Relative Tolerance of Three Morphotypes of the Anastrepha fraterculus Complex (Diptera: Tephritidae) to Cold Phytosanitary Treatment
Open Access
- 12 March 2020
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 113 (3), 1176-1182
- https://doi.org/10.1093/jee/toaa027
Abstract
The Anastrepha fraterculus (Wiedemann) complex is currently comprised of at least eight morphotypes, including several that are likely to be described as new species. It is critical to evaluate whether the morphotypes differ in tolerance to phytosanitary treatments. Temperatures from 0 to 3°C are used as a phytosanitary treatment for some commodities exported from the region and at risk of infestation by the A. fraterculus complex. Description of A. fraterculus morphotypes as new species could result in the annulation of phytosanitary treatment schedules for the new species. This study compared the relative cold tolerance of five populations from three morphotypes of the A. fraterculus complex: Andean, Peruvian, and Brazilian-1. Both a laboratory and wild strain of the Brazilian-1 morphotype were studied. Differences in mortality of third instars of the five A. fraterculus populations reared on nectarines were observed only with short treatment durations at temperatures ranging from 1.38 ± 0.04°C to 1.51 ± 0.08°C (mean ± SEM). Estimated times to achieve the LT99.99682 (probit 9) showed that Brazilian-1 wild, Brazilian-1 laboratory, and Cusco population were the most cold tolerant, followed by Andean and Peruvian, the least cold tolerant morphotype (i.e., Brazilian-1 wild = Brazilian-1 laboratory = Cusco population > Andean > Peruvian). These findings suggest that the current cold treatment schedules of 15 d at ≤ 1.11°C and 17 d at ≤ 1.67°C can be applied as cold treatments to any potential new species that may arise from the A. fraterculus complex.Keywords
This publication has 33 references indexed in Scilit:
- Bias in parametric estimation: reduction and useful side‐effectsWIREs Computational Statistics, 2014
- Evolution of pre‐zygotic and post‐zygotic barriers to gene flow among three cryptic species within the Anastrepha fraterculus complexEntomologia Experimentalis et Applicata, 2013
- Cryptic Species of the Anastrepha fraterculus Complex (Diptera: Tephritidae): A Multivariate Approach for the Recognition of South American MorphotypesAnnals of the Entomological Society of America, 2012
- RESPONSE TO SELECTION ON COLD TOLERANCE IS CONSTRAINED BY INBREEDINGEvolution, 2012
- A generic algorithm for reducing bias in parametric estimationElectronic Journal of Statistics, 2010
- Incipient speciation revealed in Anastrepha fraterculus (Diptera; Tephritidae) by studies on mating compatibility, sex pheromones, hybridization, and cytologyBiological Journal of the Linnean Society, 2009
- Simultaneous Inference in General Parametric ModelsBiometrical Journal, 2008
- Morphometric analysis of Mexican and South American populations of the Anastrepha fraterculus complex (Diptera: Tephritidae) and recognition of a distinct Mexican morphotypeBulletin of Entomological Research, 2004
- Rose, an Eye Color Mutation in a Species of the Anastrepha fraterculus Complex (Diptera: Tephritidae)Annals of the Entomological Society of America, 2001
- Bias reduction of maximum likelihood estimatesBiometrika, 1993