 8(2): 360-364, 1979

Foliage coloration changes in Loblolly Pine during Southern Pine beetle attack. J. econ. Ent, 64: 5, 1298-9, 1971

Pupicidal and juvenilization activity of bark extractives from loblolly pine for the southern pine beetle. Plant Physiology 61(4 SUPPL): 23, 1978

Influence of fungal associates of the Southern pine beetle on inner bark constituents of loblolly pine. Phytopathology news 12 (9) 184, 1978

Pine mortality in southeast Spain after an extreme dry and warm year: interactions among drought stress, carbohydrates and bark beetle attack. Trees 29(6): 1791-1804, 2015