History of plant breeding and a cultivated crop species that has evolved from wild populations due to selective pressures from traditional farmers is called a landrace. Landraces, which can be the result of natural forces or domestication, are plants or animals that are ideally suited to a particular region or environment. An example are the landraces of rice, "Oryza sativa" subspecies "indica", which was developed in South Asia, and "Oryza sativa" subspecies "japonica", which was developed in China. For more on the mechanisms of domestication, see Hybrid (biology). Humans have traded useful plants from distant lands for centuries, and plant hunters have been sent
Earias cupreoviridis of costa suffused with pinkish yellow. There is a brownish irregular marginal band with a yellowish inner edge. Abdomen and hindwings pure white. The caterpillar is pale pinkish brown with olive-green speckles. Anterior tubercles are orange colored and the later are pinkish brown. There are jet-black spots above the spiracles. Larval food plants are "Abelmoschus esculentus", "Diospyros", "Gossypium", "Grewia tiliaefolia", "Corchorus", "Hibiscus", "Kydia calycina", "Malvastrum coromandelianum", "Oryza sativa" and "Sida cordifolia". Earias cupreoviridis Earias cupreoviridis, called the cupreous bollworm as a larva, is a moth of the family Nolidae. The species was first described by Francis Walker in 1862. It