Scientist Profile

Photo

Virginia Ramos Ocampo

Expertise: Agriculture, Insecticide Toxicology, Insect pest management, Insect Biochemistry, Biopesticides, Agricultural Chemicals, Pesticide Toxicity, Insect Physiology, Insecticide Resistance, Insect Rearing, Entomology, Integrated pest management, Animal Breeding, Mycology

Affiliation

Professor of Entomology, University of the Philippines Los Baños, College, 4031 Laguna

Association

    • National Research Council of the Philippines, Regular Member

Employment

    • College of Agriculture, University of the Philippines Los Baños, Professor of Entomology, 1976 - Present

Research

    • Dengue Vector Surveillance in Selected Public Schools in the National Capital Region [Completed], Start: Jan. 1, 2013; End: April 30, 2014
    • Acute Undifferentiated Fever As An Early Warning Tool For Dengue [Completed], Start: Jan. 1, 2013; End: April 30, 2014
    • Development of School-Based Critical Threshold Indices for Aedes aegypti [Completed], Start: Jan. 1, 2013; End: April 30, 2014

Papers Presented

    • The effects of radiation on the biology and reproduction of Helicoverpa armigera Lepidoptera Noctuidae, Evaluation of Lepidoptera population suppression by radiation-induces sterility, 
      Penang, Malaysia
    • Pesticides in Corn and Grain Legumes Production in the Philippines, Sensible Use of Pesticides. Food and Fertilizer Technology Center for Asia and the Pacific Seminar
    • Effects the gamma radiation has on female corn earworm, Helicoverpa armigera Hubner, 31st Pest Management Council of the Philippines (PMCP) Convention. Hotel Supreme, Baguio City, Philippines

