The phytotoxic potential of plants and the effect their active components on another plant species is being explored as a alternative to synthetic herbicides for weed control. In current study, we investigated leaves Dregea volubilis (L.f.) Benth. ex Hook.f. against four test [timothy (Phleum pratense L.), barnyard grass (Echinochloa crus-galli (L.) P. Beauv), lettuce (Lactuca sativa alfalfa (M...