| PUBLICATIONS Demayo, C.G. Amelita T. Angeles and Carlos R. Vega 1997. Biology of selected rice pests on an artificial diet. Min. For. 12(2):43-50. Demayo, C.G. Angelita M. Romena and Amelita T. Angeles. 1997. Variability in the biology of the yellow stem borer Scirpophaga incertulas from the Philippines. Min. For. 12(2): 51-64. Demayo, C.G. Amelita T. Angeles and Angelita M. Romena. 1997. Variability in development time and sex ratios of selected local populations of striped stem borer Chilo suppressalis from the Philippines. Min. For. 12(2): 51-64. Demayo, C.G. and Amelita T. Angeles. 1997. Variability in rice stem borer populations and their response to Bacillus thuringiensis Strains and endotoxins and Its Implications in the development and possible release of Bt-engineered rice. Min. For. 12(2): 81-112. Demayo, C.G. and Isaias T. Domingo 1997. Variability in response of selected traditional and IRRI rices to tungro. Min. For. 12(2): 113-122 Demayo, C.G., Leah S. Basas and Amelita T. Angeles. 1997. Biology of the goldfringed stem borer Chilo auricilius and evaluation of its response to selected biocides. Min. For. 12(2): 189-200. Demayo, C.G. , Ralph Hilario and Adelina A. Barrion 1997. Effects of neem-based formulations on the brown planthopper Nilaparvata lugens (Stahl) and white backed planthopper Sogatella furcifera (Horvath).Min. For. 12(2): 201-207. Demayo, C.G., R.C. Saxena, and A.A. Barrion. 1988. Morphological, cytological and biochemical differences among green leafhopper Nephotettix species (Homoptera: Cicadellidae) in the Philippines. Philip. Ent. 7(4):359-385. Demayo, C.G., Z.R. Khan, and R.C. Saxena. 1988. Genetic differences between two rice leaffolder species, Cnaphalocrocis medinalis Guenee' and Marasmia patnalis Bradley associated with rice. Proc. Int'l. Conf. Plant Prot. pp. 332-335. Demayo, C.G., R.C. Saxena, and A.A. Barrion. 1990. Electrophoretic analysis of genetic variations in the green leafhopper, Nephotettix virescens (Distant) and the brown planthopper, Nilaparvata lugens (Stal) in the Philippines. Trans. Nat Acad. Sci. Demayo, C.G.,R.C. Saxena, and A.A. Barrion. 1990. Allozyme variations among biotypes of the brown planthopper, Nilaparvata lugens (Stal). Biochem. Genet. 29(3/4): 115-123. Demayo,C.G.,R.C. Saxena, and A.A. Barrion. 1990. Allozyme variations in natural populations of the brown planthopper, Nilaparvata lugens from the Philippines. Phil. Ent. 8(2): 737-748. Bottrell, D.G., R.M. Aguda, F.L. Gould, W. Theunis, C.G. Demayo, and W.F. Magalit. 1992. Potential Strategies for Prolonging the usefulness of Bacillus thuringiensis in Engineered Rice. Korean J. Appl. Entomol. 31: 247-255. Demayo, C. A.A. Barrion, R.C. Saxena, and I. Domingo 1994. Genetic Variation in natural populations of the green leafhopper, Nephotettix virescens Distant from the Philippines. Phil. Entomol. 9(3): 302-312). Demayo, C. A.A. Barrion, R.C. Saxena, and I. Domingo 1994. Cytological and allozyme differentiation in the green leafhopper, Nephotettix virescens Distant adapted in rices with known genes for resistance. Phil. Entomol. 9(3): 313-323). Demayo, C. A.A. Barrion, R.C. Saxena, Z.R. Khan, M. Tudor, and M. Caoili 1994. Cytological and Biochemical differences between the two species of rice leaffolders, Cnaphalocrocis medinalis and Marasmia patnalis from the Philippines. Phil. Entomol. 9(3): 324-349. Demayo, C. G., F. L. Gould, D. G. Bottrell, A. M. Romena and A. T. Angeles 1994..Geographic Variation in larval survival and growth of five yellow stem borer Scirpophaga incertulas (Lepidoptera:Pyralidae) Strains on Different Rice Hosts. Environmental Entomol. 23(6): 1428-1435. Demayo, C. G., F. L. Gould, D. G. Bottrell, A. M. Romena and A. T. Angeles 1994.Geographic Variation in larval survival and growth of six Striped Stem Borer Chilo suppressalis (Lepidoptera:Pyralidae) Strains on Different Rice Hosts Environmental Entomol. 23(6): 1436-1442 Magbanua, M.J., C.G. Demayo, and A.T. Angeles 1995. Biology of a local population of the striped stem borer Chilosuppressalis (Walker) (Lepidoptera:Pyralidae) and evaluation of its responses to different rice types and Bacillus thuringiensis formulations. Phil Ent. 95(5): 479-522. Duka, I.M.A., Tancongco,C.,CG Demayo, and D. Sta. Iglesia 1988. Laboratory Manual in General Biology I. UPLB Press. Papers Presented: Demayo, C.G. and R.C. Saxena 1987. Applications of enzyme electrophoresis in studies of genetic variation, differentiation, and evolution of some major rice insect pests in the Philippines. Poster paper presented at the 18th Int'l. Conf. on Plant Prot. Oct. 5-9, 1987, PICC, Manila, Philippines. Demayo, C.G., Z.R. Khan, and R.C. Saxena. 