The effect of insecticides, species diversity and nitrogen fertilizer on insect infestation and yield of cotton [microform]. - Villamayor, Federico Garcia 1949- (Quezon City Photoduplication Service, University of the Philippines Library, 1977)
Thesis (M.S.)--University of the Philippines, Los Banos.
Microfilmed with 18 other titles.
Originally published in [College, Laguna] 1975.
Keywords: Cotton -- Diseases and pests; Insecticides; Nitrogen fertilizers