﹃疙瘩梨﹄的防治技术所谓“疙瘩梨”，就是梨果畸形，果面凹凸不平，果皮无光泽，果肉块状木栓化，果小果硬的梨。这种木栓化的梨难以食用，经济效益不高。“满树疙瘩梨，果农心里急。”为什么梨树会结出“疙瘩梨”呢？主要原因为：１土壤缺硼所致：“梨树难离硼，缺硼... Pigeon pear 防 prevention and control technology The so-called “pimple pear” is the pear fruit deformity, uneven fruit, peel matte, corky lumpy fruit, fruit small hard pear. This cork-pear is difficult to eat, economic efficiency is not high. “Tree full of pears, fruit farmers in a hurry.” Why pear tree will bear “pimple pear” it? The main reason is: 1  due to lack of boron in the soil: "pear difficult boron, boron deficiency ...