and animals (including humans) subjected to it.
There are three major categories of chemicals used in the garden: pesticides, to control insects; fungicides, to control fungus-borne plant diseases; and herbicides, to control weeds. There are also bacteriocides to prevent or cure bacterial diseases; nematicides, to control nematodes; and rodenticides, to control rodents.
While all of these categories will be discussed in this section, emphasis will be given to the first two.
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