Efficacy of SPLAT® Verb for Protecting Individual Pinus contorta, Pinus ponderosa, and Pinus lambertiana from Mortality Attributed to Dendroctonus ponderosae

We evaluated the efficacy of a newly registered formulation of (-)-verbenone for protecting individual lodgepole pines, Pinus contorta Dougl. ex Loud., ponderosa pines, P . ponderosa Dougl. ex Laws., and sugar pines, P . lambertiana Dougl., from mortality attributed to mounatin pine beetle, Dendroctonus ponderosae Hopkins.