Spores of Beauveria bassiana and Trichoderma lignorum as a bioinsecticide for the control of Atta cephalotes
| Autor: | Ginna Rodriguez Roman, Marney Pascoli Cereda, Fabián Felipe Fernández Daza, Ivan Andres Gonzalez Vargas, Heiber Cardenas Heano, Raúl Cuervo Mulet, Marino Valencia Rodriguez |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Universities Biological pest control Beauveria bassiana Bassiana Cephalotes Colombia 01 natural sciences 03 medical and health sciences Nest Biological risk Animals Beauveria Pest Control Biological Symbiosis lcsh:QH301-705.5 Trichoderma biology Ants Field validation Atta cephalotes Spores Fungal biology.organism_classification Spore Bioinsecticide Horticulture 030104 developmental biology Entomopathogenic fungi lcsh:Biology (General) Biological Control Agents Biological control Leafcutter ant 010606 plant biology & botany Research Article |
| Zdroj: | Biological Research, Volume: 52, Article number: 51, Published: 04 OCT 2019 Biological Research v.52 2019 SciELO Chile CONICYT Chile instacron:CONICYT Biological Research Biological Research, Vol 52, Iss 1, Pp 1-8 (2019) |
| Popis: | Background The leafcutter ant (Atta cephalotes) is associated with losses in the agricultural sector, due to its defoliating activity; for its control, biological, mechanical and chemical methods have been developed, the latter associated with adverse effects on human and environmental health. This research validated in the field for the control of the leafcutter ant (A. cephalotes) using a mixture of Beauveria bassiana and Trichoderma lignorum spores. Methods The effectiveness from the combination of spores of B. bassiana and T. lignorum with an initial concentration of 2 × 109 spores/ml, in the following proportions of B. bassiana and T. lignorum, A (1:1), of each fungus. It was evaluated within the university campus, comparing it with two commercial formulations, Mycotrol (B. bassiana) and Mycobac (T. lignorum). Additionally, this formulation was evaluated in 49 nests distributed 16 in 14 locations in Colombia. The formulation application was carried out by direct application, using a pump at a speed of 10 ml/m2. The effectiveness was estimated from the reduction of the flow of ants, evaluating the statistically significant differences using the ANOVA and Tukey-test. Results Effective control of 90% of the nests was observed in the field phase in 60 days, except in nests with areas > 50 m2 that were located in regions with high rainfall (annual average precipitation above 7000 mm), such as Buenaventura. Conclusions In this work, it was demonstrated that the combination of B. bassiana and T. lignorum spores represent a viable alternative for the control of the leafcutter ant, in which the effectiveness is related to several factors, including the size of the nest and the rainfall in the area. |
| Databáze: | OpenAIRE |
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