| field evaluation of insecticides for control of cabbage maggot (diptera: anthomyiidae) in rutabaga in canada. | at the time of this research, there were only two insecticides registered for control of cabbage maggot, delia radicum l., in rutabaga in canada, one of which (diazinon) will be deregistered by 2017, and resistance having been reported in some areas for the other (chlorpyrifos). to screen for chemistries to replace these organophosphates, and obtain efficacy data comparable between key vegetable brassica production areas in canada, four small plot field studies were conducted concurrently in bri ... | 2017 | 28031474 |