Aecidium mori was to "Peridiopsora mori" (Barclay) K.V. Prasad et al. 1993, a combination of all three names, but it has not been adopted at all in taxonomy. It was decided later in 1993 that "Aecidium mori" was a different, distinct species, and this taxonomic assignment was kept. All of these differ from the species of "A. mori". Mulberry rust is a disease caused by "Aecidium mori", which only occurs on the "Morus" plant, the familiar "mulberry". "Morus" is grown for the breeding of "Bombyx mori" (silkworms) as part of the silk industry. The leaves of the "Morus" plant are the only
Dauer larva as "L1", "L2", "L3" and "L4". After L4, animals moult to the reproductive adult stage. However, when the environment is unfavorable, L1 and L2 animals have the option to divert their development from reproduction to dauer formation. Signals such as temperature, food supply, and levels of a dauer-inducing pheromone, a population density cue, influence this dauer decision. Dauer larvae are thus considered an alternative L3 stage larva, and this stage is sometimes preceded by L2d. L2d animals are considered pre-dauer and are characterised by delayed development and dark intestines produced by storage of fat. L2d larvae can either continue normal