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Chemical Basis for the Antifeedant Activity of Natural Hydroxamic Acids and Related Compounds
(2004)
Natural hydroxamic acids and related compounds derived from the 1,4-benzoxazin-3-one structure show antifeedant activity against the aphid Rhopalosiphum padi. This antifeeding activity is based on the electrophilic character ...
Insect antifeedant compounds from Nothofagus dombeyi and N. pumilio
(2004)
A bioassay-guided purification of the extracts of Nothofagus dombeyi and N. pumilio leaves yielded several triterpenes and flavonoids including 2-O-acetylmaslinic acid, 3-O-acetyl 20,24,25-trihydroxydammarane, and ...
Antifeedant effects of marine halogenated monoterpenes
(2002)
In this work the antifeedant effects of the halogenated monoterpenes 1-13 were tested against several divergent insect species. These compounds have been isolated from Plocamium cartilagineum (6 was isolated as an acetyl ...
Antifeedant activity of ethanolic extract from Flourensia oolepis and isolation of pinocembrin as its active principle compound
(Elsevier, 2009-12)
The ethanolic extract from Flourensia oolepis aerial parts showed strong antifeedant activity against the pest larvae, Epilachna paenulata, with an antifeedant index (AI%) of 99.1% at 100 μg/cm2. Based on chromatographic ...
QSAR analysis on Spodoptera litura antifeedant activities for flavone derivatives
(Elsevier Science, 2009-12)
We establish useful models that relate experimentally measured biological activities of compounds to their molecular structure. The pED50 feeding inhibition on Spodoptera litura species exhibited by aurones, chromones, ...
Bis- and mono-substituted Chalcones exert anti-feedant and toxic effects on fall armyworm Spodoptera frugiperda
(Elsevier, 2021-10)
Spodoptera frugiperda is a highly polyphagous migratory lepidopteran pest species. It causes infestation in crops leading to the severe crop losses. Being a new invasive parasite, its susceptibility to insecticides needs ...
Structure-antifeedant activity relationship of clerodane diterpenoids. Comparative study with withanolides and azadirachtin
(American Chemical Society, 2000-08)
A structure-antifeedant activity relationship (SAR) study of clerodane diterpenoids was carried out. Attention was focused on the feeding-deterrent activities exhibited toward Tenebrio molitor by clerodane diterpenoids and ...
Patterns of bioactivity and herbivory on Nothofagus species from Chile and New Zealand
(2000)
Nothofagus species from Chile and New Zealand were surveyed in the field for invertebrate abundance and leaf feeding damage and in the laboratory for antifeedant activity against leafrollers (Ctenopsteustis obliquana, ...
Constituents of glandular trichomes of Tithonia diversifolia: Relationships to herbivory and antifeedant activity
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
The herbivory activity of the bordered patch larvae (Chlosyne lacinia, Lepidoptera) on leaves of a Brazilian population of Tithonia diversifolia and the antifeedant potential of its leaf rinse extract were investigated. ...
Eudesmanes from Pluchea sagittalis. Their antifeedant activity on Spodoptera frugiperda
(Pergamon-Elsevier Science Ltd, 2008-05)
Eudesmane-type sesquiterpenoids 3α-(2,3-epoxy-2-methylbutyryloxy)-4α-formoxy-11-hydroxy-6,7-dehydroeudesman-8-one (1) and 3α-(2,3-epoxy-2-methylbutyryloxy)-4α,7α,11-trihydroxyeudesman-8-one (2), together with 10 known ...