Genetic and phenotypic variability for constitutive oleoresin flow in loblolly pine
Abstract
In loblolly pine, Pinus taeda L., flow of oleoresin at penetration sites is considered to be a major component of defense against attack by the southern pine beetle (SPB) Dendroctonus frontalis Zimm. Trees with copious amounts of constitutive or preformed oleoresin appear to be most able to prevent or impede colonization by this destructive insect pest of southern pines.