Piperonyl butoxide is a man-made pesticide used in ... "PBO is often combined with natural pyrethrins or man-made pyrethroids," NPIC says. "It has been used in pesticide products since the 1950s ...
The naturally derived compounds, abamectin, extract of neem seed (Azadirachta indica A. Jussieu), pyrethrin formulated with piperonyl butoxide and certain synthetic organic pyrethroid, carbamate, ...
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