Alcea "Alcea" species are used as food plants by the larvae of some Lepidoptera species including "Bucculatrix quadrigemina" and "Vanessa cardui", the painted lady. The mallow flea beetle ("Podagrica fuscicornis") is a pest that makes tiny holes in the leaves. Cutworms, aphids, and capsid bugs use the plant as a food source in hotter and drier conditions. A number of weevils use "A. rosea" as their host plant, including "Rhopalapion longirostre", "Alocentron curvirostre", and "Aspidapion validum". The plants are also susceptible to the pathogenic fungus "Puccinia malvacearum", the hollyhock rust. A hollyhock flower, known in Japan as , was incorporated into
Roseomonas rosea Roseomonas rosea Roseomonas rosea (formerly "Muricoccus roseus") is a species of Gram negative, strictly aerobic, coccobacilli-shaped, pink-colored bacteria. It was first isolated from a children's day care center in 1995. Further work on the isolate led to the proposal of a new genus and species, "Muricoccus roseus" in 2003. Further work on "M. roseus" found that the species belonged in the genus "Roseomonas", and also led to "Teichococcus ludipueritiae" being reclassified as "Roseomonas ludipueritiae" in 2009. The new name for the species is "Roseomonas rosea". The species name is derived from Latin "rosea" (pink), referring to the pink color the