Failure to leave a service report on the front door after doing monthly etc. service when owner is not at home. Not making sure that the same service person comes each time is a mistake. Because he is then fully up to date on what was done previously and has had personal contact at times with the owner. Perimeter insect spraying for example ants, should also automatically be included in the lawn insect spraying and granular fertilization application price quoted by the sales persons. Monthly should mean 12 months not 10 months for each year contract.