This makes plants healthier and more resistant to insects, drought , fungi, and disease. Lawns can survive with little or no fertilizer. Clover is not a weed and should not be killed. Its root nodules contain bacteria beneficial to the lawn and plants. Finally, don't worry about dandelions or other weeds.
Weeds are judgment calls.
Dig them out by hand if you don't like them, and be grateful for the exercise and chance to spend time in your healthy yard. Wild Increasingly today, corporations and apartment complex owners are planting lawns only in the areas around their buildings. They are leaving the outer areas of their property woodsy and natural, with tall grasses, wildflowers, evergreens, hedgerows, and bushes to provide cover and homes to wildlife. Homeowners can follow these examples on a smaller scale within their own yards. Plant a mix of shrubs, trees, and flowers that will provide nuts, berries, seeds, and nectar to creatures throughout the year, and that will attract birds, nature's best insect controllers.