Bushkiller was evaluated under inter- and intraspecific competition. Inexperiment 1, bushkiller, trumpetcreeper, and wild grape weregreenhouse-grown alone and in two or three species mixtures in pots. Of thethree species, bushkiller grew the tallest and had the greatest finalbiomass when grown alone. When all three species were grown together,bushkiller grew over twice the height of trumpetcreeper, over three timesthe height of wild grape, and over four times the biomass of eithercompeting species. Plots of height over time showed that competition did notaffect bushkiller or wild grape growth rate, but trumpetcreeper growth wasreduced when grown with bushkiller. In experiment 2, bushkiller was grown incultures of one, two, and three plants per pot to determine intraspecificcompetition effects on growth. Final height of bushkiller was not affectedby intraspecific competition; however, bushkiller biomass decreased withincreasing competition.
