Acute Toxicity of Two Tropical Plant Extracts on the Fecundity and Fertility of Culex Quinquefasciatus Say

Autor:	E. Pushpalatha
Rok vydání:	2015
Předmět:	Veterinary medicine Larva biology Hatching media_common.quotation_subject fungi Pogostemon quadrifolius Fertility General Medicine Fecundity biology.organism_classification Culex quinquefasciatus Acute toxicity parasitic diseases Botany media_common EC50
Zdroj:	Advances in Zoology and Botany. 3:38-41
ISSN:	2331-5091 2331-5083
DOI:	10.13189/azb.2015.030302
Popis:	Acute toxicity tests were conducted to determine the biological effects of partially purified extract of two tropical plants Croton hirtus L'Her., Pogostemon quadrifolius (Benth.) F.Muell on the juveniles of Culex quinquefasciatus Say. Rearing of C. quinquefasciatus larvae in water at concentration less than the critical concentrations for inhibition of adult emergence in 50% of treated larvae (EC50) of the ethyl acetate fraction of Croton hirtus and Pogostemon quadrifolius leaf extracts from hatching to emergence significantly decreased the fecundity of the C. quinquefasciatus and the hatchability of their eggs. At highest concentration of 50% EC50 of the extracts the decrease in the fecundity over the control ranged between 72.4 and 85.4 %.
Databáze:	OpenAIRE
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