. Insect and disease conditions in the United States, 1979-83 : what else is growing in our forests?. Forest insects United States; Trees Diseases and pests United States; Plants Disease and pest resistance. Figure 8. Rating a stand in Croatan National Forest in North Carolina. A prism is used to determine basal area—the area of the cross section of a tree stem at beast height. Basal area is one of the factors considered in several risk- rating systems. F-705641. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colorat
. Insect and disease conditions in the United States, 1979-83 : what else is growing in our forests?. Forest insects United States; Trees Diseases and pests United States; Plants Disease and pest resistance. Figure 8. Rating a stand in Croatan National Forest in North Carolina. A prism is used to determine basal area—the area of the cross section of a tree stem at beast height. Basal area is one of the factors considered in several risk- rating systems. F-705641. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Loomis, Robert C; Tucker, Susan; Hofacker, Thomas H; United States. State and Private Forestry; United States. Forest Pest Management. [Washington, D. C. ] : The Service
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
