Control of Acanthoscelides obtectus Say (Coleoptera: Bruchidae) in Phaseolus vulgaris L. seed stored on small farms. I. Evaluation of damage.
Baier, A.H. and Webster, B. D.
Journal of Stored Products Research. Volume 28, Number 4, Oct 1992. Pages 289-293.
1992
บทคัดย่อ
Farm experiments were carried out in Darien (Valle de Cauca), Colombia, South America on stored beans (Phaseolus vulgaris L.) to evaluate the effectiveness of post-harvest treatments designed for the control of Acanthoscelides obtectus Say and adoptability by small farmers. Three treatments effectively reduced A. obtectus damage below the economic threshold (4% damaged grains) determined in this study. Vegetable oil (5 ml/kg) reduced emergence and prevented reproduction of bruchids for 8 months after harvest. Kitchen ash (20% by weight) controlled bruchid reproduction throughout the 39-week storage period. Black pepper controlled reproduction under heavy artificial bruchid infestation. The potential for small-farmer adoption of these and less successful treatments is evaluated.