Which Pesticide Do You Need
If you decide a pesticide is needed, read the pesticide labels carefully. You must choose a product that is specifically labeled for use on the plant you wish to protect and effective against the pest you want to control. Never use a pesticide on a food-bearing plant unless the label directs such use. The general term pesticide includes insecticides, fungicides, herbicides, rodenticides, etc.
You must determine which product is appropriate to combat your problem. For example, an insecticide is effective only against insect pests. Some insecticides target only a certain type of insect. An insecticide alone will not solve a weed or disease problem, but some pesticide products contain two or more active ingredients; for instance, a formulation for rose care can contain an insecticide and a fungicide.