In the American continent, the sugarcane borer Diatraea saccharalis (F.) is the main pest in sugarcane producing areas. The objective of this study was to assess the effect of crop residue management on damage by D. saccharalis, its egg parasitoids and the ants associated with sugarcane. The study was carried out during 2011–2012, 2012–2013 and 2013–2014 crop cycles, in three commercial fields located in different regions of Tucumán state, Argentina. Two types of crop residue management (= treatments) were compared: conservation of trash at the soil surface (CT) and trash burning (TB). In ‘trash conservation’ treatment, crop residue was allowed to remain over the soil surface during the whole sugarcane growing season, while the second treatment consisted of complete burning of trash blanket approximately 2 weeks after harvest. The injury level was measured by recording the number of stalks bored and internodes bored. Parasitism was estimated by counting the total number of eggs and number of black eggs (which indicates the occurrence of egg parasitoids). Ants (Formicidae) richness was calculated by two estimators; abundance-based coverage estimator and incidence-based coverage estimator, using the non-parametric richness estimators: Chao 2 and Jackknife. Finally, the indicator value was estimated through the measurement of specificity and fidelity. In all the parameters studied no significant difference was found between TB and CT treatments.

中文翻译：

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作物残茬管理对荠菜（鳞翅目：蟹科）、其卵寄生蜂和与甘蔗有关的蚂蚁危害的影响

在美洲大陆，甘蔗蛀虫糖葫芦(F.)是甘蔗产区的主要害虫。本研究的目的是评估作物残留管理对损害的影响D. saccharalis，它的卵寄生蜂和与甘蔗有关的蚂蚁。该研究于 2011-2012 年、2012-2013 年和 2013-2014 年作物周期期间在阿根廷图库曼州不同地区的三个商业领域进行。比较了两种类型的作物残茬管理（= 处理）：土壤表面的垃圾保护 (CT) 和垃圾焚烧 (TB)。在“垃圾保护”处理中，允许作物残留物在整个甘蔗生长季节留在土壤表面，而第二次处理包括在收获后大约 2 周完全燃烧垃圾毯。通过记录被钻孔的茎和被钻孔的节间的数量来测量损伤程度。通过计算卵的总数和黑卵的数量（这表明卵寄生蜂的发生）来估计寄生情况。蚂蚁（蚁科）的丰富度由两个估计器计算；基于丰度的覆盖率估计器和基于发生率的覆盖率估计器，使用非参数丰富度估计器：Chao 2 和 Jackknife。最后，通过对特异性和保真度的测量来估计指标值。在所有研究的参数中，TB 和 CT 治疗之间没有发现显着差异。