Seedling diseases and injuries. Leaf diseases and injuries. Body and branch disease and injuries. Root diseases and injuries. Alder diseases. Arbor-vite diseases. Ash diseases. Bald cypress diseases. Basswood diseases. Beech diseases. Birch diseases. Buckeye diseases. Butternut diseases. Catalpa. Cedar diseases. Chestnut diseases. Elm diseases. Fir diseases. Hackberry diseases. Hemlock diseases. Huckory diseases. Juniper diseases. Larch diseases. Locust diseases. Maple diseases. Oar diseases. Pine diseases. Polar diseases. Spruce diseases. Sycamore or plane tree diseases. Walnut diseses. Willow diseases. Tree surgery. Spraying and dusting for leaf diseases.

A sample of 130 incense-cedar (Libocedrus decurrens Torr.) trees was selected from the EIdorado National Forest in California. The trees were felled and bucked into 403 woods-length logs and processed through a sawmill cutting Shop and Common grades of lumber. Recovery estimates are shown for woods-length logs based on Scribner board-foot scale and cubic-foot scale. Analysis showed that board-foot recovery ranged from 169 percent for 6-inch logs to 103 percent for 34-inch logs. Cubic-volume recovery of rough green lumber increased from 50 percent to 62 percent for the same range of diameters. Yields of higher quality lumber (Shops and Moulding) increased as log diameter increased. Percentage of Scribner scaled defect was found to be correlated with several measures of product recovery.