کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4513659 1624865 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Toxicity of foliage extracts of Tithonia diversifolia (Asteraceae) on Atta cephalotes (Hymenoptera: Myrmicinae) workers
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Toxicity of foliage extracts of Tithonia diversifolia (Asteraceae) on Atta cephalotes (Hymenoptera: Myrmicinae) workers
چکیده انگلیسی

Leaf-cutting ants (Formicidae: Myrmicinae) have been considered herbivorous generalists; however, some plant species escape their attack because of the presence of secondary metabolites. The main objective of this study was to determine the insecticide effect of foliage extracts of Tithonia diversifolia on Atta cephalotes workers (Hymenoptera: Myrmicinae) and define the potential application ways and concentrations. Extracts were obtained from fresh and dry T. diversifolia foliage, using ethanol as solvent. The principal metabolic compounds were identified and the extracts in three concentrations (0.5 ml/l, 1.5 ml/l, and 3 ml/l) were applied to the ants in two manners: ingestion and contact. Results showed that crude extract of T. diversifolia was toxic to the ants in all concentrations and methods tested; however, dry extracts applied for contact at 1.5-ml/l concentration produced the most efficient toxic effect to A. cephalotes workers. The study contributes to identifying an environmental sound control strategy for the leaf-cutting ant, A. cephalotes.


► The Atta cephalotes ant is a pest without an effective control method.
► The Tithonia diversifolia plant presents secondary metabolites that affect the ants.
► T. diversifolia extracts display insecticide effects against A. cephalotes.
► Plant extracts are promising for A. cephalotes control.
► Application by contact of the dry extracts causes the highest ant mortalities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 44, January 2013, Pages 391–395
نویسندگان
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