After a two-year suspension, Spinosyn insecticides are once again allowed to be used in eastern Palm Beach and Broward counties, as of July 1.


The restrictions were put in place on the insecticides from Dow AgroSciences to prevent further development of Western flower thrips resistance, according to an e-mail from multi-county vegetable Extension specialist Gene McAvoy.


Growers have since become more aware of the resistance problem and adopted integrated pest management practices.


Growers also have begun using a broader range of insecticides with different modes of action, thus increasing thrips susceptibility to the Spinosyns.


The products include Entrust, Delegate WG and Radiant SC.


For more information on managing thrips, read University of Florida EDIS publication Managing Thrips in Pepper and Eggplant.