Brown aphids are one of the most dangerous insect pest that damages sugarcane and other crops along with paddy rice. Its attack on the crop is very severe when the crop bears rice. The female brown aphid lay eggs between the leaves. The eggs begin to hatch in eight days. Adults suck the juice from the bottom of the plant and attack the leaves and rice after drying the whole plant. If the attack is severe, the affected plants turn yellow or brown. So cultivate resistant varieties that are immune to the disease and insects.