Only a fraction of the insect species teeming from your lawn actually causes damage. Pesticides can kill both beneficial and harmful insects.
1) Granular "weed and feed" products are over applied to the entire lawn, not merely to areas of weeds, so are counter to pesticide reduction strategies.
Insect Repellent Companion Plant e.g. Plant marigolds around tomatoes and cabbages.
As public concern about pesticides increases, more and more lawn care companies may be advertising their products and services as organic or environmentally friendly.