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Trial was carried out to survey the different rates of new generation post-emergence herbicide 'Verdict' in four levels involving: 0, 0.2, 0.3 and 0.5 kg ha-1 to suppress three weeds species; Chenopodium album, Poaceae sp. and Stelaria media. Experiment was conducted in a completely randomized design [CRD] with four treatments in four replications. Weeds growth diminished mostly for verdict 0.5 kg ha-1 and then 0.3 kg ha-1 compared to 0.2 kg ha-1 and control, results of the trial revealed that a satisfactory survival reduction of Chenopodium album, poaceae and also Stelaria media were achieved with labeled-dose of verdict as 0.5 kg ha-1 and also intermediate dose 0.3 kg ha-1. In contrast, the minimum dose 0.2 kg ha-1 had a significantly highest weeds survival about three varieties of mentioned weeds in comparison with other higher doses of herbicide.

Wild mustard (Sinapis arvensis L.) is a weed that frequently infests spring wheat (Triticum aestivum L.) fields in Moscow province, Russia. It is an annual broad leaf weed, which is indigenous throughout most parts of the globe and one of the most competitive weeds of spring cereal crops. In southern Russia it is emerging as an important crop competitor. Field trials focusing on herbicide timing and efficacy on wild mustard control and spring wheat yield in the Moscow region, Kashira and Baribino districts. A PRE glyphosate application to wheat regardless of fall or spring application timing favorably suppressed wild mustard in 2018. Weeds were not controlled in 2019 with the earliest application timings of glyphosate because weeds emerged late. In comparing fall and spring application timings, the formulated combination of (iodosulfuron/mesosulfuron/antidote mefenpyr-diethyl) at both field rates provided 80% weed control for all application timings and locations, and also resulting in the greatest spring wheat grain yield. Overall, herbicide treatments performed greater when they were in the fall than during the spring. Based on POST herbicide application, tribenuron-methyl provided the greatest wild mustard suppression (75%) and also caused the highest reduction in wild mustard biomass (3.3 g), stem number (6), seed number (880) and germination percentage (33%). When wild mustard was approximately 32 weeds/m2 causedtotal wheat yield loss. [ABSTRACT FROM AUTHOR]