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首页> 外文期刊>Journal of Stored Products Research >Survival and reproduction of lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) on flora associated with native habitats in Kansas.
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Survival and reproduction of lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) on flora associated with native habitats in Kansas.

机译：较小的bore虫（Rhyzopertha dominica（F。）（鞘翅目：Bostrichidae））在堪萨斯州原生栖息地相关植物上的生存和繁殖。

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Capture of Rhyzopertha dominica in pheromone-baited traps located many kilometers away from grain storage suggests that this species may be exploiting non-grain food sources. To investigate the potential for survival of this species on alternative hosts in the absence of grain, we conducted no-choice feeding assays with twigs and seeds of trees, and seeds of grasses, forbs, and shrubs, commonly encountered on Kansas prairie landscapes where R. dominica has been captured. In addition, R. dominica development and progeny production were assessed on seeds that adults were able to survive on for at least two weeks. Adult survival was poor on grass and forb seeds, although 13.4% of individuals survived on Elymus canadensis, Canada wildrye, seeds after two weeks, compared with 80.3% on Triticum aestivum, wheat, and 0.0% survival in the absence of food. Beetles readily tunneled into twigs from a wide range of tree species, but survival was generally low. A few individuals survived up to four weeks on Gleditsia triacanthos, honey locust. In contrast, bioassays showed that R. dominica could survive and reproduce on damaged seeds (acorns) of six species of oak, but not on undamaged seeds. For example, survival was 95.8% on damaged Quercus muehlenbergii, chinquapin oak. A survey of acorns at the original field collection site showed that the majority of the acorns on the ground had been cracked or bored into by insects and small mammals. Furthermore, we recovered three R. dominica adults from acorns collected in the field and held in sealed containers in the laboratory. These findings suggest that R. dominica populations in Kansas can persist on wild acorns when grain is not available.
机译：在距离粮食储存有数公里的信息素诱饵诱捕装置中捕获了Rhyzopertha dominica，这表明该物种可能正在利用非粮食食物来源。为了研究该物种在没有谷物的情况下在其他寄主上存活的潜力，我们使用树枝和树木的种子，草种子，小草和灌木的种子（在堪萨斯州的大草原上经常遇到这种情况）进行了非选择喂养试验。多米尼加被抓获。此外，还评估了成虫能够存活至少两周的种子上的多米尼加罗非鱼的发育和后代产生。在草和福布斯种子上，成虫的存活率很低，尽管在两周后有13.4％的个体在加拿大披碱草，加拿大野黑麦，种子上存活，而在普通小麦，小麦中只有80.3％的存活率，而在没有食物的情况下存活率为0.0％。甲虫很容易从各种各样的树种挖入树枝，但是存活率通常很低。少数人在蜂蜜刺槐Gleditsia triacanthos上存活了长达四个星期。相反，生物测定表明，多米尼加罗非鱼可以在六种橡木的受损种子（橡子）上存活并繁殖，但在未受损的种子上则不能繁殖。例如，受损的栎木，栗树栎的存活率为95.8％。对原始田间采集地点的橡子进行的一项调查显示，地面上的大多数橡子已被昆虫和小型哺乳动物开裂或钻孔。此外，我们从田间收集的橡子中回收了三只多米尼加罗非鱼成虫，并放在实验室的密封容器中。这些发现表明，在没有谷物的情况下，堪萨斯州的多米尼加罗非鱼种群可以在野生橡子上生存。

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