It is one of the modern insecticides with two-way internal absorption and conduction. The compound can move up and down throughout the plant, reaching the leaf surface and bark, so as to control pests such as lettuce and cabbage inner leaves, and fruit tree skin. This unique inhaling property can protect the new stems, leaves and roots, and prevent the growth of eggs and larvae of pests. The other characteristic is that the effective period is long, which can provide effective control as long as 8 weeks.