Modified Water Regimes Affect Photosynthesis, Xylem Water Potential, Cambial Growth, and Resistance of Juvenile Pinus taeda L. to Dendroctonus frontalis (Coleoptera: Scolytidae)
نویسنده
چکیده
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منابع مشابه
PLANT-INSECT INTERACTIONS Relative Suitability of Virginia Pine and Loblolly Pine as Host Species for Dendroctonus frontalis (Coleoptera: Scolytidae)
Dendroctonus frontalis Zimmerman is a major disturbance agent in American pine forests, but attack preferences for various host species, and their relative suitability for reproduction, are poorly known. We studied patterns of beetle attack and reproduction during an infestation of stands containing Virginia pine and loblolly pine. Nearly all Virginia pine were attacked and killed, whereas a th...
متن کاملDevelopment of a satellite-based hazard rating system for Dendroctonus frontallis (Coleoptera: Scolytidae) in the Ouachita Mountains of Arkansas.
The southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae), is the most damaging forest insect pest of pines (Pinus spp.) throughout the southeastern United States. Hazard rating schemes have been developed for D. frontalis, but for these schemes to be accurate and effective, they require extensive on-site measurements of stand attributes such as host density, age, and...
متن کاملEffects of mass inoculation on induced oleoresin response in intensively managed loblolly pine.
Oleoresin flow is an important factor in the resistance of pines to attack by southern pine beetle, Dendroctonus frontalis Zimm., and its associated fungi. Abiotic factors, such as nutrient supply and water relations, have the potential to modify this plant-insect-fungus interaction; however, little is known of the effects of inoculation with beetle-associated fungi on oleoresin flow. We observ...
متن کاملFOREST ENTOMOLOGY Development of a Satellite-Based Hazard Rating System for Dendroctonus frontallis (Coleoptera: Scolytidae) in the Ouachita Mountains of Arkansas
The southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae), is themost damaging forest insect pest of pines (Pinus spp.) throughout the southeasternUnited States. Hazard rating schemes have been developed for D. frontalis, but for these schemes to be accurate and effective, they require extensive on-site measurements of stand attributes such as host density, age, and b...
متن کاملPhotosynthesis, water relations, and growth of planted Pinus strobus L. on burned sites in the southern Appalachians.
We measured net photosynthesis, leaf conductance, xylem water potential, and growth of Pinus strobus L. seedlings two years after planting on two clear-cut and burned sites in the southern Appalachians. Multiple regression analysis was used to relate seedling net photosynthesis to vapor pressure deficit, seedling crown temperature, photosynthetically active radiation (PAR), needle N, xylem wate...
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