. Defects in timber caused by insects. Wood; Forest insects. 18 BULLETIN 1490, U. S. DEPARTMENT OF AGRICULTURE Pinholes of these and all other kinds made in timber after felling are preventable by prompt handling and rapid utilization of felled timber. Green logs or bolts, either with or without the bark on, should be placed in the mill pond as soon as possible after being cut, especially during the warm months of spring, summer, or fall, or in damp weather. In the mill pond the logs should be floated in loose booms, so that they can be rolled over and turned to make sure that they are periodi
. Defects in timber caused by insects. Wood; Forest insects. 18 BULLETIN 1490, U. S. DEPARTMENT OF AGRICULTURE Pinholes of these and all other kinds made in timber after felling are preventable by prompt handling and rapid utilization of felled timber. Green logs or bolts, either with or without the bark on, should be placed in the mill pond as soon as possible after being cut, especially during the warm months of spring, summer, or fall, or in damp weather. In the mill pond the logs should be floated in loose booms, so that they can be rolled over and turned to make sure that they are periodically submerged on all sides. The damage can also. Fig. 19. -Grub holes and burrow caused by carpenter bee (Xylocopa sp.) in juniper from Arizona be prevented by sawing the logs into timber and lumber as soon as possible. If it is not possible to get the logs into the mill pond, they can be sun cured or dried rapidly (10, 11,15,16, 17, 18, 19, 20) to bring about conditions unfavorable to insect attack, which is accomplished by peeling them and placing them on "browse" (limbs) on knolls in open places in the sun. Other preventive measures consist of gir- dling before cutting, peeling, cutting, and leaving the tops on for a time before logging or after cutting. Barking the logs will prevent. 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 Snyder, Thomas Elliott, b. 1885. Washington, D. C. : U. S. Dept. of Agriculture
Size: 1562px × 1599px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwa, booksubjectwood
