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Life table of Orius insidiosus (Hemiptera: Anthocoridae) feeding on Sitotroga cerealella (Lepidoptera: Gelechiidae) eggs

Avellaneda Nieto, Jhon Alexander and Cantor Rincón, Fernando and Rodriguez Caicedo, Daniel (2016) Life table of Orius insidiosus (Hemiptera: Anthocoridae) feeding on Sitotroga cerealella (Lepidoptera: Gelechiidae) eggs. Revista Facultad Nacional de Agronomía, 69 (1). pp. 7773-7782. ISSN 2248-7026

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To use a natural enemy to control an insect pest, it is important to determine the biological parameters of the native populations of the predator. The goal of this study was determinate the biological parameters of O. insidiosus fed on Sitotroga cerealella eggs. A batch of 225 O. insidiosus eggs were laid into bean pods. The bean pods were kept in glass jars, and the eggs and first instar nymphs were counted daily. All nymphs were extracted and individualized in Petri dishes. The presence/absence of exuvie was observed daily as a way to assess the emergence of adults from the nymphal stage. Seventeen adult couples were placed into Petri dishes with a segment of bean pod. The bean pod segments were extracted and replaced daily, counting the number of eggs present on the pods. The life cycle, survival percentage, sex ratio, male/female longevity, pre ovoposition, ovoposition and post ovoposition periods were determined. Finally, fertility life table parameters were estimated. The nymphal development time was 12.0 ± 0.22 days, with 80.47 % ± 3.23 survival, while the total development time was 15.0 ± 0.23 days, with 66.67 % ± 1.90 survival. Of the total adults that emerged, 30.95 % ± 2.38 were females. The female sex ratio was 0.75, and the oviposition period was 0.86 ± 9.21 days with a total fertility of 60.29 ± 7.39 eggs. The data estimated from the fertility life table were: Ro: 28.26, rm: 0.14, T: 24.26, λ: 1.13 and DT: 5.01.

Tipo de documento:Artículo - Article
Palabras clave:biological control, pirate bugs, stock colony, Sabana de Bogotá
Temática:5 Ciencias naturales y matemáticas / Science > 57 Ciencias de la vida; Biología / Life sciences; biology
5 Ciencias naturales y matemáticas / Science > 58 Plantas / Plants
Unidad administrativa:Revistas electrónicas UN > Revista Facultad Nacional de Agronomía Medellín
Código ID:55363
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :19 Dec 2016 15:23
Ultima modificación:23 Junio 2017 20:42
Ultima modificación:23 Junio 2017 20:42
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