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Carbaryl Applied At Reduced Dosage Rates For Control Of Western Spruce Budworm
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Book Synopsis Carbaryl Applied at Reduced Dosage Rates for Control of Western Spruce Budworm by : George P. Markin
Download or read book Carbaryl Applied at Reduced Dosage Rates for Control of Western Spruce Budworm written by George P. Markin and published by . This book was released on 1983 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbaryl is registered for control of the western spruce budworm (Choristoneura occidentalis Freeman), at the dosage rate of 1.12 kg per hectare. That rate and two lower ones were field tested in western Montana in July 1979 to determine if a lower rate would be as effective as the registered dosage. Each dosage was applied to five randomly selected 20-ha plots by helicopter with Beecomist nozzles while larvae were in the fifth and early sixth instars. Reduced dosages of 0.28 and 0.56 kg a.i. per hectare resulted in 83 and 93 percent population reduction, respectively, compared with 93 percent population reduction for the registered dosage of 1.12 kg a.i. per hectare.
Book Synopsis Seed Dissemination in Small Clearcuttings in North-central California by : Philip M. McDonald
Download or read book Seed Dissemination in Small Clearcuttings in North-central California written by Philip M. McDonald and published by . This book was released on 1980 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a 1964-1967 study on the Challenge Experimental Forest, seedfall was evaluated in 2-, 5-, and 10-acre circular clearcuttings. During the 4 years, 10 seed crops, ranging from light to bumper, were produced by ponderosa pine. white fir, Douglas-fir, and incense cedar. Seedfall ranged from 76 to 40,691 sound seed per acre (188 to 100,547/ha) for a single species in a given year. From 89 to 100 percent of each species' seed fell within an area 1 1/2 times the height of the average dominant tree. Overall, seed distribution was highly variable.
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1985 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Santa Fe National Forest (N.F.), Western Spruce Budworm Management Program by :
Download or read book Santa Fe National Forest (N.F.), Western Spruce Budworm Management Program written by and published by . This book was released on 1983 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerial Field Tests of Five Insecticides on Western Spruce Budworm in Idaho and Montana, 1978-1980 by : George P. Markin
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 Synopsis Western Spruce Budworm Management Plan (WA,OR) by :
Download or read book Western Spruce Budworm Management Plan (WA,OR) written by and published by . This book was released on 1976 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Note PSW. written by and published by . This book was released on 1978 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research for Tomorrow's Forests by :
Download or read book Research for Tomorrow's Forests written by and published by . This book was released on 1984 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Western Spruce Budworm Management (OR,WA) by :
Download or read book Western Spruce Budworm Management (OR,WA) written by and published by . This book was released on 1989 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Newsletter written by and published by . This book was released on 1978 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Environmental Impact Statement by :
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:
Book Synopsis Draft Environmental Impact Statement for Managing Western Spruce Budworm in Oregon and Washington by :
Download or read book 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 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carson National Forest (N.F.), Western Spruce Budworm Management Plan by :
Download or read book Carson National Forest (N.F.), Western Spruce Budworm Management Plan written by and published by . This book was released on 1981 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kaibab National Forest (N.F.)/Grand Canyon National Park (N.P.), Western Spruce Budworm by :
Download or read book Kaibab National Forest (N.F.)/Grand Canyon National Park (N.P.), Western Spruce Budworm written by and published by . This book was released on 1981 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spruce Budworm Cooperative Program, North Central Washington by :
Download or read book Spruce Budworm Cooperative Program, North Central Washington written by and published by . This book was released on 1978 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forestry Bibliography 1981-84: Indexes by :
Download or read book Forestry Bibliography 1981-84: Indexes written by and published by . This book was released on 1985 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
