-- yup, that's Mg defc.,... sorry, no mucho Espanol help from me,.... tell you amigo that he needs a Ca-mg product, or they can use epsom salts (MgSO4) to treat a few times, 1tsp/L soil, and/or 1/2 that for foliar spray, plus wetting agent, or little castille soap to make it cover and stick better, instead of beading up,.. spray tops
and bottoms of leaves!