作为潜在的甘蔗害虫,1934年巴西首次记录了一种甘蔗害虫(鞘翅目:蜜蛾科)

IF 2.6 3区 农林科学 Q1 Agricultural and Biological Sciences
Gilmar V Coutinho, E. S. Gomes, C. J. Ávila, I. F. D. Silva, E. N. Costa, M. Cherman
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引用次数: 1

摘要

摘要:在巴西首次发现了一种名为Plectris alienaChapin的白色蛴螬,这种蛴螬会对北美和澳大利亚的多种作物造成严重危害。2012年和2013年,在南马托格罗索州的甘蔗作物中,分别用灯诱法在土壤沟槽中取样,记录了异色瓢虫的幼虫和成虫。测定了1、2、3龄幼虫的根耗量。种是单伏的;各样地成虫以8月居多,3龄幼虫密度高峰在4月。在深度达60 cm和80 cm的土壤剖面中,分别观察到蝇蛹和成虫。2龄和3龄寄生蜂幼虫吞食甘蔗主次根,危害严重。三龄幼虫消耗916 mg的根系新鲜物质,占甘蔗根系的72%。这些结果有助于进一步了解其在土壤中的幼虫动态,并为害虫综合治理提供支持。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
First record of Plectris aliena Chapin, 1934 (Coleoptera: Melolonthidae) as a potential sugarcane pest in Brazil
ABSTRACT: Plectris alienaChapin, 1934, a white grub that promotes serious damage to a variety of crops in North America and Australia, has been reported for the first time in Brazil. Larvae and adults of P. aliena were recorded in sugarcane crops in the state of Mato Grosso do Sul, sampled by trenches in the soil with light traps, respectively, during 2012 and 2013. Root consumption was also determined for the first, second and third instar larvae. The species is univoltine; adults were found mainly in Aug and the peak of third instar larval density was in Apr in all fields sampled. Pupae and adults of P. aliena were observed in the soil profile at depths of up to 60 and 80 cm, respectively. Larvae of P. aliena of the second and third instar consumed the primary and secondary roots of sugarcane, causing serious damage. Third instar larvae consumed 916 mg of root fresh matter, representing 72 % of the sugarcane root system. These results assist in furthering the understanding of its larval dynamics in the soil and provide support for Integrated Pest Management.
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来源期刊
Scientia Agricola
Scientia Agricola 农林科学-农业综合
CiteScore
5.10
自引率
3.80%
发文量
78
审稿时长
18-36 weeks
期刊介绍: Scientia Agricola is a journal of the University of São Paulo edited at the Luiz de Queiroz campus in Piracicaba, a city in São Paulo state, southeastern Brazil. Scientia Agricola publishes original articles which contribute to the advancement of the agricultural, environmental and biological sciences.
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