Abstract: To study on the susceptibility of various vegetables to the females of B. tau, six vegetables (sweet gourd, kankrol, cucumber, potol, bottle gourd, snake gourd) were chosen as hosts for comparable studies by using choice and non-choice test. In choice test six species of vegetables were placed in small pieces (300 g) simultaneously for laying eggs by the 50 pairs of flies for the period of 2 h. On the other hand in non-choice test 300 g of either vegetables species were placed as oviposition substrate to 50 pairs of flies. Female flies showed various responses to the vegetables with regards to oviposition and adult emergence. According to the number of eggs laying by the female flies kankrol was found most susceptible and bottle gourd was found less susceptible to B. tau.