"And it keeps wanted insects in and unwanted insects out."

If this process is repeated for every yellow jacket nest, the unwanted insects should be brought under control.

Also, check to be sure that no unwanted insects have crawled into the drainage holes.

The cattle egret in America as well does the same task of removing the unwanted insects and parasites.

Chemicals to kill unwanted insects ("pesticides") were put on seeds before they were planted.

Like other damselflies they help people by eating large numbers of pesky insects, including mosquitoes, common houseflies, and other unwanted insects.

It is essential to target the unwanted insects with the proper controls.

These unwanted insects pollute the trap.

The subtropical climate replete with ample sunshine and water is not only conducive to crop growth but also to growth of unwanted insects, weeds and diseases.

Pesticides, which are normally used to control unwanted insects and plants, may cause a variety of negative effects on non-target organisms.