Download or read book Herbicides for Annual Weed Control in Eastern Oregon Wheat written by Donald J. Rydrych and published by . This book was released on 1984 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herbicides for Annual Weed Control in Wheat in Eastern Oregon written by Donald J. Rydrych and published by . This book was released on 1981 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herbicides for Annual Weed Control in Eastern Oregon Wheat written by D.J. Rydrych and published by . This book was released on 1984 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1974 Herbicides for Annual Weed Control in Wheat in Eastern Oregon written by Donald J. Rydrych and published by . This book was released on 1974 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1972 Herbicides for Annual Weed Control in Wheat in Eastern Oregon written by Donald J. Rydrych and published by . This book was released on 1972 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herbicide Usage Based on Weed Growth in Wheat in Eastern Oregon written by Donald J. Rydrych and published by . This book was released on 1971 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systems of Weed Control in Wheat in North America written by William W. Donald and published by . This book was released on 1990 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture Handbook written by and published by . This book was released on 1970 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.
Download or read book Herbicides for Grass and Herbaceous Weed Control in Oregon and Washington written by Susan G. Conard and published by . This book was released on 1984 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herbicides for Shrub and Weed Tree Control in Western Oregon written by H. Gratkowski and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herbicides for Grass and Herbaceous Weed Control Oregon and Washinton written by S. G. Conard and published by . This book was released on 1984 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Weed Control written by United States. Agricultural Research Service and published by . This book was released on 1973 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Increasing Weed management Tools with an Herbicide Safener for Control of Annual Grasses in Wheat written by Damilola A. Raiyemo and published by . This book was released on 2020 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pacific Northwest is a highly productive wheat growing region of the world. One of the challenges confronting wheat farmers in the region is control of weeds below levels that negatively impact crop yield. Annual grasses are most troublesome to wheat farmers in the region due to similarities in growth habits between wheat and annual grasses. Growers often rely on preemergence or early postemergence herbicides for control of annual grasses. Preemergence herbicides include the very-long-chain fatty acid synthesis (VLCFA) inhibitors, such as flufenacet, pyroxasulfone or their premix with other herbicides while early postemergence herbicides include (1) acetyl CoA carboxylase (ACCase) inhibitors, such as diclofop, pinoxaden, and (2) acetolactate synthase (ALS) inhibitors, such as flucarbazone, pyroxsulam, mesosulfuron. However, selection pressure from consistent herbicide use resulted in annual grasses evolving resistant populations to multiple groups of herbicides, leaving growers with few herbicide options for control. The very-long-chain fatty acid-inhibiting herbicides are effective herbicides for control of annual grasses and small-seeded broadleaf weeds in corn, soybeans, wheat, cotton and sorghum with few reported cases of resistance. Pyroxasulfone, a VLCFA inhibitor, controls annual grass and small-seeded broadleaf weeds such as Italian ryegrass, barnyardgrass, foxtails, crabgrasses, Palmer amaranth and common waterhemp in corn, wheat and soybeans at low use rate with efficacy also against populations resistant to glyphosate, acetolactate synthase inhibitors, acetyl CoA carboxylase inhibitors and triazines. Despite the use of several VLCFA inhibitors for over six decades, potential problem associated with herbicides in the group is crop injury. Differential tolerance of crop varieties under adverse environmental conditions or soil type could hinder the selective use of some herbicides. Herbicide safeners, applied either as tank mixture with the herbicide for preemergence or postemergence use or as seed treatments in the form of seed dressing have been used to protect crops from herbicide injury. Safeners increase the expression of genes encoding enzymes involved in herbicide detoxification including