Effectiveness of Esfenvalerate, Cyfluthrin, and Carbaryl in Protecting Individual211 Lodgepole Pines and Ponderosa Pines from Attack by 'Dendroctonus' spp

摘要

The effectiveness of registered and experimental application rates of211u001eesfenvalerate (Asana XL), cyfluthrin(Tempo WP and Tempo 2), and carbaryl(Sevimol 211u001eand Sevin SL) was assessed for protection of individual high-value lodgepole 211u001epines from mountain pine beetles in Montana and ponderosa pines from western pine 211u001ebeetles in Idaho and California. The boles of the trees were treated with a 211u001ecandidate insecticide treatment to a height of about 10m, the surface likely to 211u001ebe attacked by the bark beetles. None of these treatments protected these trees 211u001efrom induced attack by western pine beetle for one summer.