Author: Lawrence Anthony VanLieshoutPublisher:
ISBN:
Category :
Languages : en
Pages : 174
Book Description
Interactions of Glyphosate with Preemergence Soybean Herbicides
Author: Lawrence Anthony VanLieshoutPublisher:
ISBN:
Category :
Languages : en
Pages : 174
Book Description
Interaction of Glyphosate with Postemergence Soybean Herbicides
Author: Julie Marie LichPublisher:
ISBN:
Category : Glyphosate
Languages : en
Pages : 214
Book Description
Interaction of Postemergence Herbicides with Glyphosate in Soybeans
Author: David K. PowellPublisher:
ISBN:
Category :
Languages : en
Pages : 368
Book Description
Field and greenhouse experiments were conducted in 2008, 2009, and 2010 to evaluate the efficacy of glyphosate combined with other broadleaf herbicides on herbicide-resistant and -susceptible weeds in Illinois. Although this research supports an improvement in control of glyphosate-resistant common waterhemp with the addition of PPO-inhibiting herbicides to glyphosate, the overall herbicide efficacy was still somewhat variable with evidence for environmental conditions that may alter efficacy of the tank mixtures. Thus, the use of preemergence, soil residual herbicides are still justified to reduce reliance on these postemergence herbicide mixtures for weed control in soybean and ultimately deter further selection of common waterhemp populations resistant to glyphosate and PPO-inhibiting herbicides.
Interaction of Glyphosate and Glufosinate with Postemergence Soybean Herbicides
Author: Robert Joseph StarkePublisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 366
Book Description
Glyphosate with and Without Residual Herbicides in No-till Glyphosate Resistant Soybeans
Author: Karen Ann CorriganInteraction of Glyphosate and Acetolactate Synthase-inhibitor Herbicides and Evaluation of Weed Management Systems in Glyphosate-tolerant Soybean (Glycine Max)
Author: Leslie Gaye DossEvaluation of Glyphosate and PPO-inhibiting Herbicide Tank-mixtures to Manage Glyphosate Resistance in Soybean
Author: Jesaelen Gizotti de MoraesPublisher:
ISBN:
Category :
Languages : en
Pages : 93
Book Description
Protoporphyrinogen oxidase (PPO)-inhibiting herbicides in combination with glyphosate for postemergence (POST) applications is one of the primary alternatives to manage glyphosate-resistant weeds and the only effective POST chemical option in conventional and glyphosate-tolerant soybean to control glyphosate and ALS-inhibiting resistant weeds. Antagonistic interactions have been reported between many different herbicide modes of action and optimal droplet size may be affected by tank-mixtures of different herbicides. Additionally, the impact of adjuvants on the factors aforementioned as well as on physical properties needs to be thoroughly investigate to maximize herbicide efficacy. Therefore, the objectives of this research were to: 1) conduct greenhouse and field studies to evaluate the impact of glyphosate and PPO-inhibiting herbicides (fomesafen or lactofen) applied alone and in tank mixtures on weed control, optimal droplet size, drift potential, and tank mixture interactions, 2) determine the influence of adjuvants on tank mixtures interactions, spray droplet-spectra, drift potential, and physical properties, (3) determine if herbicide efficacy (and thereby, weed control) is correlated to reduced surface tension and contact angle. Overall, applications from the tank mixtures resulted in antagonistic interactions and some of them were overcame by the addition of adjuvants. Droplet size and percent volume of droplets ≤ 150 μm were highly affected by nozzle type and spray solution. The oil based formulation of lactofen and crop oil concentrates were shattered by TTI nozzles due to its internal turbulence chamber creating smaller droplets and increasing driftable fines. The impact of nozzle selection on weed control was minimal and larger droplets at the rates and carrier volume used in this study could be used without compromising herbicide efficacy reducing drift potential. Adjuvants reduced the surface tension and contact angle of spray solutions; however, herbicide efficacy was only partially explained by the changes in these physical properties. Results emphasized the importance of better understanding the relationship among application variables and weed species. In addition, recommendations should be herbicide- and weed-specific in order to optimize herbicide applications and to maintain herbicide effectiveness.
The Herbicide Glyphosate
Author: E. GrossbardPublisher: Butterworth-Heinemann
ISBN:
Category : Technology & Engineering
Languages : nl
Pages : 520
Book Description
Literatuuronderzoek betreffende herbicide glyfosaat, met aandacht voor de chemie; werkingsmechanisme bij zowel onkruiden als gewassen; werkzaamheid in diverse gewassen; gevolgen voor het milieu (inclusief non-target organismen) en de toepassingsmethodiek
The Economics of Glyphosate Resistance Management in Corn and Soybean Production
Author: Michael LivingstonPublisher: CreateSpace
ISBN: 9781512272161
Category :
Languages : en
Pages : 52
Book Description
Glyphosate, known by many trade names, including Roundup, is a highly effective herbicide. Widespread glyphosate use for corn and soybean has led to glyphosate resistance, which is now documented in 14 weed species affecting U.S. cropland, and recent surveys suggest that acreage with glyphosate-resistant (GR) weeds is expanding. Data from USDA's Agricultural Resource Management Survey (ARMS), along with the Benchmark Study (conducted independently by plant scientists), are used to address several issues raised by the spread of GR weeds. Choices made by growers that could help manage glyphosate resistance include using glyphosate during fewer years, combining it with one or more alternative herbicides, and, most importantly, not applying glyphosate during consecutive growing seasons. As a result, managing glyphosate resistance is more cost effective than ignoring it, and after about 2 years, the cumulative impact of the returns received is higher when managing instead of ignoring resistance.
The Economics of Glyphosate Resistance Management in Corn and Soybean Production
Author: Michael J. LivingstonPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 45
Book Description
Glyphosate, known by many trade names, including Roundup, is a highly effective herbicide. Widespread glyphosate use for corn and soybean has led to glyphosate resistance, which is now documented in 14 weed species affecting U.S. cropland, and recent surveys suggest that acreage with glyphosate-resistant (GR) weeds is expanding. Data from USDA's Agricultural Resource Management Survey (ARMS), along with the Benchmark Study (conducted independently by plant scientists), are used to address several issues raised by the spread of GR weeds. Choices made by growers that could help manage glyphosate resistance include using glyphosate during fewer years, combining it with one or more alternative herbicides, and, most importantly, not applying glyphosate during consecutive growing seasons. As a result, managing glyphosate resistance is more cost effective than ignoring it, and after about 2 years, the cumulative impact of the returns received is higher when managing instead of ignoring resistance.