1988. Esterase heterogeneity among two species of rice leaffolders, C. medinalis and M. patnalis. Paper presented at the 19th Annual Conf. of the Pest Control Council of the Philippines, May 3-7, 1988, Sacred Heart Center, Cebu City. Demayo, C.G. and R.C. Saxena 1988. Genetic variations in Nilaparvata lugens and Nephotettix virescens. Paper presented at the 19th Annual Conf. of the Pest Control Council of the Philippines, May 3-7, Cebu City, Philippines. Demayo, C.G.,R.C. Saxena, and A.A. Barrion 1989. Applications of enzyme electrophoresis in systematics, ontogeny, pest diversity, and evolutionary studies in selected rice insect pests. Paper presented at the 20th Annual Conference of the Pest Control Council of the Philippines. May 9-12, 1989, Hyatt Terraces, Baguio City, Philippines. Demayo,C.G. 1990. Morphometrics and Genetics of the Green leafhopper, Nephotettix virescens Distant from the Philippines. Ph.D. thesis. Demayo, C.G.,R.C. Saxena, and A.A. Barrion. 1990. Cytological and Biochemical Genetic Diversity in selected leafhopper, planthopper, and leaffolder pests of rice. Paper presented to the Department of Science and Technology IV (STAR) Award, 1990. Demayo, C.G., R.C. Saxena, and A.A. Barrion. 1990. Morphological and Genetic differentiations in Nilaparvata lugens (Stal) and Nephotettix virescens (Distant): Implications in Pest management. Paper presented to the Los Banos Science Community's selection of the Most Outstanding Agricultural Research. Demayo.C.G., R.C. Saxena, and A.A Barrion. 1990. Morphological, cytological, biochemical, and allozyme differentiation of the green leafhopper, Nephotettix virescens (Distant) Among rices with known genes for resistance: Implications in Pest Management. Paper presented at the 21st Annual Conference of the Pest Control Council of the Philippines. May 6-10, 1990, Sugarland Hotel, Bacolod City, Philippines. R.C. Saxena, A.A. Barrion and C.G. Demayo.1990. Biotypes of planthoppers: challenges in developing resistance to rice. Paper presented in the Annual Scientific meeting of the Entomological Society of America, Hilton Riverside and Towers, New Orleans, Louisiana, U.S.A., Dec. 2-7, 1990. Demayo,C.G.,R.C. Saxena, and A.A. Barrion1991. Cytological and Biochemical Diversity between two leaffolder species, Marasmia patnalis and Cnaphalocrocis medinalis. Paper presented at the 22nd Annual Conference of the Pest Control Council of the Philippines. May 6-10, 1991, Bureau of Plant Industry, Manila, Philippines. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1992. Growth and feeding behavior of striped stemborer on Bt - formulated diets. Paper presented at the 23rd Annual Conference of the Pest Control Council of the Philippines. May 6-10, 1992, Development Academy of the Philippines, Tagaytay City, Philippines. Demayo,C.G., A.M. Romena, A.T. Angeles, F.L. Gould, and D.G. Bottrell 1992. Variability in local populations of the striped stemborer Chilo suppressalis and yellow stemborer Scirpophaga incertulas in their utilization of different rice hosts. Paper presented at the 23rd Annual Conference of the Pest Control Council of the Philippines. May 5-8, 1992, Development Academy of the Philippines, Tagaytay City, Philippines. Demayo,C.G., R. Aguda, A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1993. Diversity of Bacillus thuringiensis and evaluation of their effects against the yellow stemborer Scirpophaga incertulas and Striped stemborer Chilo suppressalis. Paper presented at the 24rth Annual Conference of the Pest Control Council of the Philippines. May 7-10, 1993, Sacred Heart Center, Cebu City, Philippines. A.T. Angeles, C.G. Demayo, C. Vega, F.L. Gould, and D.G. Bottrell 1993. Suitability of artificial diets in mass rearing selected rice pests. Paper presented at the 24rth Annual Conference of the Pest Control Council of the Philippines. May 4-7, 1993, Sacred Heart Center, Philippines. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1994. Assessing local adaptation in the utilization of different rice genotypes: utilization of repeated measures analysis. Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de Oro City, May 3-7, 1994. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1994. Geographic Variation in response to Bacillus thuringiensis endotoxins by the Yellow stemborer, Scirpophaga incertulas. Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de Oro City, May 3-7, 1994. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1994 Geographic Variation in response to Bacillus thuringiensis endotoxins by the Striped stemborer, Chilo suppressalis. Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de oro City, May 3-7, 1994. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1994 Evaluation of effects of Bacillus thuringiensis endotoxins utilizing Panicle dipping bioassay. Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de oro City, May 3-7, 1994. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell. 1994. Formulation of artificial diets in rearing the yellow stem borer, Scirpophaga incertulas. Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de oro City, May 3-7, 1994. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1994 Geographic Variation in Developmental Biology and Sex ratio in rice striped stemborer, Chilo suppressalis (Walker) in different rice genotypes. Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de Oro City, May 3-7, 1994. Demayo,C.G., A.T. Angeles, A.M. Romena, F.L. Gould, and D.G. Bottrell 1994 Geographic Variation in Developmental Biology and Sex ratio in rice yellow stem borer Scirpophaga incertulas (Walker). Paper presented at the 25th Annual Conference of the Pest Management Council of the Philippines, Pryce Hotel, Cagayan de oro City, May 3-7, 1994. Demayo, C. G. 1994. Biochemistry in Relation to Management of Rice Insect Pests. Paper presented at the Annual Convention of the Philippine Society of Biochemistry and Molecular Biology, Marine Science Institute, Diliman, Quezon City. Torres, M. J. and C.G. Demayo. 2002. Population Diversity in Dragonflies of Iligan City and Camiguin Island, Mindanao, Philippines. Poster paper presented in the 24th Annual Scientific Meeting of the National Academy of Science and Technology, July 10-11, 2002, Manila Hotel Torres, M. J. and C.G. Demayo. 2002. Variability within, between, and among populations of Neurothemis pallata from Iligan City. Poster paper presented, 7th National Genetics Symposium, October 17-18, 2002 Splash Mountain Resort and Hotel, Los Ba�os, Laguna Demayo, C.G. 2002. Environmental Issues and Concerns Affecting the Youth. Paper presented during the Science Day celebration on February 27, 2002, MSU at Naawan Fisheries High School, Naawan, Misamis Oriental Demayo, C.G. 2002. Investigatory Research in Secondary Science. Paper presented during the Integrated Science Research Seminar Workshop held on April 10,2002 at Gusa Regional Science High School, Gusa, Cagayan de Oro City Demayo, C.G. 2002. DNA in Forensic Science. Paper presented at the Iligan Medical Center College Social Hall, October 12, 2002, Iligan City Demayo, C.G. 2002. Human Genetics and Sexually Transmitted Diseases. Paper presented at the Iligan Medical Center College Social Hall, October 12, 2002, Iligan City Demayo, C.G. 2002. Biotechnology in Agriculture and Forensic Science. Paper presented at Misamis University on March 9, 2002, Ozamis City, Misamis Occidental Demayo, C.G. 2002. Human GeneticDisorders and Sexually Transmitted Diseases. Paper presented at Misamis University on March 16, 2002, Ozamis City, Misamis Occidental Demayo, C.G. 2002. Multimedia in Education. Paper presented during the Teaching Strategies Seminar-Workshop on March 18-20- and 21-23, 2002, MSU-IIT, Iligan City Researches: Demayo, C.G. , Gorospe, J., Leong, R., Hataas, L. Bumaat, A. and J. Yee. Biochemical Applications of Isozyme Analysis. Demayo, C.G.,Torres, M.J., Borra, R., Taladua, K.,and R. Eupe�a. Morphometrics and genetics of selected species of Odonatans of Iligan City, Sultan Kudarat, Molave, and Surigao. Demayo, C.G., Torres, M.J., and D. Quijoy. Population Genetic Structure of Higaunons of Rogongon, Iligan City Demayo, C.G., Martinez, J. G., Sentillanosa, E. and J. Bongayan. Butterfly Diversity in Iligan City Streams and Waterfalls Demayo, C.G. , Yu, M., and J.M. Pineda. Spider Fauna of Iligan City. Demayo, C.G. and E. Dorado. Genetics of the Tiboli Tribe of Cotabato Demayo, C.G. and S. Dael. Genetics of the Manobo Tribe of Agusan Demayo, C.G. and P. Macaraya. Genetics of a Maranao Sultanate in Lanao del Sur Demayo, C.G., Que-Esteves, A., and A. Pantillo. Dermatoglyphics of Selected populations of students. Demayo, C.G., L. Tejedor and A. Tano. Population Diversity of Rice Pests in Selected Rive Farms in Zamboanga del Sur and Lanao del Norte. BACK |