Home Lawn Disease and Insect Pests
Properly maintained and healthy turfgrass will tolerate the presence of low levels of pestpopulations without suffering permanent damage.
Poor cultural practices, environmental factors and pest activity can produce symptoms that appear the same. The first step to solving any problem is proper pest identification. Correct and timely identification can not only save your lawn but your time, money and unnecessary use of pesticides.
Each disease or insect has symptoms that can be associated with it; each also needs a specific set of circumstances for those symptoms to occur. These circumstances involve a host (in this case a turfgrass plant), the insect or disease itself, and favorable environmental conditions for the insect or disease to develop.
The reduction of insect and disease activity begins with good cultural practices including mowing, irrigation, thatch control, cultivation practices and establishment. A proper control method may or may not involve the use of a pesticide. Pesticides need only be applied to those areas where the pest is evident rather than the whole lawn.
Links to University of Minnesota Extension information on lawn diseases and insects: