sentences:  Losses range from negligible to severe depending on numerous epidemiological factors including cultivar susceptibility, type of cropping system, and weather conditions 
  The host of "Diplocarpon earliana" is the strawberry plant.The disease mainly infects strawberry leaves at any stage of its life cycle, but may infect all parts of the strawberry plant, including the petioles, fruits, and stems.The disease is characterized by numerous small, purplish to brownish lesions (from 1/16 to 3/16 of an inch in diameter) with undefined borders on the upper surface of the leaf.