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井上蛀果斑螟是云南石榴上的一种主要蛀果害虫.为明确石榴不同品种对该虫生长发育和繁殖的影响,在温度(25±1)℃、光周期15 L∶9 D、相对湿度(70±10)%条件下,系统观察了井上蛀果斑螟在甜绿籽、厚皮甜沙籽、甜光颜、酸绿籽和酸沙籽5个品种上的发育历期、存活率和产卵量等生物学特性,并组建了其实验种群生命表.结果表明:井上蛀果斑螟在5个石榴品种上的卵期、幼虫期、蛹期、雄成虫寿命、全世代历期及卵孵化率均无显著差异;预蛹期、雌成虫寿命、幼虫存活率、化蛹率、羽化率、总成活率、单雌产卵量及雌雄蛹质量存在显著差异,除幼虫存活率外,均以酸绿籽种群较高,厚皮甜沙籽种群次之,二者间差异不显著.生命表参数表明,净增殖率、内禀增长率和周限增长率均为酸绿籽种群显著高于甜绿籽、甜光颜和酸沙籽种群,但与厚皮甜沙籽种群差异不显著;平均世代周期各品种间无显著差异;种群加倍时间为酸绿籽种群显著小于其余4个品种.5个石榴品种中,酸绿籽和厚皮甜沙籽较适宜井上蛀果斑螟的生长发育和繁殖.
In order to clarify the effects of different pomegranate cultivars on the growth and reproduction of the pomegranate, the moth borer was isolated from pomegranate in Yunnan at a temperature of 25 ± 1 ℃ and photoperiod of 15 L: 9 D, Under the condition of humidity (70 ± 10)%, the developmental durations of sweetpotato borer, Phyllostachys pubescens, on sweetpotato, sweetpotato, sweetpotato, Rate and fecundity and other biological characteristics, and set up their experimental population life table.The results showed that: Oncomelania borer in five pomegranate varieties on the egg stage, larval stage, pupal stage, male adult life, the whole generation There was no significant difference in hatching rate and egg hatching rate between pre-pupal stage, female adult longevity, larval survival rate, pupation rate, emergence rate, total survival rate, , The population of sour green seeds was higher than that of sweet-scented seedlings, and there was no significant difference between the two groups.The life table parameters showed that the net growth rate, intrinsic rate of increase and perimeter growth rate were all sour green seeds The population was significantly higher than that of sweet green seed, sweet light color and sour seed population, but not significantly different from the sweet sand seed population. The average There were no significant differences among the cultivars in each generation, and the population doubling time was significantly less than that in the other four cultivars. The growth and development of the green borer, Breeding.