Photochemical oxidant injury and bark beetle coleoptera scolytidae infestation of ponderosa pine. IV. Theory on the relationships between oxidant injury and bark beetle infestation

Journal Article · Wed May 01 00:00:00 EDT 1968 · Hilgardia; (United States)

DOI:https://doi.org/10.3733/hilg.v39n06p141· OSTI ID:6037909

Cobb, Jr, F W; Wood, D L; Stark, R W; Parmeter, Jr, J R

The authors suggest that a reduction of oleoresin exudation pressure, quantity, rate of flow, and an increase in the propensity of oleoresin to crystallize, and a reduction in phloem and sapwood moisture content enhance successful establishment of the western pine beetle and mountain pine beetle in ponderosa pine injured by photochemical atmospheric pollution. Hypotheses are presented which relate these results to host susceptibility.

• OSTI ID: 6037909
• Journal Information: Hilgardia; (United States), Vol. 39:6
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
OLEORESINS
CRYSTALLIZATION
PHOTOCHEMICAL OXIDANTS
TOXICITY
PINES
SENSITIVITY
AIR POLLUTION
BEETLES
PATHOGENS
PLANT SAP
ANIMALS
ARTHROPODS
BIOLOGICAL MATERIALS
COLEOPTERA
CONIFERS
INSECTS
INVERTEBRATES
MATERIALS
PHASE TRANSFORMATIONS
PLANTS
POLLUTION
TREES
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)