A5049694197- Entomopathogenic Microorganisms in Pest Control
- Insect Resistance and Genetics
- Insect Pest Control Strategies
- Insect-Plant Interactions and Control
- Viral Infectious Diseases and Gene Expression in Insects
- Nematode management and characterization studies
- Insect Utilization and Effects
- Coleoptera: Cerambycidae studies
- Insect symbiosis and bacterial influences
- Coleoptera Taxonomy and Distribution
- Phytoplasmas and Hemiptera pathogens
- Insects and Parasite Interactions
- Hemiptera Insect Studies
- Studies on Chitinases and Chitosanases
- Parasite Biology and Host Interactions
- Research on scale insects
- Mosquito-borne diseases and control
- Plant Pathogens and Fungal Diseases
- Scarabaeidae Beetle Taxonomy and Biogeography
- Crop Yield and Soil Fertility
- Insect and Arachnid Ecology and Behavior
- Lepidoptera: Biology and Taxonomy
- Plant Virus Research Studies
- Plant and animal studies
- Botany and Geology in Latin America and Caribbean
University of the Philippines Los Baños
2001-2024
Nagoya University
2001-2009
The Sineguelas Leaf Beetle (SLB), Podontia quatuordecimpunctata (L., 1767), (Chrysomelidae: Galerucinae: Alticini), is a highly destructive invasive and pest of Spondias purpurea L., 1762 (Anacardiaceae) in the Philippines. This study reports first identification three indigenous entomopathogenic fungi, Beauveria bassiana (Bals.-Criv.) Vuill. (1912), Metarhizium anisopliae (Metschn.) Sorokin, 1883, Aspergillus pseudonomius Varga, Samson Frisvad (2011), infecting different life stages SLB....
Abstract The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), is an invasive pest species that has incurred massive economic damages in areas cultivating economically important crops like corn, rice, cotton and many others. Known to be a native of the Western Hemisphere, FAW since then established itself parts Africa, Asia Australia Oceania. Philippines had been among Asian countries vulnerable invasion, which was validated June 2019. This study aims characterize existing strains...
Ld652Y cells derived from the gypsy moth, Lymantria dispar, were infected with seven different nucleopolyhedroviruses (NPVs) including those Autographa californica, Bombyx mori (BmNPV), Hyphantria cunea (HycuNPV), Spodoptera exigua (SeMNPV), L. Orgyia pseudotsugata (OpMNPV) and litura (SpltMNPV). The results showed that BmNPV, HycuNPV, SeMNPV, OpMNPV SpltMNPV underwent apoptosis, displaying apoptotic bodies, characteristic DNA fragmentation increased caspase-3-like protease activity; HycuNPV...
In search for local entomopathogenic nematode (EPN) species as a biological control agent of lepidopterous insect pests corn, survey EPN in the major islands Philippines was conducted. Seven populations from 279 soil samples were isolated using Ostrinia furnacalis, key target pest corn country, bait. Analysis ITS1-5.8S-ITS2 ribosomal DNA sequence revealed presence Steinernema abbasi, minutum , tami and Heterorhabditis indica . The pathogenicity these tested furnacalis Spodoptera litura...
A total of five new cell lines were established from Helicoverpa armigera; including KU-HaEmb1 (HaEmb1) and KU-HaEmb2 (HaEmb2) embryos, KU-HaPO1 (HaPO1) KU-HaPO2 (HaPO2) pupal ovaries, KU-HaAO1 (HaAO1) adult ovaries. These examined for their permissiveness homologous H. armigera nucleopolyhedrovirus (HearNPV) seven heterologous NPVs. Upon infection with HearNPV, the line HaAO1 yielded highest productivity in terms amounts polyhedra, budded virus (BV), polyhedrin viral DNA among six lines,...
