BELLOTTI, A. and GUERRERO, J. M. (1977) “VARIETAL RESISTANCE IN YUCCA AGAINST MITES Trtranychus urticae and Mononychellus tanajoa”, Revista Colombiana de Entomología, 3(3-4), pp. 87–91. doi: 10.25100/socolen.v3i3-4.10396.