Oneof the main causes of poorweed control on sugarcane farms is the occurrence of weed germination in periods during which demands on the farm's resources are at a maximum and during which wetconditions may prevent timely herbicide application or other weed control operations. It would therefore facilitate weed control if weed germination could be predicted from meteorological data and a knowle...

The objective of this study was to compare FirstAct with several tank mix partners for efficacy in herbicide-tolerant grain sorghum. (quizalofop) alone or mixtures controlled Johnsongrass 94% more. However, mixing any broadleaf herbicide generally antagonistic Palmer amaranth control. Minor sorghum injury 5% less by four weeks after postemergence treatment. Sorghum yields increased all treatmen...

Phalaris brachystachys is a common and troublesome weed in winter cereals in Mediterranean countries. A deterministic model was developed to simulate P. brachystachys seedbank dynamics in the wheat-sunflower rotation, a commonly practiced cropping system in southern Spain, under different herbicide-based management scenarios: no herbicide application, full herbicide dose (standard rate) and two...

This research was conducted to determine the efficacy of quizalofop (FirstAct) herbicide in herbicide-tolerant grain sorghum. FirstAct evaluated for and crop response Double Team (ACCase-tolerant) All herbicides controlled Palmer amaranth 90% or more volunteer corn 95% late season. Johnsongrass control 86 91%. Minor sorghum injury early season did not persist. Sorghum receiving postemergence yi...

Till now, herbicide seems to be a cost effective tool from an agronomic view point to control weeds. But long term efficacy and sustainability issues are the driving forces behind the reconsideration of herbicide dependent weed management strategy in rice. This demands reappearance of physical and cultural management options combined with judicious herbicide application in a more comprehensive ...