Effect of biopesticides applied separately or together on nutritional indices of the rice leaffolderCnaphalocrocis medinalis

Laboratory assays were done to evaluate the effect of neem seed kernel extract (Azadirachta indica A. Juss),Vitex negundo L. (Lamiales: Verbenaceae) leaf extract, andBacillus thuringiensis (Berliner), applied separately or together, on nutritional indices of the rice leaffolderCnaphalocrocis medinal...

Full description

Saved in:
Bibliographic Details
Published in:Phytoparasitica 2005-04, Vol.33 (2), p.187-195
Main Authors: Nathan, S. Senthil, Chung, Paul Gene, Murugan, K.
Format: Article
Language:English
Subjects:
Azadirachta indica
Biological control
Lamiales
Larval development
Lepidoptera
Low concentrations
Neem
Nutrition
Nutrition assessment
Oryza sativa
Pesticides
Plant extracts
Pyralidae
Rice
Verbenaceae
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Laboratory assays were done to evaluate the effect of neem seed kernel extract (Azadirachta indica A. Juss),Vitex negundo L. (Lamiales: Verbenaceae) leaf extract, andBacillus thuringiensis (Berliner), applied separately or together, on nutritional indices of the rice leaffolderCnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae). All three biopesticides suppressed feeding and larval growth and low concentrations affected the larval performance. The combined effect of the three biopesticides resulted in a considerable decrease in nutritional indices, indicating strong deterrence. Dose response relationships were established with respect to frass production and larval growth. The efficiency of conversion of ingested and digested food was considerably reduced.
ISSN:0334-2123
1876-7184
DOI:10.1007/BF03029978