The species of concern is Systena blanda which became a serious problem in central South Dakota in the late 1990s. The flea beetle adult is about 1/8 inch long and is shiny black with two white strips on the back. The beetle has enlarged back legs which aids in jumping. It feeds on a significant number of host plants including most vegetables, alfalfa and soybean.
Life Cycle: This is not well understood. It appears that the adult overwinters in plant debris and emerges in the spring.