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首页> 外文会议>Annual Australian Society of Sugar Cane Technologists Conference >INVESTIGATION OF CROP LOSSES DUE TO MOTH BORERS IN INDONESIA
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INVESTIGATION OF CROP LOSSES DUE TO MOTH BORERS IN INDONESIA

机译：印度尼西亚蛾螟引起的作物损失调查

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Through an ACIAR project on pest and disease management in Indonesia, the impact of stemborers Chilo sacchariphagus and C. auricilius and the top borer Scirpophaga excerptalis on stalk yield components was studied in fields at Pesantren Baru Sugar Factory, East Java. The experimental design consisted of randomised plots to compare natural infestation by the borers, biological treatments using the egg parasitoid Trichogramma spp. and a chemical treatment. Damage levels in untreated plots were the highest with an average of 14.5% internodes bored by Chilo spp. and 15.8 % stalks damaged by S. excerptalis. In comparison, the best treatment obtained with insecticides had only 4.6% and 3.8% damage level respectively, followed by plots treated with Trichogramma releases. The untreated plots had lower sucrose yield, higher fibre content and lower cane yield than all treated plots, which represents a loss in cane yield of 45.4 t/ha (-34%). Stalk height and other parameters were also affected, particularly in cane stalks attacked by S. excerptalis. The relationship between damage level and other stalk components was also investigated. Stalk weight, stalk length and sucrose were negatively correlated with stalk damage. Increased fibre content, resulting in less juice, was positively correlated with damage. These results are generally consistent with past studies on stem borers, particularly those on C. sacchariphagus and Eldana saccharina. They also confirm the severe impact of the top borer on crop yield.The high level of threat represented by moth borers to the Australian sugar industry stresses the importance of gathering more data on yield losses and pest management strategies for better preparedness.
机译：通过印度尼西亚的害虫和疾病管理的一个激烈的项目，研究了东爪哇省巴布·巴鲁糖厂的田野中，研究了苯磺酸辣椒糖酸碱和C.Auricilius和C.Auricilius和The Top Borer Scirpophaga摘除术中的茎秆产量组分。实验设计包括随机地块，以比较螟虫的自然侵染，使用蛋寄生蛋白骨质形状SPP的生物处理。和化学处理。未处理地块中的损伤水平最高，平均是辣椒SPP钻孔的14.5％的间。摘要，15.8％的茎秆损坏。相比之下，用杀虫剂获得的最佳处理分别具有4.6％和3.8％的伤害水平，然后用略微地下形照片释放处理的图。未处理的曲线具有较低的蔗糖产率，更高的纤维含量和低于所有处理的图的甘蔗产量，这代表了45.4吨/小时（-34％）的甘蔗产率损失。茎高和其他参数也受到影响，特别是在由S. Excerptalis攻击的蔗茎中。还研究了伤害水平与其他茎秆成分之间的关​​系。茎重，茎长和蔗糖与茎秆损伤负相关。增加的纤维含量，导致汁液较少，与损坏呈正相关。这些结果通常与过去的茎硼酸螟的研究一致，特别是那些C. Sacchariphar和Eldana Saccharina的研究。他们还证实了顶级螟虫对作物产量的严重影响。蛾螟对澳大利亚糖业代表的高水平威胁强调了收集更多数据的重要性，以获得更好的准备措施。

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