Piperonyl Butoxide Synergism With Two Synthetic Pyrethroids Against Lymnaea Acuminata
Published 1986 · Chemistry
Laboratory studies on toxicity of two synthetic pyrethroids viz. permethrin and cypermethrin singly and with synergist piperonyl butoxide were made on snail Lymnaea acuminata. Piperonyl butoxide reduced the LC50 of permethrin and cypermethrin at exposure periods ranging from 24 to 96 h. Decrease in LC50 value of permethrin and cypermethrin and synergistic ratio of cypermethrin with increase in exposure period from 24 to 96 h was observed.