近年来，砀山酥梨药害问题相当严重，且有逐年加重的趋势。一旦发生药害，轻者叶片或果实出现斑点、黄化、失绿、卷叶、果实畸形、色泽风味恶化，重者造成落叶、落果，甚至绝收死株现象，严重影响酥梨的产量和质量。１９９９～２００１年，连续发生几次大面积的药害，使果农损? In recent years, Dangshan Pear pesticide injury problem is quite serious, and there is a trend of increasing year by year. In the event of phytotoxicity, the leaves or fruits of the lesser spots, yellowing, chlorosis, foliar leaves, fruit deformities, deterioration of color and flavor, heavy decay, deciduous fruit and even death, which seriously affect the yield and quality of pear . From 1999 to 2001, several times in a row occurred in a large area of ​​drug injury, so that farmers damage?