Dinámica poblacional y fenología del salivazo de los pastos Zulia carbonaria (Lallemand) (Homoptera: Cercopidae) en el valle geográfico del río Cauca, Colombia

We studied the population fluctuation of nymphs, adults, eggs and natural enemies of the spittlebug Zulia carbonaria(Lallemand) (Homoptera: Cercopidae) associated with Brachiaria dictyoneura pastures of the Cauca River Valley, Colombia. Our objective was to describe spittlebug phenology under seasonal conditions of bimodal precipitation (March-May and September-November). Weekly, over two years, populations of spittlebugs and certain natural enemies were quantified using a sweep net (adults) and counts of nymphs in spittle masses. To obtain eggs and study their development, adult females were ...