Chemical structure and fungicide selectivity

Adoxophyes orana could be mass-reared on a wheat germ medium with agar as a gelating agent or with agar replaced by lucerne meal. On these media, production reached 131 and 111 moths per rearing container, respectively. Good sanitary measures and well chosen rearing conditions were important. The rearing system was analysed and modelled by a computer programme written in Fortran IV, which allowed calculation of the optimum rearing method. The minimum cost per moth was calculated atf0.015–0.03, depending on wages and size of culture. The calculations were based on preliminary estimates and need to be refined.