梨花象对梨树花蕾的危害及防治近几年来，梨花象对我县梨树花蕾危害日趋严重。据我们１９８９年以来几年的观察，该虫主要危害梨树花序中的边花，平均每花序花朵受害率５８．２％，花序受害率１００％。受害的花朵不能完全开放，巳雄蕊被梨花象幼虫蛀食，造成落花，严重影... Harm of pear flower buds on pear buds and prevention and control In recent years, pear flower buds on my pear tree buds increasingly serious harm. According to the observations made in the past few years since 1989, the pest mainly harmed the side flowers in the inflorescences of pear, with an average of 58.2% for each inflorescence and 100% for inflorescences. Victims of the flowers can not be completely open, had been stamen pear eater eating larvae, resulting in falling flowers, a serious shadow ...