Tobacco Suckercides and Their Applying Methods

The characteristics, applying methods and matters, to which attention should be paid, of 3 kinds of commonly used tobacco suckercides, local systemics, systemics and contacts, were introduced in detail.Systemics were most efficient and only needed to be sprayed once.Local systemics, which had double functions of systemic and contact, were applied by coating or pouring after topping.Contacts could take effects and be absorbed quickly after application by coating and pouring, however, the duration of the effects were short.