查看更多>>摘要：A survey for mosquitoes at 23 sites in the Ontario Shield and Hudson Bay Lowlands of northern Ontario, Canada, in 2011 and 2012 yielded 19 species, including 16 of Aedes, and one each of Anopheles, Coquillettidia, and Culesita. One species, Aedes pullatus (Coquillett) is newly recorded for Ontario. Eleven northern range extensions and one southern range extension are reported.
查看更多>>摘要：The present compilation summarizes the biological control contributions published in the Annual Report of the Entomological Society of Ontario/Proceedings of the Entomological Society of Ontario/Journal of the Entomological Society of Ontario (together, JESO) from 1952-2012 as part of the commemorative activities to celebrate the 150th anniversary of the Entomological Societies of Canada and Ontario.
查看更多>>摘要：This study is the first to monitor the spread of N. marmoratus marmoratus (Nmm) in Canada since its release in North America, thus addressing Corrigan et al.'s (2013) recommendation to assess its establishment in Canada. In 2012 and 2013, several Purple Loosestrife (Lythrum salicaria) populations in eastern Ontario were surveyed. Only the well-established, leaf-feeding Neogalerucella beetles were expected to be found but Nmm was repeatedly discovered as well on Purple Loosestrife flowers from mid-June to late August. Nmm has now been identified at 18 sites in eastern Ontario and quantified in 14 of them. The average density was 0.78(+or-0.55) weevils per stem (n=513 stems), with a range of 0-14 weevils per stem. In populations where Nmm is common, Purple Loosestrife fruit densities were noticeably lower, with higher proportions of aborted seed pods. Flower bud abortion was often seen on the lower half of the inflorescence with many to all of the buds along this section missing. Affected buds that remain on plants each had a single small exit hole. In the 14 sites with Nmm, reductions in reproductive output were measured as the portion (%) of the total lengths of inflorescences bearing aborted flower buds. These reductions averaged 12.6% (+or-10.6%) with a range of 0-34.5% over all sites. When considering only the damaged plants (n=85) within the sites, total reproductive output reductions averaged 53%(+or-26.2%) with a range of 0-100%.
Renkema, J. M.Miller, M.Fraser, H.Legare, J. P....
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查看更多>>摘要：This paper reports the first records of Z. indianus in Canada, with all specimens found in southern Ontario and Quebec. Specimens of Z. indianus were found during surveys for Drosophila suzukii in apple cider vinegar traps in pre- and post-harvest fields of peach, blueberry, raspberry, strawberry, cherry and plums. Morphological descriptions of Z. indianus are given.
查看更多>>摘要：During a routine collection of S. amplexifolius plants for laboratory tests on 25 June 2013, a row of 3 L. lilii eggs was discovered on the underside of a wild S. amplexifolius leaf, collected in Gatineau Park, Quebec, Canada. Surrounding plants were searched for more eggs, though none were discovered, nor was any obvious feeding damage by adults or larvae observed. This is thought to be the first record of L. lilii ovipositing on S. amplexifolius in nature and the first plant species outside the genera Lilium, Fritillaria and Cardocrinium (the known host genera for this beetle) where both oviposition in nature and successful larval development in the laboratory have been observed. This record is also only the second oviposition record for L. lilii in North America on a host plant in nature outside of urban areas where development might also be occasionally possible. Morphological descriptions of L. lilii are given.
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