Abstract Background Fungal phytopathogens are one of the leading causes loss in global food production. Chemical fungicides have always been used to control mitigate losses. However, it is widely known that this approach not sustainable. Thus, essential develop alternative methods, such as use biological agents. Results This study provided a preliminary data on efficacy 2 local Photorhabdus strains, associated with Heterorhabditis indica BSDS and H. MAP, against selected post-harvest fungal...
The importance of fungal attack to acarina has been observed but not yet on Tetranychus kanzawai . When infected mite, either within in a same species or even different entomopathigenic probably have similar signs and simptoms mites. Characteristic entomopathogenic fungus kanza-wai was investigated. Three selected isolates Metarhizium anisopliae , from Philippines Indonesia were evaluated. following aspects investigated: (1) Bioassay tes virulence, (2) Koch Postulate (3) Infection process...
Two new species of OncocephalaAgassiz 1846 (Coleoptera: Chrysomelidae: Cassidinae: Oncocephalini) from the African region are described and illustrated: Oncocephala nadeini Calcetas, Adorada, Staines, Sudan wilmalegaspiae Togo Liberia. A key to genera Oncocephalini is provided.
New records of scarab pests cacao (Theobroma L.) were reported in the Philippines: rhizotrogine chafer, Holotrichia bipunctata Brenske, 1892 (Coleoptera: Scarabaeidae: Melolonthinae: Rhizotrogini) and diplotaxine chafer Apogonia palawana Heller, 1897 Diplotaxini). The feeding patterns two insect are characterized, some integrated pest management recommendations cited.
The importance of fungal attack to acarina has been observed but not yet on Tetranychus kanzawai . When infected mite, either within in a same species or even different entomopathigenic probably have similar signs and simptoms mites. Characteristic entomopathogenic fungus kanza-wai was investigated. Three selected isolates Metarhizium anisopliae , from Philippines Indonesia were evaluated. following aspects investigated: (1) Bioassay tes virulence, (2) Koch Postulate (3) Infection...
Abstract The infestation of coconut scale insects (CSI), Aspidiotus destructor and A. rigidus , resulted in significant economic damages to the Philippine industry recent years. This incident demands a thorough understanding biological information insect pests understand how they thrive perpetuate despite adverse ecological conditions. research explored microsatellite mining, characterization, marker design on two species insect. Using bioinformatics approaches, predominant dinucleotide...
Aedes aegypti Linn. (Diptera: Culicidae) is one the most common vectors of disease-causing arboviruses such as dengue and chikungunya. The lack vaccines for these diseases coupled with current problem increasing insecticide resistance intensifies need to find novel efficient ways controlling vector population. Hence, this paper aims investigate biological activity Philippine Streptomyces isolates against Ae. potential agents manage population mosquitoes. Prior testing activity, eight...
A putative nucleopolyhedrovirus (NPV) from a field-collected local Spodoptera picta population was isolated for the first time. Its pathogenesis described in S. larvae and tentatively assigned name or SppiNPV. With objective of utilizing this SppiNPV as biological control agent, its cross-infectivity to litura – very important agricultural pest country evaluated. Third instar were infected with approximately 100 occlusion bodies (OBs) using artificial diet- incorporation. infection clearly...
The morphometrics of four genital traits were examined among the 27 local populations Asian corn borer (ACB), Ostrinia furnacalis (Guenee). Comparison in measurements traits, namely: aedeagus, sacculus and valva lengths clasper width, showed significant differences within compared. Cluster analysis based on percent correct classification revealed groups ACB with 96% accuracy,-However, more sensitive jackknife that formed 85% accurate. results also regardless geographical distance. variations...
The importance of fungal attack to acarina has been observed but not yet on Tetranychus kanzawai . When infected mite, either within in a same species or even different entomopathigenic probably have similar signs and simptoms mites. Characteristic entomopathogenic fungus kanza-wai was investigated. Three selected isolates Metarhizium anisopliae , from Philippines Indonesia were evaluated. following aspects investigated: (1) Bioassay tes virulence, (2) Koch Postulate (3) Infection process...