Publication

    • Ramos, V.E., & Morallo-Rejesus, B., (1976) Effects of Nutrition on larval coloration of Helicoverpa armigera Hubner
    • Philippine Entomologist Volume 3, No. 3-4
    • Ramos, V.E., & Morallo-Rejesus, B., (1979) The Occurrence of Helicoverpa assulta (Guenee) in the Philippines
    • Philippine Entomologist Volume 4, No. 3
    • Medina, J.R., Ocampo, V.R., Magallona, E.D., & Sanchez, F.F., (1979) Pesticides in corn and grain-legume production in the Philippines
    • In book: Tetangco, M.H., (ed.), Sensible Use of Pesticides. Chapter: 6, Publisher: Food and Fertilizer Technology Center for the Asian and Pacific Region (ASPAC-FFTC), Taipei, Taiwan, Republic of China, 250 p
    • Ramos, V.E., & Morallo-Rejesus, B., (1980) Effects of natural and semi-synthetic diets on the growth and development of the corn earworm Helicoverpa armigera (Hubner).
    • Philippine Entomologist Volume 4, No. 5
    • Ramos-Ocampo, V.E., & Hsia, M.T.S., (1986) Toxicity and Chemosterilant activity of calamus oil and asarone analogues to the kelp fly Coelopa frigida (F)
    • Philippine Entomologist Volume 6, No. 5
    • Ocampo, P.P., Lauan, M.C.B., Ocampo, V.R., & Lontoc, B.M., (2000) Effects the gamma radiation has on female corn earworm, Helicoverpa armigera Hubner
    • Proceedings of the 31st Pest Management Council of the Philippines (PMCP) Convention. Hotel Supreme, Baguio City, Philippines
    • Ramos-Ocampo, V.E., & Hsia, M.T.S., (1986) The influence of calamus oil and asarone analogues on the reproduction of Oncopeltus fasciatus (Dallas)
    • Philippine Entomologist Volume 6, No. 5
    • Ramos-Ocampo, V.E., & Hsia, M.T.S., (1987) Effects of acute treatments of calamus oil, beta-asarone, and dimethoxypropenylbenzene analogues in laboratory rats
    • Philippine Entomologist Volume 7, No. 2
    • Ramos-Ocampo, V.E., & Hsia, M.T.S., (1988) Mutagenecity and DNA damaging activity of calamus oil, asarone isomers and dimethoxypropenylbenzene analogues in Salmonella typhimurium mutants and isolated rat hepatocytes
    • Philippine Entomologist Volume 7, No. 3
    • Ocampo, V.R., Magallona, E.D., & Tejada, A.W., (1998) Pesticide residues in the Philippines
    • In book: Teng, P.S., & Heong, K.L., (eds.), Pesticide Management and Integrated Pest Management in Southeast Asia. Chapter: 44. Publisher: Consortium for International Crop Protection, 4321 Hartwick Road, Suite 404, College Park MD 20740, USA, 473 p
    • Florentino, C., Ocampo, P.P., & Ocampo, V.R., (1993) Effects of lagundi (Vitex negundo L.) crude extracts on some reproductive parameters of adult male albino rats
    • Annual Scientific Meeting of the Pest Management Council of the Philippines, Cebu City, Philippines
    • Lauan, M.C.B., Ocampo, P.P., & Ocampo, V.R., (2004) Ovarian changes induced by gamma
      radiation treatments on corn earworm, Helicoverpa armigera Hubner (Lepidoptera:Noctuidae)
    • Philippine Entomologist Volume 18, No. 1
    • Rimas, M.F.M., Ocampo, P.P., & Ocampo, V.R., (2000) Effects of gamma radiation on the testicular cells of corn earworm (Helicoverpa armigera (Hubner))
    • Philippine Entomologist Volume 14, No. 2
    • Manimtim, J.B., & Ocampo, V.R., (1989) Efficacy of insecticides against pests of the medicinal plant Vitex negundo L.
    • Pest Control Council of the Philippines. Baguio City, Philippines
    • Anaez, L.C., Tejada, A.J., & Ocampo, V.R., (1989) Fate of pesticide residues on lagundi (Vitex negundo L.)
    • Pest Control Council of the Philippines, Baguio City, Philippines
    • Rejesus, B.M., Haini, H.A., Ocampo, V.R., Dayrit, F.M., & Quintana, E.G., (1993) Insecticidal actions of several Philippine plants with emphasis on Vitex negundo L.
    • Philippine Agriculturist Volume 76, No. 4
    • Chio, J.T., Dayrit, F.M., Ocampo, P.P., & Ocampo, V.R., (1992) A study on the environmental impact of detergents, III: Toxicity of Alkylbenzene Sullfonates (ABS) and Coconut Fatty Alcohol Sulfates Towards Fish and Rats
