Sequential sampling plan for Ceratitis capitata (Diptera: Tephritidae) in guava orchards.

Area of Science:

• Agricultural Entomology
• Pest Management
• Quantitative Ecology

Background:

• The Mediterranean fruit fly (Ceratitis capitata) poses a significant threat to guava production.
• Effective pest management relies on accurate and timely population assessment.
• Existing sampling methods may not be efficient for rapid decision-making in commercial orchards.

Purpose of the Study:

• To develop and validate a sequential sampling plan for Ceratitis capitata in commercial guava orchards.
• To establish clear thresholds for security and control actions based on trap counts.
• To provide a tool for efficient and reliable pest monitoring in guava farming.

Main Methods:

• Random installation of 90 McPhail traps across three commercial guava orchards.
• Data collection over a 23-week period.
• Application of the sequential probability ratio test (SPRT) for data analysis.

Main Results:

• Defined security level at an average of 0.3 C. capitata per trap.
• Defined control action level at an average of 0.7 C. capitata per trap.
• Established the average sample size at 0.40 adults of C. capitata per McPhail trap.

Conclusions:

• The developed sequential sampling plan is novel and unprecedented for C. capitata in guava.
• This plan facilitates rapid and reliable decision-making for pest control.
• Implementation can optimize resource allocation and improve the efficacy of C. capitata management strategies.