High rates of nitrogen can cause topgrowth at the expense of root development or plant food storage. Where soils are highly acidic or alkaline, iron or magnesium may be required. Any turf area will have a wide variety of insect populations at any given time. Some insects, like sod webworms or white grubs, can cause damage to lawns. Others, such as fleas and ticks, are bothersome to people and pets.
Insect damage can be difficult to spot.
It can appear similar to disease problems, chemical burn or drought. Insects can live above the soil level in the plants or thatch layer or below the soil level in the roots.