柿蒂虫（Kakivoria flavofascia Nagano）防治技术研究

在研究了柿蒂虫生物学特性的基础上，研究了柿蒂虫的发生世代、消长规律、生活年史及测报与防治技术。柿蒂虫在河北省每年发生２代，以老熟幼虫在君迁子（Ｄｉｏｓｐｅｌｏｓ—ｌｏｔｕｓ）果实、君迁子树、柿树（Ｄｉｏｓｐｅｌｏｓ—ｋａｋｉ）皮缝中越冬。平原区和浅山区越冬代成虫在５月中旬出现，盛期在５月２０～２３日，深山区发生约迟１５ｄ，当年一代成虫开始于７月中旬，盛期在７月．底。通过预测其发生期，适时喷药，加以人工防治相配合，可取得很好的防治效果。

Study on the Technology of Controlling Persimmon Fruit Worm

Hebei province is one of the most important persimmon- yielding province in China. But in recent years, as a result of the outbreak ofpersimmon fruit worm, even some areas have no harvest. On the basis of study on the biology and living habits of them, a set of valuable technology to control persimmon fruit worm was concluded. Moreover, its living generations, outbreaking and diminishing, life circle, forecaste and technology of control were studied. The results showed that two generations of perismmon fruit worm appeared every year, hibernating in the fruit and bark of datepulm persimmon trees or bark of persimmon trees. It happens in the middle of May on flatlands and half-flatlands with a peak in the period from May 20to May 23. But the samething happened about half a month later in remote mountains. The first generation of adults happens in the middle of July and becomes plentiful at the end of that month. According to our forecasted data, pesticide sprayed on time with other managements could bring some good effects.