Biological parameter of Tetranychus urticae Koch (Acari: Tetranychidae) fed on two strawberry cultivars in Ecuador

Authors

  • Pilar Pazmiño Universidad Técnica de Ambato. Facultad de Ciencias Agropecuarias. Carretera Cevallos-Quero, Código Postal 180350. Cevallos, Provincia de Tungurahua, Ecuador.
  • Gabriela Lema Universidad Técnica de Ambato. Facultad de Ciencias Agropecuarias. Carretera Cevallos-Quero, Código Postal 180350. Cevallos, Provincia de Tungurahua, Ecuador.
  • David Mendoza Universidad Técnica de Ambato. Facultad de Ciencias Agropecuarias. Carretera Cevallos-Quero, Código Postal 180350. Cevallos, Provincia de Tungurahua, Ecuador.
  • Giovanny Velástegui Universidad Técnica de Ambato. Facultad de Ciencias Agropecuarias. Carretera Cevallos-Quero, Código Postal 180350. Cevallos, Provincia de Tungurahua, Ecuador.
  • Carlos Vásquez Universidad Técnica de Ambato. Facultad de Ciencias Agropecuarias. Carretera Cevallos-Quero, Código Postal 180350. Cevallos, Provincia de Tungurahua, Ecuador.

Keywords:

Two spotted spider mite, life cycle, variety susceptibility

Abstract

The two-spotted spider mite, Tetranychus urticae Koch, is considered the main pest to strawberry crop worldwide. Our objective was to study the life history, fecundity and longevity parameters of the on detached leaves of two strawberry cultivars (Festival and San Andreas) under laboratory conditions. Total developmental time (egg-adult) showed to be shorter (14.0 %) when mites were reared on ‘Festival’ than on ‘San Andreas’, although higher sex ratio was observed on the latter. Similarly, longevity, oviposition and post-oviposition periods in T. urticae females were significantly higher on ‘San Andreas’, being 28.9, 40.0 and 48.7 % higher as compared to ‘Festival’. Conversely, no cultivar effect on daily oviposition rate or total number of eggs/female was detected. Based on the biological parameters of T. urticae here in, ‘San Andreas’ showed greater susceptibility to damages inflicted by this mite.

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Published

2020-05-01

Issue

Vol. 30 No. 3 (2018): September-December

Section

Nota Técnica

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How to Cite

Biological parameter of Tetranychus urticae Koch (Acari: Tetranychidae) fed on two strawberry cultivars in Ecuador. (2020). Bioagro, 30(3), 229-234. https://revistas2.uclave.org/index.php/bioagro/article/view/2722