    • Philippine Journal of Science
    • Ocampo, V.R., (1994) Botanical insecticide research and development in relation to safe use
    • Philippine Agricultural Scientist Volume 77, No. 1
    • Bella, A.P., Jerusalem, G.L., Barrion, A.A., Ocampo, V.R., & de Leon, J.B., (1997) Gamma ray induction of translocations in the corn earworm Helicoverpa armigera (HBN) (Lepidoptera: Noctuidae)
    • Philippine Entomologist Volume 11, No. 2
    • Cueno, M.E., Laude, R.P., & Ocampo, V.R., (1998) Cytogenetics of corn earworm Helicoverpa armigera Hbn
    • Philippine Agricultural Scientist Volume 81, No. 1&2
    • Ocampo, V.R., & de Leon-Facundo, J.B., (1999) A glass vial technique for monitoring insecticide resistance in Helicoverpa armigera (Hbn) in the Philippines
    • Philippine Entomologist Volume 13, No. 2
    • Ocampo, V.R., Añober, G.M., & Rejesus, R.S., (2000) A new Halictophagid species parasitizing mango leafhopper Idioscopus clypealis (Lethierry) (Hemiptera:Cicadellidae) in South Luzon, Philippines
    • Philippine Entomologist Volume 14, No. 2
    • Ocampo, V.R., Tabur, M.T., Fulgencio, R.D., Lim, A.C., & Orozco, F.D., (2000) Diet development and mass rearing of the corn earworm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) in the Philippines
    • Philippine Agricultural Scientist Volume 83, No. 3
    • Ocampo, V.R., (2001) Effect of a Substerilizing Dose of Radiation on the Mating Competitiveness of Male and on the Mating Propensity of Female Helicoverpa armigera (Lepidoptera: Noctuidae)
    • Florida Entomologist Volume 84, No. 2
    • Ilagan, K., Laude, R.P., Ocampo, V.R., & Villamael, L.M., (2004) Cytogenetics of the mango leafhopper Idioscopus clypealis Homoptera:Cicadellidae
    • Philippine Agricultural Scientist Volume 87, No. 4
    • Patricio, M.G., Ocampo, V.R., & Cadapan, E.P., (2005) Biology and Abundance of the Striped Flea Beetle Phyllotreta striolata (F.) (Coleoptera: Chrysomelidae), on Pak-Choi (Brassica campestris var. chinensis L.) and Management Options Against the insect pest
    • Philippine Entomologist Volume 19, No. 1
    • Alouw, J.C., Morallo-Rejesus, B., & Ocampo, V.R., (2005) Biology of the Coconut Spike Moth Tirathaba fructivora (Meyr) (Lepidoptera: Pyralidae)
    • Philippine Entomologist Volume 19, No. 1
    • Sarmiento, G.M., & Ocampo, V.R., (2010) Variability in response to insecticides of field populations of diamondback moth, Plutella xylostella (Linnaeus), in the Philippines
    • Philippine Entomologist Volume 24, No. 1
    • Belen, J.M., Ocampo, V.R., & Caoili, B.L., (2011) Pathogenicity and Biological Characterization of Entomopathogenic Fungi Isolated from Corn Earworm, Helicoverpa armigera (Hubner) (Lepiodptera: Noctuidae)
    • Philippine Entomologist Volume 25, No. 1
    • Ubaub, L.T., & Ocampo, V.R., (2012) Field biology, setal map and adult genitalia of the citrus rind borer Prays endolemma Diakonoff (Lepidoptera: Yponomeutidae) on Pummelo Citrus maxima (Burm) Merr. (Rutaceae) in Region XI, Philippines
    • Philippine Entomologist Volume 26, No. 1
    • Ubaub, L.T., & Ocampo, V.R., (2012) Pattern of Infestation and characteristic damage of the citrus rind borer Prays endolemma Diakonoff (Lepidoptera: Yponomeutidae) on Pummelo Citrus maxima (Burm) Merr. (Rutaceae) in Region XI, Philippines
    • Philippine Entomologist Volume 26, No. 2
    • Kathirithamby, J., McMahon, D.P., Anober-Lantican, G.M., & Ocampo, V.R., (2012) An unusual occurrence of multiparasitism by two genera of Strepsiptera (Insecta) in a mango leafhopper Idioscopus clypealis (Lethierry) (Hemiptera: Cicadellidae) in the Philippines
    • Zootaxa Volume 3268
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2013) Transmission effects of entomopathogenic fungi on population of Tetranychus kanzawai (Kishida) (Tetranychidae: Acarina)
    • Arthropods Volume 2, No. 1
