Global occurrences of herbicide resistant weed populations have increased the demand for development of new herbicides targeting novel mechanisms of action. Metagenomic approaches to natural drug discovery offer potential for isolating weed suppressive compounds from microorganisms. In past research, traditional techniques entailed isolating compounds from living organisms, whereas metagenomic ...

to evaluate the effects of sowing date, cultivars and herbicides on weed species control and soybean yield, a strip split plot layout in as a randomized complete block design with three replications was conducted in dasht-e-naz company sari-iran, in 2008. treatments included two planting dates (planting june 7th and 27th), soybean cultivars (bp, jk, 032, 033 and sahar) and herbicide application...

Effective weed control prior to seeding is essential for proper turfgrass establishment since competition from weeds can cause sward fail. Herbicides with multiple active ingredients different chemical families could increase efficacy, but hinder the of newly seeded turf. Research trials were initiated in fall 2020 Olathe and Manhattan, KS, determine if tall fescue (Schedonorus arundinaceus) be...

Poly(epsilon-caprolactone) (PCL) nanocapsules have been used as a carrier system for the herbicide atrazine, which is commonly applied to maize. We demonstrated previously that these atrazine containing polymeric nanocapsules were 10-fold more effective in the control of mustard plants (a target species), as compared to a commercial atrazine formulation. Since atrazine can have adverse effects ...

Gene mutations endowing herbicide resistance may have negative pleiotropic effects on plant fitness. Quantifying these is critical for predicting the evolution of and developing management strategies herbicide-resistant weeds. This study reports acetohydroxyacid synthase (AHAS) Trp574Leu mutation throughout life cycle feral radish (Raphanus sativus L.). Resistant susceptible phenotypes responde...

Field experiments were carried out over three years (2004-05, to 2006-07) to study the efficacy of a post-emergence dual-purpose herbicide (mesosulfuron – methyl (3%) + iodosulfuron – methyl – sodium (0.6%) + mefenpyr – diethyl (9%) to control Lolium rigidum Gaud. and broad-leaved weeds in no-till wheat (Triticum aestivum L.). A ready herbicide mixture was used at three doses (6+1.2, 9+1.8 and ...