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１９９８年和１９９９年,中华梨木虱在新疆焉耆垦区发生猖獗,为害严重,发生面积达６３２．５ｈｍ２,造成直接经济损失１６３．６万元。这两年,我们加强观察,基本掌握了梨木虱在我地的发生规律,并通过多种防治实践,摸索出一套行之有效的综合防治技术措施,取得了良好的经济效益和
In 1998 and 1999, P. pearlitas was rampant in Yanqi Reclamation Area in Xinjiang, causing serious damage, with an area of 632.5hm2, causing a direct economic loss of 1.366 million yuan. In the past two years, we have strengthened our observation and basically mastered the law of occurrence of pear psylla in our country. Through a variety of prevention and control practices, we have worked out an effective set of comprehensive prevention and control measures and achieved good economic benefits.