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Related Experiment Video

Updated: Mar 1, 2026

Methodology for Developing Life Tables for Sessile Insects in the Field Using the Whitefly, Bemisia tabaci, in Cotton As a Model System
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Feasible sampling plan for Bemisia tabaci control decision-making in watermelon fields.

Carlos Ho Lima1, Renato A Sarmento1, Poliana S Pereira1

  • 1Federal University of Tocantins (UFT), Gurupi, Tocantins, Brazil.

Pest Management Science
|May 26, 2017
PubMed
Summary

A new sampling plan for silverleaf whitefly (Bemisia tabaci) in watermelon fields was developed. This plan offers accurate pest evaluation with low cost and high efficiency for integrated pest management.

Keywords:
Citrullus lanatusdecision-makinsampling techniquesampling unitsilverleaf whitefly

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Area of Science:

  • Agricultural Entomology
  • Pest Management

Background:

  • Silverleaf whitefly (Bemisia tabaci) is a significant pest in global watermelon cultivation.
  • Effective pest sampling is crucial for integrated pest management (IPM) strategies.

Purpose of the Study:

  • To develop a conventional sampling plan for Bemisia tabaci in watermelon.
  • To establish a reliable method for monitoring whitefly populations.

Main Methods:

  • Identified the 6th apical leaf as optimal for adult whitefly sampling.
  • Utilized direct counting as the most effective sampling technique.
  • Applied negative binomial distribution to model pest densities.

Main Results:

  • The sampling plan requires 103 samples per plot, taking 56 minutes.
  • The cost per sample is US$2.22, with a maximum evaluation error of 10%.
  • A common aggregation parameter (Kcommon) was identified for pest densities.

Conclusions:

  • The developed sampling plan is cost-effective, fast, and feasible for farmers.
  • It allows for adequate evaluation of Bemisia tabaci populations with a 10% error margin.
  • Standardized application throughout the crop cycle makes it practical for IPM programs.