<mods:mods version="3.3" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-3.xsd" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><mods:titleInfo><mods:title>Insect Antifeedants And Growth Inhibitors From Azadirachta Indica And Plumbago Zeylanica</mods:title></mods:titleInfo><mods:name type="personal"><mods:namePart type="given">H C</mods:namePart><mods:namePart type="family">Sharma</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">K</mods:namePart><mods:namePart type="family">Leuschner</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">A V B</mods:namePart><mods:namePart type="family">Sankaram</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">D</mods:namePart><mods:namePart type="family">Gunasekhar</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">M</mods:namePart><mods:namePart type="family">Marthandamurthi</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">K</mods:namePart><mods:namePart type="family">Bhaskaraiah</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">M</mods:namePart><mods:namePart type="family">Subrahmanyam</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">N</mods:namePart><mods:namePart type="family">Sultana</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:abstract>Solvent extracts of dlfferent parts of the neem tree (Azadlrachta lndica A. 3uss)&#13;
were bioassayed for thelr antlfeedant properties agalnst flrst- and thlrd-instar&#13;
larvae of Mythimna reparata. Fraction 'C', obtalned from an ethanollc extract of&#13;
the shade-drled neem seeds (Hyderabad, India) was the most effective phagodeterrent&#13;
under glasshouse, laboratory and, to a 11mlted extent, fleld conditions.&#13;
Fractlon 'C' was further purlfled to fractlon 'M', whlch was subjected to column&#13;
chromatography (silica gel) result~ng In IG fractions, AI-l to AI-14. Fractions&#13;
AI-9, AI-10 and AI-11 were found to be b~olog~calalyc tive, reduclng leaf feedlng&#13;
and larval weight consrderably. None of the treated larvae whlch fed on leaf&#13;
dlscs treated wlth the fractions and extracts 'C' and 'M' could pupate. The retentlon&#13;
tlme of the malor component of AI-10 on a p BONDAPAK C18 10 u, 3.9&#13;
mm ID, 30 cm column (hlgh performance liquid chromatography) was close to&#13;
that of azadlrachtln. Spectral lnvestlgatlons revealed that this major component&#13;
of A1 1s dlfferent from the antifeedants reported earher from A, indica and Melia&#13;
azedarach. It has been des~gnated as vepaol (the Telugu name for neem IS vepa),&#13;
and some aspects of 11s structure are discussed. Studles relatlng to the effectiveness&#13;
of fraction 'G' on the oriental rmyworm, Mythrmna reparata, and other sorghum pests are presented.</mods:abstract><mods:classification authority="lcc">Agriculture-Farming, Production, Technology, Economics</mods:classification><mods:classification authority="lcc">Entomology</mods:classification><mods:originInfo><mods:dateIssued encoding="iso8061">1983</mods:dateIssued></mods:originInfo><mods:genre>Conference or Workshop Item</mods:genre></mods:mods>