https://digitalcommons.unl.edu/entomologyfacpub/326/
"Comparison of Chemigated and Aerially-Applied Chlorpyrifos and Fenvale" by Thomas J. Weissling,...
Aerial and overhead center-pivot irrigation system (chemigated) applications of chlorpyrifos 4 emulsifiable concentrate (EC) and fenvalerate 2.4EC...