Oryza glaberrima mature more quickly, and may be sown directly on higher ground, eliminating the need to transplant seedlings. Most is rain-watered, and the soil is often not cultivated. African rice has profuse vegetative growth, which smothers weeds. It exhibits better resistance to various rice pests and diseases, such as blast disease, African rice gall midge ("Orseolia oryzivora"), parasitic nematodes ("Heterodera sacchari" and "Meloidogyne" spp.), rice stripe necrosis virus, rice yellow mottle virus, and the parasitic plant "Striga". Most African rices shatter more than Asian rices, possibly because they have not been domesticated for as long. A few varieties of African rice
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