“…A growth regulator or herbicide which would kill the stump or at least inhibit sprout regrowth for a consider able period of time w ithout damage to the environment or phytotoxic danger to adjacent trees, would be of value to the avocado industry. Chemicals have been used in California to control sprouts on stumps of citrus, blackjack, sweet gum, poplar, maple, ash, post oak and blue and black oak (1,2,3). The purpose of this study was to compare several chemicals as sprout inhibitors on avocado stum ps.…”