Glyphosate-resistant (GR) volunteer corn is a significant problem weed in soybean grown in rotation with corn in the midwestern United States and eastern Canada. The objective of this study was to evaluate the efficacy of glufosinate applied in single or sequential applications compared with acetylcoenzyme A carboxylase (ACCase) inhibitors applied alone or tank mixed with glufosinate for contro...

Abstract The genus Echinochloa constitutes some of the most prominent weed species found in rice ( Oryza sativa L.) production worldwide. taxonomy is complex due to its morphological variations. morpho-physiological diversity and taxonomic characteristics ecotypes infesting fields Texas are unknown. A total 54 collected during late-season field surveys 2015 2016 were characterized a common gard...

The mode o f action o f cyclohexane-l,3-dione-type (cycloxydim, clethodim , sethoxydim, tralkoxydim ) and aryloxyphenoxypropanoate-type herbicides (diclofop, fenoxaprop, haloxyfop, fluazifop) is sum m arized in this review. Both herbicide classes, though structurally com ­ pletely different, specifically block the same target enzyme i.e. the plastid acetyl-CoA carboxy­ lase (ACC) (EC 6.4.1.2). ...

Glyphosate-resistant corn and soybean are grown in rotations in the Midwest, including Nebraska. Volunteer corn is a problematic weed in soybean fields because it causes harvest problems, reduces yield and seed quality, and potentially harbors insects, pests, and diseases. Several pre-packaged herbicides have been registered in soybean in recent years, but response of volunteer corn to these he...

Yellow nutsedge (Cyperus esculentus L.) and Johnsongrass (Sorghum halepense (L.) Pers.) are two of the most difficult weeds to control mostly due their asexual reproduction. reproduces through underground tubers rhizomes. In addition, is a problematic weed because its competitive nature C4 carbon fixation pathway metabolism. It typically grows 1.8 2.5 m tall can severely reduce yields in corn, ...

molecular experiment was conducted to confirm resistant to aryloxyphenoxypropionate herbicides in winter wild oat (avena ludoviciana duriu.) populations of wheat fields in khuzestan province, at faculty of agriculture of ferdowsi university, during year of 2006. first, 44 wild oat populations from ahvaz, andimeshk, shush, shushtar, ramhormoz, susangerd, and dezful cities with a susceptible popu...

Abstract Optimum herbicide use is a key factor affecting the success of any integrated weed management strategy. The main objective current study was to implement method based on spectrometer measurements for in situ evaluation efficacy and detection potentially herbicide-resistant weeds. Field trials were conducted Greece between 2018 2020 several durum wheat fields ( Triticum Desf.). In all t...

Non-target-site resistance (NTSR) to herbicides is a worldwide concern for weed control. However, as the dominant NTSR mechanism in weeds, metabolic resistance is not yet well-characterized at the genetic level. For this study, we have identified a shortawn foxtail (Alopecurus aequalis Sobol.) population displaying both TSR and NTSR to mesosulfuron-methyl and fenoxaprop-P-ethyl, yet the molecul...

Poaceous weeds are prolific and competitive in winter crops, but they are more insidious in wheat due to their similar morphology and growing requirements. Herbicides are effective and efficient tools of weed management, however, they are vulnerable to resistance, and herbicides with different modes of action might check the dominance of a particular weed flora. The current study was undertaken...

introduction the environmental impact quotient (eiq) developed by kovach et al (1992) is used an effort to fill an important gap; i.e. the need to provide farmers and others with easy-to-use information about the adverse effects of pesticides. it represents a method for calculating the environmental impacts of pesticides, and the values obtained from these calculations can be used to compare di...