title: Anti-tick effects of Melinis minutiflora and Andropogon gayanus grasses on plots experimentally infested with Boophilus microplus larvae.
abstract: Our objective in this trial was to investigate the anti-tick effects of molasses grass (Melinis minutiflora) and gamba grass (Andropogon gayanus) against Boophilus microplus, using buffel grass (Cenchrus ciliaris) as a control. During a 3-year-period fieldwork was carried out in the tropical, subhumid climate at Progreso, Municipality of Jiutepec, Morelos, Mexico. Experimental plots were established for three treatments with six replicates under a random factorial design in order to evaluate each of the four seasons. Additional work was developed for two more consecutive autumn seasons to evaluate the anti-tick effects of these grasses. Once the plots were established they were infested with 5000 B. microplus larvae and sampled by dragging flannel cloths. The anti-tick effects were measured by counting the number of larvae recovered from each of the experimental plots. Both grasses, M. minutiflora and A. gayanus, demonstrated anti-tick effects; however, M. minutiflora grass had the greatest anti-tick effects through the seasons studied and in the three consecutive autumns evaluated.
authors.affiliation: Centro Nacional de Investigaciòn Disciplinaria en Parasitologia Veterinaria (CENID-PAVET-INIFAP), AP 206 CIVAC, C.P 62500, Morelos, México. rfdez51@yahoo.com
authors.forename: Manuel
authors.initials: M
authors.lastname: Fernandez-Ruvalcaba
authors.forename: Francisco
authors.initials: F
authors.lastname: Preciado-De-La Torre
authors.forename: Carlos
authors.initials: C
authors.lastname: Cruz-Vazquez
authors.forename: Zeferino
authors.initials: Z
authors.lastname: Garcia-Vazquez
mesh_terms: D000818:Animals; D005260:Female; D026863:Ixodidae / Q000254:growth & development*; D010572:Pest Control, Biological / Q000379:methods*; D006109:Poaceae / Q000469:parasitology*; D012621:Seasons; D014329:Tropical Climate