Revista Colombiana de Entomología (2004) 30, 37-42

Claudia María Holguín A. and Anthony C. Bellotti (2004)
Efecto de la aplicación de insecticidas químicos en el control de la mosca blanca Aleurotrachelus socialis (Homoptera: Aleyrodidae) en el cultivo de yuca Manihot esculenta Crantz
[Effect of chemical insecticide application for control of the whitefly Aleurotrachelus socialis (Homoptera: Aleyrodidae) in cassava Manihot esculenta Crantz]
Revista Colombiana de Entomología 30 (1), 37-42
Abstract: In recent years the whitefly Aleurotrachelus socialis Bondar has been the most important pest affecting the cassava crop in Colombia. In order to search for different alternatives in an integrated management program, three experiments were conducted under field conditions in Jamundi (Valle del Cauca) in a complete randomized block design, with the cassava variety Reina. In the first trial the foliar application of different insecticides was evaluated. The treatments corresponded to imidacloprid 1, buprofezin, carbosulfan, tiametoxan, diafentiuron, piriproxifen and imidacloprid 2. In the other two experiments we sought to delay appearance of the pest by evaluating different doses, forms an application periods of imidacloprid: drench of the seed at planting and emergence of the first leaf, and stake immersion, reinforced with foliar applications. In all experiments egg, nymph and adult populations were evaluated based on a population scale of 1 to 6. The foliar application with tiametoxan, imidacloprid 1 and 2 presented the lowest population values for adults, eggs and nymphs compared to the control. When imidacloprid was used at planting and immersion or seed drenching, the crop was protected between 45 and 60 days. At the economic level, for farmers with large planting areas the benefits are greatest by using only foliar applications. For small-scale farmers chemical control is only beneficial with one product in foliar form. When used from planting on, the small-scale farmer gained no benefits from any of the treatments.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Spanish)
Database assignments for author(s): Anthony C. Bellotti

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aleurotrachelus socialis	Cassava (Manihot esculenta)	Colombia