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10.25100/socolen.v15i2.10184
Submitted: 26-06-2020
Published: 15-07-1989

A METHODOLOGY FOR THE READING OF YELLOW TRAPS USED IN THE EVALUATION OF WHITE FLY IN A COMMERCIAL TOMATO CULTIVATION

Universidad Nacional de Colombia, Sede Bogotá
Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía

How to Cite

1.
ESPAÑOL JA, CORREDOR D. A METHODOLOGY FOR THE READING OF YELLOW TRAPS USED IN THE EVALUATION OF WHITE FLY IN A COMMERCIAL TOMATO CULTIVATION. Rev. Colomb. Entomol. [Internet]. 1989 Jul. 15 [cited 2026 Oct. 25];15(2):36-42. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/10184
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Abstract

Population dynamics of the green­house whitefly Trialeurodes vapora­riorum (Westwood) was studied in a tomato crop by using sticky yellow traps. The plastic pipe used as a trap was 0.1 m in diameter and 1.5 m high. The number of adult whiteflies was coun­ted by square centimeter and the traps were divided in higher, medium, and lower vertical sections of 0.45 m each. These sections were subdivided into nine horizontal strips of 0.05 m wide each. A good estimate of the population was obtained by counting the whiteflies on four of the nine horizontal stripes for a vertical section. According to the age of the tomato crop, the lower vertical section of the trap has to be sampled from day 1 to 30, the medium section from day 31 to 50, and the higher sec­tion of the trap from day 51 to 112.

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How to Cite

1.
ESPAÑOL JA, CORREDOR D. A METHODOLOGY FOR THE READING OF YELLOW TRAPS USED IN THE EVALUATION OF WHITE FLY IN A COMMERCIAL TOMATO CULTIVATION. Rev. Colomb. Entomol. [Internet]. 1989 Jul. 15 [cited 2026 Oct. 25];15(2):36-42. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/10184
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