A5010809230- Insect Pest Control Strategies
- Insect Resistance and Genetics
- Insect-Plant Interactions and Control
- Phytochemistry and Bioactivity Studies
- Insect Utilization and Effects
- Phytochemical compounds biological activities
- Agricultural pest management studies
- Entomopathogenic Microorganisms in Pest Control
- Insect and Pesticide Research
- Essential Oils and Antimicrobial Activity
- Nephrotoxicity and Medicinal Plants
Institute of Entomology
2015
Loyola University Chicago
2014
Bioefficacy of leaf and root extracts Aristolochia tagala Cham. at different concentrations was evaluated room temperature against Spodoptera litura Fab. Effects on feeding, larvicidal pupicidal activities larval-pupal duration were studied. Higher antifeedant activity (56.06%), lethal concentration for feeding inhibition (3.69%), (40.66%), (28%), total mortality (68.66%) prolonged (12.04-13.08 days) observed in ethyl acetate extract 5.0% concentration. Dose dependant effect test observed....
Larvicidal activity of pectolinaringenin from Clerodendrum phlomidiswas evaluated against Anopheles stephensi and antifeedant, larvicidal growth inhibitory activities were Earias vittella. Pectolinaringenin exhibited 100 98.24% 2nd 4th instar larvae at 5ppm concentration. It LC50 values 0.35 0.55 ppm for larvae, respectively. At concentration, maximum antifeedant 74.00% 89.98%. The 36.2 10.23 larvicidal, compound completely prevented the adult emergence 50 concentrations. This is first...
Flindersine, an alkaloid isolated from Toddalia asiatica, was evaluated for their antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera, Spodoptera litura activity vector mosquitoes Anopheles stephensi Culex quinquefasciatus. For this, leaf disc no choice method used agricultural pests; tested on second fourth instar larvae at different concentrations. Flindersine showed H. armigera S. An. Cx. It high regression (R2) values of 0.91 0.87 litura, respectively...
Twelve fractions from chloroform extract of Clerodendrum phlomidis and 5,7-dihydroxy- 4',6-dimethoxy-flavone (pectolinaringenin) were evaluated against Helicoverpa armigera. Maximum antifeedant (89.41%), larvicidal (83.77%) ovicidal (69.25%) activities observed in fraction 5. The least LC50 value for (178.09 ppm) (198.23 No adult emergence was recorded 4-6 at 1000 ppm. oviposition deterrent activity 100% 5 all the concentrations. Pectolinaringenin maximum (74.68%) (81.11%) 100 ppm; it...
Hexane, chloroform, and ethyl acetate extracts of Couroupita guianensis leaves were studied for ovicidal activity against S. litura . All the showed Maximum was noticed in hexane extract it least LC 50 90 values; regression equation also higher than other extracts. analyzed values homogeneity variance. The active fractionated eight fractions isolated. at different concentrations. Among fractions, fraction 8 maximum with values. Fraction differed statistically from fractions; value fractions....
In the past five decades, agricultural pests are controlled by synthetic pesticides which caused ill effects on non-target organisms and environment; also insect developed resistance minor became major pests. By keeping this in mind, present study was selected. Antifeedant larvicidal activities growth inhibitory of hexane, chloroform ethyl acetate leaf extracts Fleuggea leucopyrus (Koen.) Willd. against Helicoverpa armigera (Hbn.) were studied. evaluated at 0.5, 1, 2.5 5% concentrations...