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March 10, 2026Journal of Applied EntomologyOpen Access

Drought Stress Promotes Aphis gossypii Growth but Decreases Host Attractiveness in Melon

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Authors

GCG. Clemente‐OrtaMGMarcio Pinotti GuiraoConsejo Superior de Investigaciones CientíficasPMP. Madolell

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Implication

This research investigates drought effects on aphid fitness and host plant attractiveness in melons, indicating preference for well-watered conditions.

Key Points

  • The study aims to explore how drought stress influences Aphis gossypii growth and melon plant attractiveness.
  • Compared aphid fitness and preference under water-deficit (WD) and well-watered (WW) regimes.
  • Conducted antibiosis assays to assess pre-reproductive period and generation time.
  • Performed alighting and free-choice settlement assays to evaluate aphid preferences.
  • Used olfactometry to analyze aphid responses to plant volatiles.
  • Aphids had longer pre-reproductive and generation times under well-watered conditions.
  • Higher intrinsic rates and relative growth rates were observed under water-deficit conditions.
  • Aphids preferentially settled on well-watered plants over water-stressed plants.
  • Visual cues primarily drove aphid alighting behavior, with negligible olfactory response.

Cite This Study

Clemente‐Orta et al. (2026) studied this question.

synapsesocial.com/papers/69af957570916d39fea4d1a1https://doi.org/10.1111/jen.70076
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