USDA Forest Service Research Paper RM.
Rocky Mountain Forest and Range Experiment Station, U.S. Department of Agriculture, 1976 - Forests and forestry
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40 percent 5,012 whorls examined 89 percent Albuquerque Arizona bush/crook—are prevalent cant height growth categorized as prune causing the greatest Chevelon Ranger District Collins Colo Combinations of deformities—crook/prune damage categories damage to ponderosa Daniel Deformities causing deforms young pines Dudley Burn Entomologist escaped tip moth European pine shoot examined escaped tip fork greatest reduction growth also occur height growth following height growth loss Heikkenen 1962 initial attack insect damage Jennings Keywords lateral shoots Lessard mining growth tips moth damage decreases moth deforms young occur most frequently pine shoot moth pine tip moth pines by mining Pinus ponderosa ponderosa pine reproduction posthorn prevalent at Chevelon prune/crook prune/fork Range Exp red pine reduction in height Rhyacionia neomexicana Dyar Rocky Mt southwestern pine tip spiketop study plots Talerico and Heikkenen tile at Southwest tip moth damage tip moth deforms tree deformities tree height increases USDA Forest Service whorls examined escaped