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Phytotoxicity of leaf extracts of multipurpose trees against insect pests in bitter gourd (Momordica charantia) and brinjal (Solanum melongena)

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator JACOB JOHN
LEELA, N K
SREEKUMAR, K M
ANESH, R Y
HEMA, M
 
Date 2014-06-19T05:01:10Z
2014-06-19T05:01:10Z
2007
 
Identifier AlIelopathy Journal 20 (2) : 411-418 (2007)
0971-4693
http://hdl.handle.net/123456789/1120
 
Description Field studies were conducted to assess the allelopathic influence of leaf extract of multipurpose trees viz., Ailanthus (Ailanthus triphysa Dennst.), cashew
(Anacardium occidentale L.), Casuarina (Casuarina equisellifolia L ), gliricidia
(Gliricidia sepium Steud. ), jack (Artocarplls heterophylllls Lam.), Strychnos
(Strychnos nux-vomica L.), mango (Mangifera indica L.), portia (Thespesia poplllnea
(L.) Soland.), tamarind (Tamarindus indiclls L.), teak (Tectona grandis L.F. ), grown
in multi-storey home gardens of Kerala, India on growth, yield and insect pests in
vegetables viz., bitter gourd (Momordica charantia L. cv. Preethi) and brinjal
(Solanum melongena L. cv. Haritha). Spraying with Ailanthlus and cashew leaf
extracts was as effective as insecticides in reducing fruit fly (DaucIus cucurbitae)
attack in bitter gourd and yield obtained was also identical to insecticides treatment.
Ailanthus, cashew, tamarind and teak effectively controlled epilachna beetle
(Epilachna vigintiopunctata). Insect control achieved by spraying tamarind and teak
leaf extracts treatments was similar to insecticide spraying. In brinjal, extracts of
Ailanthus, cashew and casuarina reduced fruit borer infestation (Leucinodes
orbonalis) considerably. Ailanthus and cashew extracts also improved the yield and
was on par with that obtained with spraying of insecticides. The leaf extract of the
trees were analyzed by Thin Layer Chromatography (TLC) for the presence of five
important groups of secondary metabolites viz., terpenoids, alkaloids, flavonoids,
saponins and triterpenes. The results show the possible use of leaf extracts of
Ailanthus and cashew, to control the insect pests in bitter gourd and brinjal.
 
Format 2253467 bytes
application/pdf
 
Language en
 
Publisher International Allelopathy Foundation
 
Subject Allelopathy
Bitter gourd
brinjal
epilachna beetle
fruit borer
fruit fly
insecticide
leaf extract
multipurpose trees
phytotoxicity
secondary metabolites
vegetable
yield
 
Title Phytotoxicity of leaf extracts of multipurpose trees against insect pests in bitter gourd (Momordica charantia) and brinjal (Solanum melongena)
 
Type Article