cytochrome P450 monooxygenases, glycosyltransferases, glutathione S-transferases and ATP-binding cassette transporters. Fluxofenim (Concep III, Syngenta Crop Protection, LLC, Greensboro, NC) is a widely used seed treatment safener for protection of sorghum from S-metolachlor injury at the rate of 0.4 g ai kg-1 seed. Perhaps, fluxofenim could protect newly bred wheat cultivars of the Pacific Northwest from soil-applied preemergence herbicides. Chapter 1 includes a general introduction to wheat production in Idaho, challenges of annual grass control in wheat, herbicide options for annual grass control in wheat, effectiveness of very-long-chain fatty acid-inhibiting herbicides in annual grass control, tolerance of crops to VLCFA inhibitors via rapid metabolism, concept of crop safening, history, mechanism of action and use. Chapter 2 provides information on series of experiments evaluating the protection of soft white wheat varieties and a hard spring wheat variety from very-long-chain fatty acid-inhibiting herbicides using fluxofenim safener. Data analysis showed that fluxofenim protection of soft white wheat varieties from VLCFA-inhibiting herbicides was variety-dependent. Fluxofenim significantly increased dry biomass of varieties LWW 15-72223, LWW 14-75044, Bruneau and UI Sparrow for S-metolachlor and dimethenamid-P herbicides, and LWW 15-72458 for pyroxasulfone herbicide. Varieties 09-15702A, UI Castle CL+ and UI Palouse CL+ were however tolerant to the three herbicide treatments regardless of fluxofenim treatment at the herbicide rates evaluated. Dose-response analysis showed effective doses resulting in 10% biomass reduction due to fluxofenim-alone treatment ranged from 0.55 g ai kg-1 seed for UI Magic CL+ to 1.23 g ai kg-1 seed for UI Palouse CL+. Effective doses resulting in 90% tolerance to S-metolachlor due to fluxofenim ranged from 0.07 g ai kg-1 seed for UI Castle CL+ to 0.55 g ai kg-1 seed for Brundage 96 and a similar pattern of response to dimethenamid-P and pyroxasulfone herbicides were also observed for the varieties, suggesting UI Castle CL+ has some level of tolerance to the herbicides. Glutathione S-transferase (GST) assay revealed that variety UI Castle CL+ had a 58% increase in GST specific activity relative to UI Sparrow and Brundage 96 with 30% and 38% increase in enzyme activity respectively at 0.36 g ai kg-1 seed treatment. Chapter 3 describes experiments to determine fluxofenim protection of six soft white winter wheat varieties selected based on prior greenhouse experiments from S-metolachlor, dimethenamid-P or pyroxasulfone injury under field conditions. Wheat density, height, head count and grain yield were evaluated in response to herbicide treatments with or without fluxofenim safener. Results indicated that fluxofenim had a negative impact on parameters observed in these field studies. Fluxofenim at 0.4 g ai kg-1 seed sorghum label rate failed to confer protection to soft white wheat varieties in the field studies conducted in fall 2018. The results of these field studies were therefore inconclusive and efficacy of fluxofenim to protect winter wheat would need to be evaluated further under different environmental conditions and soil types.
Download or read book Suggested Guide for Weed Control 1969 written by and published by . This book was released on 1969 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Herbicides for Shrub and Weed Tree Control in Western Oregon written by H. Gratkowski and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicides were tested on 16 common shrubs and weed trees during the past 24 years. The woody plants included snowbrush ceanothus, deerbrush ceanothus, mountain whitethorn, varnishleaf ceanothus, sprouting and nonsprouting forms of greenleaf manzanita, hairy manzanita, hoary manzanita, golden chinkapin, golden evergreenchinkapin, Saskatoon serviceberry, Pacific madrone, salmonberry, western thimbleberry, scrub tanoak, and canyon live oak. Chemicals tested included 2,4-D, dichlorprop, 2,4,5-T, silvex, 2,4-DB, amitrole, amitrole-T, 2,3,6-TBA, AMS, picloram, KreniteTM, triclopyr, and an experimental carbamate compound. Low volatile esters of 2,4-D and 2,4,5-T proved the most effective and versatile herbicides for silvicultural use in western Oregon. Results of the screening tests are related to comparable data from small plot tests and project-scale aerial spray trials. To aid silviculturists, useful treatments and the most effective herbicide are shown in bold-face type for each shrub and weed tree.
Download or read book Extension Circular written by and published by . This book was released on 1992 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
