MORTALITY AND REPELLENT ACTIVITY OF CLERODENDRUM VISCOSUM VENT. (VERBENACEAE) AGAINST SITOPHILUS ORYZAE (COLEOPTERA: CURCULIONIDAE)
Journal Title: International Journal of Pharmacognosy - Year 2014, Vol 1, Issue 4
Abstract
In continuation of our study we have screened out the root, leaf, and stem of C. viscosum against rice weevil, S. oryzae extracted into ethanol, ethyl acetate, and chloroform. A correlation was found between the insecticidal and repellent activity observed by residual film assay technique and repellency test. It is interesting to note that these plant extracts showed higher to less mortality activity by using 3.93, 1.97, 0.98, 0.49 and 0.25 mg-cm-2 doses. From the overall assessment suggested that the root extracts showed most potency. Ethanol fraction of root extract exposed 44-84% mortality with 0.39 mg/ml of LC50 value at 72 h of exposure and 95% confidence limit was 0.19 - 0.80. Repellency test carried out ethanol fraction. All the extracts showed 100% repellency (Class V category repellency) in dose no 1 to a dose no 5. The degree of repellency response among the three parts of the test insect was significantly different (P<0.05). Class V category repellency was observed for root and leaf up to dose 0.06 mg-cm-2 (Dose no 7). Whereas, the lowest dose at which the stem exhibited class V category repellency at 0.12 mg-cm-2. The root extract showed strong repellent activity than the leaf and stem. The susceptibility of contact toxicity in the intensity of solvents was found ethyl alcohol > ethyl acetate > chloroform fraction. The dose-mortality order of the C. viscosum extracts is root > stem > leaf.
Authors and Affiliations
T. M. Waliullah et al.
Keywords
Related Articles
- EP ID EP554225
- DOI -
- Views 72
- Downloads 0
ANTIMICROBIAL ACTIVITY OF SECONDARY METABOLITES FROM PLANTS- A REVIEW
Plants are valuable sources of natural products. Despite the availability of different approaches for the discovery of therapeutically, natural products remain as one of the best reservoirs of new structural types. They...
EVALUATION OF ANTIOXIDANT ACTIVITY OF ETHANOLIC EXTRACTS OF LENS CULINARIS, VIGNA UNGUICULATA, DOLICHOS BIFLORUS AND PHALASEOUS VULGARIS SEEDS
The present investigation has been carried out to determine the antioxidant activity of the ethanolic extracts obtained from plant seeds belonging to family Leguminosae i.e. Lens culinaris, Vigna unguiculata, Dolichos bi...
ANATOMICAL AND THIN LAYER CHROMATOGRAPHIC IDENTIFICATION OF ROOT, ROOT-BARK AND LEAF OF PREMNA SERRATIFOLIA L.
Anatomical characters and thin layer chromatographic fingerprint of root, root-bark and leaf of Agnimanthaḥ (Premna serratifolia L.), an important drug used in Ayurvedic system of medicine has been studied in detail to i...
ANTIOXIDANT EFFECT OF CRUDE WATER EXTRACT OF VETIVERIA ZIZANIOIDES (GRAMINEAE) IN MICE WITH ACETAMINOPHEN INDUCED HEPATOTOXICITY
Acetaminophen (APAP) is widely used as an analgesic and antipyretic drug. The large dose of APAP results in severe hepatic necrosis due to the oxidative stress. This work evaluates the antioxidant activity of crude water...
ANATOMICAL STUDIES ON LEAF OF CADABA FRUTICOSA (L.) DRUCE
Cadaba fruticosa (L.) Druce belongs to the family Capparaceae. It is woody, erect, glandular- pubescent shrubs. It is used in the folk system of medicine. Anti-rheumatic, anthelmintic and antibacterial properties it is a...