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EVALUATING TREATMENT IN INFESTATIONS
EVALUATION OF THE SYMPOSIUM
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acres active trees aerial photographs analysis applied area-wide attacked trees bark beetle basal area beetle populations Bienville National Forest cacodylic acid cell Cells Trees contingency table cut-and-leave data base Dendroctonus frontalis developed dispersion distribution east Texas Entomol Entomologist ESPBRAP esti estimation procedures Figure flight frequency gallery length ground checking host type HURDLE MILLS infested bark area infested trees initial insect J. L. Foltz Julian date landowner loblolly Mayyasi measure ment methods National Forest number of trees outbreak pattern peripheral spots pest management plots popu population density population dynamics R. N. Coulson reemergence regression Research salvage sampling season simulations sketch mapping southern pine beetle SPB infestations SPB population SPB spots spot growth spot proliferation spots controlled stage stand density stand type statistical survey symposium techniques Texas Forest Service timber tion trap treat treatment effect treatment spots treatment tactics tree mortality USDA variables within-tree populations