Describe the various methods of controlling pests attacking stored grains.

Field crops are infested with a variety of pests. Ther e are various methods by which insects and diseas es can be controlled. One of the most common and effective methods is the use of pesticides or biocid es which include insecticides (for killling the insects). weedicides (for killing the weeds) and fungicides (for killing the fungi). Thus chemicals used to kill the pest s, e.g. weeds insects, mites, rodents and fungi are pesticides. These chemicals are sprayed on crop plants or used treating seeds and soil.