人工摘梢防治梨木虱梨木虱是目前梨树上的主要害虫之一。在砀山梨区年发生５～６代，其中以２～３代若虫为害最重，常造成落叶。对梨木虱的防治一般采用药剂防治，用药遍数１年多达９次以上。人工摘梢是防治梨木虱比较好的方法，它见效快，效果好，不产生任何残留，不受其... Pear picking artificial lice Pear lice Pear lice is currently one of the major pests. Occurred in the pear mountain area 5 to 6 generations, of which 2 to 3 generations of nymphs most seriously damaged, often resulting in deciduous. Prevention and treatment of pear psylla commonly used agents to prevent and treat, the number of times over 1 year up to 9 times. Artificial pick is a better way to prevent and control pear lice, it is quick, good effect, does not produce any residue, not ...