The life table parameters of Megalurothrips usitatus (Thysanoptera: Thripidae) on four leguminous crops

Authors

  • Liang-De Tang Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
  • Kai-Li Yan Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
  • Bu-Li Fu Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
  • Jian-Hui Wu College of Natural Resource and Environment, South China Agricultural University, Guangzhou 510642, China
  • Kui Liu Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
  • Yong-Yue Lu Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China College of Natural Resource and Environment, South China Agricultural University, Guangzhou 510642, China

Keywords:

Megalurothrips usitatus, life history, leguminous crops, development, survival rate

Abstract

The bean flower thrips, Megalurothrips usitatus (Thysanoptera: Thripidae), is an important pest of leguminous crops (Fabales: Fabaceae) in south China. In this study, life history parameters of M. usitatus were investigated on 4 leguminous crops: snap bean (Phaseolus vulgaris L.), cowpea (Vigna unguiculata (L.) Walp.), pea (Pisum sativum L.), and lima bean (Phaseolus limensis Macf.). The development times (mean ± SE) from egg to adult on snap bean, cowpea, pea, and lima bean pods were 9.53 ± 0.06, 10.62 ± 0.14, 11.20 ± 0.11 and 11.55 ± 1.13 days, respectively. Survivorship of immatures was high on snap bean (80%) but low on lima bean (48%). The total number of first instars produced was highest on snap bean (sexual reproduction: 112.15 ± 11.98; parthenogenesis: 195.89 ± 19.24), and lowest on lima bean (sexual reproduction: 42.17 ± 2.99; parthenogenesis: 49.50 ± 3.90). Megalurothrips usitatus had the highest intrinsic rate of increase (rm) on snap bean (0.205), followed by cowpea (0.181), pea (0.171), and lima bean (0.125). The results indicate that snap bean was the most suitable host plant for M. usitatus, whereas lima bean was the least suitable.

 

Resumen

Los trips de las flores de frijol, Megalurothrips usitatus (Thysanoptera: Thripidae), son una plaga importante de cultivos leguminosos (Fabales: Fabaceae) en el sur de China. En este estudio, los parámetros de historia de vida de M. usitatus fueron investigados en 4 legumbres: habichuela (Phaseolus vulgaris L.), caupí (Vigna unguiculata (L.) Walp.), arveja (Pisum sativum L.) y frijol lima (Phaseolus limensis Macf.). El tiempo de desarrollo de huevo a adulto en las vainas de habichuela, caupí, arveja y frijol lima fue 9.53 ± 0.06, 10.62 ± 0.14, 11.20 ± 0.11 y 11.55 ± 1.13 días, respectivamente. La sobrevivencia de inmaduros en habichuela fue alta (80%) pero baja en el frijol lima (48%). El número total de larvas del primer estadio producido fue más alto en la habichuela (reproducción bisexual: 112.15 ± 11.98; partenogénesis: 195.89 ± 19.24), mientras que fue el más bajo en frijol lima (reproducción bisexual: 42.17 ± 2.99; partenogénesis: 49.50 ± 3.90). Megalurothrips usitatus tuvo la tasa intrínseca de crecimiento (rm) más alta en habichuela (0.205), seguido por caupí (0.181), arveja (0.171) y el frijol lima (0.125). Los resultados indican que la habichuela fue la planta hospedera más adecuada para M. usitatus, mientras y el frijol lima fue el menos adecuado.

 

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Issue

Vol. 98, No. 2 (June 2015)

Section

Research Papers

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