Oryza glaberrima are as resistant to shattering as shatter-resistant Asian varieties, but most are not; on average, about half of the grains are scattered and lost. This is why yield is lower; when the heads of African rice are bagged before they become ripe, so that the shattered grains are caught in paper bags, the yield of African rice is the same as the yield of Asian rice. Like other grains, rice may lodge, or fall over, when grain heads are full. African rice's greater height and weaker stems makes it more likely to lodge, although it also lets it survive in
Saluria inficita the plants show dried up shoots and turn yellow. Damage can controlled by hand picking, pheromone usage, light traps and usage of chemical insecticides such as carabaryl, methyl parathion, phosphomidon or dimethoate. Saluria inficita Saluria inficita, the white stem borer, is a moth of the family Pyralidae. The species was first described by Francis Walker in 1863. It is found in India and Sri Lanka. Its caterpillars are pests of "Eleusine coracana", "Oryza sativa", "Setaria italica" and "Zea mays". The adult has brownish wings. A pale white band runs along the margin of forewings. Hindwings white. The caterpillar is whitish