Author's Organization：Laboratory of Applied Entomology and Nematology, Faculty of Agriculture, Nagoya University Laboratory of Applied Entomology and Nematology, Faculty of Agriculture, Nagoya University:(Present address)Tropical Agriculture Research Center
A laboratory bioassay was conducted to evaluate three kinds of aromatic amines, phenethylamine hydrochloride, tyramine hydrochloride and hordenine sulfate, as sucking deterrents for the rice plant- and leafhopper, Nilaparvata lugens, Sogatella furcifera, Laodelphax striatellus, and Nephotettix cincticeps. These aromatic amines reduced the insect sucking on 5% sucrose solution by 80-90% at 100ppm, and about 50% at 10-50ppm.
