J. Agric. Entomol. 9(4);273-281 (October 1992) ABSTRACT A portable automatic sprayer, actuated when cattle obtain mineral, was tested against face fiies and pyrethroid·resistanL horn nics using 0.5% Al dichlorvos in a waler spray mixture. Horn ny populations were initially 48-fold resistant to pCt-methrin with no '"esistancc to diazinon. Horn Oy control averaged 90.3 to 99.1% reduction. Resista...

Acylpeptide hydrolase (APH) unblocks N-acetyl peptides. It is a major serine hydrolase in rat blood, brain, and liver detected by derivatization with (3)H-diisopropyl fluorophosphate (DFP) or a biotinylated fluorophosphonate. Although APH does not appear to be a primary target of acute poisoning by organophosphorus (OP) compounds, the inhibitor specificity of this secondary target is largely un...