Mountain pine beetle populations developed to epidemic level in 1970 on the Hebgen Lake Ranger District. Infested acreage increased from 78,000 in 1977 to 79,061 in 1978. More than 4 million trees (238 MMBF) were killed in 1978. Cold temperatures during December 1978 may cause a significant decline in the...
No-till pasture renovation can increase the quality and forage yield of underproductive pastures. Decreased erosion, lower costs, and less lost grazing time are advantages of no-till renovation compared to conventional renovation. Unwanted vegetation is first controlled with herbicides to decrease competition for introduced orchardgrass. Two field trials were conducted using...
The mesopelagic animals which are most often detected acoustically are those which contain gas bubbles within their bodies. In the waters off the Oregon coast, the most abundant animals which contain gas bubbles are myctophids. Both the size and the shape of the bubble are important to acoustic measurements. This...
Reviews fisheries legislation, hatchery program progress, dangers to salmon. Complains about seals and sea lion predation on salmon. Reviews major fishing streams of the time. Fiscal and statistical reports included.
Covers the period from December 1, 1890 to November 30, 1892. Concerned with fisheries legislation and enforcement, financial reporting, hatcheries and fisheries statistics. 4th report (1891) found in p.1-28. The fifth report (1892) (p.29-46) includes sections on fish and game laws of Oregon. A paper copy of this report may...
Covers Dec.1, 1888 - November 30, 1890. 3rd report (1889) p.1-17. 4th report (1890) p.18-57. Both reports cover legal aspects of state fisheries management, financial reporting, hatcheries and fisheries statistics. The 4th report (1890) has a section covering General Fishing Laws of Oregon: Relating to Oysters; Killing Fish with Explosives;...
This publication describes results of field research on the performance of hard red winter wheat cultivars in a late-planted no-till fallow system in the low-precipitation zone of Oregon and Washington.