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1.苹果蠹蛾普遍分布于新疆维吾尔自治区各地,历年来受害最重的为苹果、沙果及香梨等。伊犁则为自治区内苹果的主要产地,为此特于1957—1958年在该地作了较全面的观察,该虫一年可发生两个完整世代,和部分第三代,以老熟幼虫越冬。第一代幼虫有滞育现象,滞育率为51.5％。 2.两年来越冬世代及第一代成虫羽化的高峰,第一和第二代产卵的高峰,及第一和第二代幼虫蛀果的高峰,基本上都是一致的。两年中2代成虫羽化高峰相距48—54天,2代产卵高峰相距46—49天,2代幼虫蛀果高峰相距45—46天,三者说明完成一代,大致需时45—54天。 3.两年来观察越冬代及第一代成虫产卵前期之平均,分别为3.6—4.5天,及3.4—6.1天。各代最高产卵量是84—125—141粒,平均32.6—43粒。越冬代及第一代成虫寿命之平均,分别为6.8—10.6天。及7.6—9.1天。寿命之增长与其补充营养有关。雌虫寿命均较雄者为长。雌雄性比例为1:1。 4.成虫在不同品种上产卵的情况。表现有所不同。分析1957年在早、中、晚3品种上 所查得的第一代卵(564粒),各占21.9％、259.9％及52.1％。另外检查不同品种之蛀果率,亦发现同样现象。1957年第一代幼虫对早、中、晚熟3品种(每一品种各200枚)的累进蛀果率分别为35％、41.5％及55％;至第二代时中熟及晚熟更发展至62.5％?
1. Cydia pomonella widely distributed in Xinjiang Uygur Autonomous Region throughout the years, the most affected victims of apples, sand and pear and so on. Ili is the main producing area of apple in the autonomous region, for which we made a more comprehensive observation from 1957 to 1958. The insects can occur two complete generations a year, and some third generation to overwinter with mature larvae . The first generation of larvae have diapause, diapause rate of 51.5%. 2. The peaks of the overwintering generations and the first generation adult eclosion occurred in two years. The peak of the first and the second generation oviposition and the peak of the first and the second generation larvae were basically the same. Two generations of adult emergence peak 48-54 days apart, the second generation spawning peak 46-49 days apart, 2nd generation larvae mulberry fruit peak 45-46 days apart, the three shows the completion of a generation, takes about 45-54 days . 3. Over the past two years, the average pre-oviposition period of overwintering and first generation adults were observed, ranging from 3.6 to 4.5 days and from 3.4 to 6.1 days. The maximum fecundity in each generation was 84-125-141 grains, with an average of 32.6-43 grains. Overwintering generation and first-generation adult average life expectancy, respectively, 6.8-10.6 days. And 7.6-9.1 days. Life expectancy and its nutritional supplements. Females live longer than males. Male to female ratio of 1: 1. 4 adults in different varieties of spawning situation. Performance is different. The first generation of eggs (564) detected in early, middle and late three varieties in 1957 were analyzed, accounting for 21.9%, 259.9% and 52.1% respectively. In addition to check the fruit varieties of different rates, also found the same phenomenon. The first-generation larvae in 1957 had 35%, 41.5% and 55% progressive decay rates for the early, middle and late-maturing varieties 3 (200 for each variety) 62.5%?