Actividad biológica de Lonchocarpus guaricensis Pittier en el control de larvas de Tuta absoluta (Meyrick)
Biological activity of Lonchocarpus guaricensis Pittier was evaluated using two doses of Tecnona® in the control of larvae of Tuta absoluta (Meyrick), Azapa Valley, Chile, by a spray on potted tomato plants cv. Naomi, randomly placed in a greenhouse within a nursery. Weeks prior to spraying, t...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Autores principales: | , , , |
| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=5011 |
| Sumario: | Biological activity of Lonchocarpus
guaricensis Pittier was evaluated using two
doses of Tecnona® in the control of larvae of
Tuta absoluta (Meyrick), Azapa Valley, Chile,
by a spray on potted tomato plants cv. Naomi,
randomly placed in a greenhouse within a
nursery. Weeks prior to spraying, the pots were
artificially infested with adults of phytophagous
to obtain larvae in the leaflets. The evaluated
treatments were the following ones: T1 (0.21 g
AI of L. guaricensis·L-1), T2 (0.43 g AI of
L. guaricensis·L-1), T3 (positive control based
on spinosad 0.048 g AI·L-1) and T0 (negative
control based on well water). According to
the cumulative mortality percentage of larvae
counted at 24, 48, 120 hours and 9th day post
application, there was no statistical differences
between T0 and T1 treatments, in turn, T2 reaches
an average of 53.05% mortality not differing
from T3 that achieves 73.9%. We conclude
that the experimental dose of L. guaricensis
0.43 g AI∙L- 1 can be an attractive alternative
for use in Integrated Pest Management of the
tomato crop in the Azapa Valley. |
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