    • Sanjaya, Y., Ocampo, V.R., Caoili, B.L., (2013) Infection process of entomopathogenic fungi Metarhizium anisopliae in the Tetrancyhus kanzawai (Kishida) (Tetranychidae: Acarina)
    • Agrivita Volume 35, No. 1
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2013) Selection of entomopathogenic fungi against the red spider mite Tetranychus kanzawai (Kishida) (Tetranychidae: Acarina)
    • Arthropods Volume 2, No. 4
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2014) Entomopathogenic characterization of Beauveria bassiana fungi against Tetranychus kanzawai (Kishida) (Tetranychidae: Acarina) spider mite by its region
    • Thai Journal of Agricultural Science Volume 47, No. 1
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2016) Identification of Potential Entomopathogenic Fungi of Teranychus kanzawai Kishida (Tetranychidae: Acarina) Using ITS-5.8s rDNA Region As Molecular marker
    • Agrivita Volume 38, No. 2
    • Soe, M.M., Ocampo, V.R., Caoili, B.L., Javier, P.A., & Rebancos, C.M., (2014) Superparasitism and Multiparasitism of the Mango Leafhoppers by Halictophagus fulmeki (Hofenader) and Callipharixenos philippines Kathirithamby and McMahon (Strepsiptera)
    • Philippine Entomologist Volume 28, No. 2
    • Soe, M.M., & Ocampo, V.R., (2015) Parasitization of Bakera nigrobilineata (Melichar) (Hemiptera:Cicadellidae) by an Unidentified Strepsipteran
    • Philippine Entomologist Volume 29, No. 2
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2015) Role of new novel entomopathogenic fungi Paecilomyces lilacinus to moratality and infection process of Tetranychus kanzawai (Kishida) (Tetranychidae:Acarina)
    • International Journal of Biosciences Volume 7, No. 3
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2015) Infection Process of Entomopathogenic Fungi Beauveria Bassiana in Tetranychus kanzawai (Kishida) (Tetranichidae:Acarina)
    • 2015 Volume 4, No. 3
    • Javier, A.M.V., Ocampo, V.R., Ceballo, F.A., & Javier, P.A., (2016) Insecticidal Activity of Four Essential Oils against Diamondback moth, Plutella xylostella Linnaeus (Lepidoptera:Pyralidae)
    • Philippine Agricultural Scientist Volume 99, No. 2
    • De Las Llagas, L.A., Bersales, L.G., Bertuso, A.G., Mistica, M.S., Ocampo, V.R., Samaniego, J.B., Magsino, E.A., & Alzona, F.D., (2013) Mosquito Larvicidal Trap (MLT) as Surveillance and Control Tool for Aedes Mosquitoes
    • Southeast Asian Journal of Tropical Medicine and Public Health Volume 47, No. 4
    • Sanjaya, Y., Ocampo, V.R., & Caoili, B.L., (2016) Pathogenicity of three entomopathogenic fungi, Metarhizium anisopliae, Beauveria bassiana, and Paecilomyces lilacinus to Tetranychus kanzawai infesting papaya seedlings
    • Arthropods Volume 5, No. 3
    • Javier, A.M.V., Ocampo, V.R., Ceballo, F.A., & Javier, P.A., (2017) Insecticidal Activity of Selected Essential Oil Extracts Against Common Cutworm, Spodoptera litura Fabricius (Lepidoptera: Noctuidae)
    • Philippine Journal of Science Volume 146, No. 3
    • Javier, A.M.V., Ocampo, V.R., Ceballo, F.A., & Javier, P.A., (2018) Insecticidal Activities of the Essential Oils from Different Plants Against the Cabbage Worm, Crocidolomia pavonana Fabricius (Lepidoptera: Crambidae)
    • Philippine Agricultural Scientist Volume 101, No. 2
    • Javier, A.M.V., Ocampo, V.R., Ceballo, F.A., & Javier, P.A., (2018) Insecticidal Activity of Crude Ethanolic Extracts of Five Philippine Plants against Cabbage Worm, Crocidolomia pavonana Fabricius (Lepidoptera: Crambidae)
    • Philippine Journal of Science Volume 147, No. 3
    • Ramos Ocampo, V., & de Leon, J.B., (2002) The effects of Radiation on the Biology and Reproduction of Helicoverpa armigera (Lepidoptera:Noctuidae)
    • Evaluation of Lepidoptera Population Suppression by Radiation-Induced Sterility
    • Alouw, J.C., Morallo-Rejesus, B., & Ocampo, V.R., (2005) Biology of the Spike Moth Tiratraba fructivora (Meyr) (Lepidoptera: Pyralidae)
    • Philippine Entomologist Volume 19, No. 1