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Book Western spruce budworm in Idaho and Montana  1976

Download or read book Western spruce budworm in Idaho and Montana 1976 written by United States. Forest Service. Northern Region and published by . This book was released on 1976 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Western Spruce Budworm in Idaho and Montana  1976

Download or read book Western Spruce Budworm in Idaho and Montana 1976 written by United States. Forest Service. Northern Region and published by . This book was released on 1976 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Western Spruce Budworm Management Plan  ID MT

Download or read book Western Spruce Budworm Management Plan ID MT written by and published by . This book was released on 1977 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Western Spruce Budwordm Problem in Idaho and Montana  1976

Download or read book The Western Spruce Budwordm Problem in Idaho and Montana 1976 written by ESTADOS UNIDOS. Department of Agriculture and published by . This book was released on 1976 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aerial Field Tests of Five Insecticides on Western Spruce Budworm in Idaho and Montana  1978 1980

Download or read book Aerial Field Tests of Five Insecticides on Western Spruce Budworm in Idaho and Montana 1978 1980 written by George P. Markin and published by . This book was released on 1986 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each of five insecticides was applied at two or three application rates by helicopter to 20-ha plots. Effectiveness of each application rate against western spruce budworm (Choristoneura occidentalis Freeman) was judged by cornparing larval population reduction at I5 or 20 days after treatment against populations in untreated check plots. Performance of each insecticide was then compared with the levels of control normally obtained with two registered insecticides. carbaryl and acephate (90 + pct) usually used for western spruce budworrn control. Maximum population reduction from sulprofos (58 pct), phosmet (59 pet). and from the growth regulator BAY SIR- 8514 (58 pet), at all application rates tested was below the acceptable minimum of 90 + percent population reduction. Methomyl reduced populations 92.3 percent at 0.28 kg a.i./ha and 94.0 percent at 0.56 ke a.i./ha. Permethrin at 0.11 kg a.i.iha reduced the population by 93.9 percent. Methonyl and permethrin at these application rates appeared to be as effective as the registered insecticides acephate and carbaryl.

Book Managing Trees and Stands Susceptible to Western Spruce Budworm

Download or read book Managing Trees and Stands Susceptible to Western Spruce Budworm written by Martha H. Brookes and published by . This book was released on 1985 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Western Spruce Budworm Egg Mass Dimensions

Download or read book Western Spruce Budworm Egg Mass Dimensions written by Richard Irvin Washburn and published by . This book was released on 1973 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Pilot Project with Orthene for Control of the Western Spruce Budworm  McCall  Idaho  1977

Download or read book A Pilot Project with Orthene for Control of the Western Spruce Budworm McCall Idaho 1977 written by United States. Forest Service. Intermountain Region and published by . This book was released on 1978 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spruce Budworms Handbook

Download or read book Spruce Budworms Handbook written by Clinton E. Carlson and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetics of Outbreaking Western Spruce Budworm  Choristoneura Occidentalis Freeman  Lepidoptera  Tortricidae   Populations in Idaho and Montana

Download or read book Genetics of Outbreaking Western Spruce Budworm Choristoneura Occidentalis Freeman Lepidoptera Tortricidae Populations in Idaho and Montana written by Elizabeth A. Willhite and published by . This book was released on 1979 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Outbreaks of the Western Spruce Budworm in the American Northern Rocky Mountain Area from 1922 Through 1971

Download or read book Outbreaks of the Western Spruce Budworm in the American Northern Rocky Mountain Area from 1922 Through 1971 written by Philip Cornwell Johnson and published by . This book was released on 1975 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: