Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl written by and published by . This book was released on 1981 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl written by Douglas L. Parker and published by . This book was released on 1978 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1977 written by Douglas L. Parker and published by . This book was released on 1978 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1980 written by I. R. Ragenovich and published by . This book was released on 1981 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1978 written by Douglas L. Parker and published by . This book was released on 1979 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1979 written by Douglas L. Parker and published by . This book was released on 1980 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1977 written by William G. Telfer and published by . This book was released on 1984 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1977 written by William G. Telfer and published by . This book was released on 1982 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl 1977 written by William G. Telfer and published by . This book was released on 1983 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Pest Management Report written by United States. Forest Service. Southwestern Region and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression and Evaluation Project Using Carbaryl written by Douglas L. Parker and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1977, carbaryl was aerially applied to a new and increasing western spruce budworm, Choristoneura occidentalis Free., outbreak in an isolated mountain range in New Mexico. Sampling results showed that the larval densities were drastically reduced and remained low 3 years following treatment. In a comparable untreated check area, larval densities were significantly higher. The average density of egg masses per meter square of foliage confirmed the results of the larval sampling and indicated that larval densities would be low in 1980. Relative to the check area, the density of larvae was low in the treated area in 1980, although larval densities reached sufficient levels in portions of three subunites to cause light to moderate defoliation. Tree defoliation in the treatment area, however, remained well below levels recorded in the untreated area. This project was the first attempt to evaluate multi-year effects of an aerially applied chemical on this defoliator. The results indicate that satisfactory suppression of a new and increasing outbreak can be achieved for at least 4 years. No lasting adverse effects of the aerial application of carbaryl could be identified for aquatic organisms and birds. Most species of western spruce budworm parasites were not significantly affected by the treatment program. The percent parasitism by some species increased and others decreased during the 3 years of sampling.

Download or read book Record of Decision for Management of Western Spruce Budworm in Oregon and Washington written by and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Insecticide Treatments on Subsequent Defoliation by Western Spruce Budworm in Oregon and Washington written by Katharine A. Sheehan and published by . This book was released on 1996 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Draft Environmental Impact Statement for Managing Western Spruce Budworm in Oregon and Washington written by and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Management OR WA written by and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Western Spruce Budworm Suppression Project Using Bacillus Thuringiensis Berliner 1985 written by Terrence J. Rogers and published by . This book was released on 1992 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Final Environmental Impact Statement written by and published by . This book was released on 1989 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: