Spotted Alfalfa Aphid Reaction and Injury to Resistant and Susceptible Alfalfa Clones Reciprocally Grafted1

Abstract

Spotted alfalfa aphid survival and reproduction appeared unaltered on either scions or stocks of reciprocally grafted resistant and susceptible alfalfa clones indicating that the factors responsible for resistance were not transferred. Grafting resistant plants upon susceptible stocks is suggested as a possible technique for subjecting antibiotic or non-preferred plants to aphid injected toxin.