Results 21 to 30 of about 2,856 (184)

Anti-Termite Activity of Melia azedarach Extracts

open access: yesJurnal Sylva Lestari, 2021
Natural preservatives have been widely considered as non-synthetic materials that can prevent the biodegradation of wood due to subterranean termite attacks, namely Coptotermes curvignathus.
Yanico Hadi Prayogo   +6 more
doaj   +1 more source

ANTIFEEDANT ACTIVITY FROM NEEM LEAF EXTRACT (Azadirachta indica A Juss)

open access: yesJurnal Natural, 2018
Antifeedant activity of neem leaf (A. indica A. Juss) has been identified by against Tenebrio molitor bio-indicator. The highest activity was obtained on ethyl acetate extract at 0.5% concentration having Antifeedant Index (AI) of 51.53% and most active ...
Ridha kurniati   +2 more
doaj   +1 more source

Antifeedant Effects of Marine Halogenated Monoterpenes

open access: yesJournal of Agricultural and Food Chemistry, 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 derivative), except for 4, which was isolated from Pantoneura plocamioides.
Argandoña, Victor H.   +9 more
openaire   +4 more sources

Antifeedant and Phagostimulant Activity of Extracts and Pure Compounds from on (Lepidoptera: Noctuidae) Larvae

open access: yesNatural Product Communications, 2014
In this study, the insecticidal and antifeedant activities of compounds from the leaves of Hymenoxys robusta on Spodoptera exigua , also known as armyworm, are reported.
Zaida N. Juárez   +5 more
doaj   +1 more source

Bioactive Semisynthetic Derivatives of ()-(+)-Curcuphenol

open access: yesNatural Product Communications, 2008
New semisynthetic sesquiterpene derivatives ( 3–7, 10 ), together with two known ones ( 8–9 ) were prepared from ( S )-(+)-curcuphenol ( 1 ), isolated from the Caribbean sponge Didiscus oxeata.
Helena Gaspar   +3 more
doaj   +1 more source

Antifeedant and Phytotoxic Activity of Cacalolides and Eremophilanolides

open access: yesZeitschrift für Naturforschung C, 2007
The antifeedant effect of six cacalolides and six eremophilanolides was tested against the herbivorous insects Spodoptera littoralis, Leptinotarsa decemlineata, and Myzus persicae. The test compounds included several natural products isolated from Senecio madagascariensis (14-isovaleryloxy-1,2-dehydrocacalol methyl ether, 4), S.
Eleuterio, Burgueño-Tapia   +3 more
openaire   +2 more sources

Beyond a dual role: how Purpureocillium lilacinum reprograms citrus metabolism for integrated biocontrol and growth promotion

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Plants harbor complex microbial communities that are fundamental to their health and productivity. Among them, endophytic fungi such as Purpureocillium lilacinum establish mutualistic associations, offering dual benefits as plant growth promoters and biocontrol agents.
Sana Bouzembila   +5 more
wiley   +1 more source

Insect Antifeedant Components of Senecio fistulosus var. fistulosus—Hualtata

open access: yesPlants, 2019
From a bioactive methanolic extract of Senecio fistulosus, the antifeedant effects of the alkaloidal and non-alkaloidal fractions were tested against the insects Spodoptera littoralis, Myzus persicae and Rhopalosiphum padi, with the non-alkaloidal ...
Liliana Ruiz-Vásquez   +4 more
doaj   +1 more source

Seedling resistance and chemical defenses against Psylliodes chrysocephala: the roles of seed age and sinapinic acid in Sinapis alba and Brassica napus

open access: yesPest Management Science, EarlyView.
The cabbage stem flea beetle (Psylliodes chrysocephala) is a major pest of winter oilseed rape (Brassica napus). We tested B. napus and Sinapis alba seedlings for feeding resistance and underlying chemical defenses. S. alba was least damaged, while metabolite profiles revealed resistance‐linked compounds, highlighting breeding potential for insect ...
Daniel Rüde   +4 more
wiley   +1 more source

Antifeedant Activity of Neo-clerodane Diterpenoids from Against Colorado Potato Beetle Larvae

open access: yesNatural Product Communications, 2017
Fourteen neo-clerodane diterpenoids isolated from Scutellaria altissima ( Lamiaceae ) were tested for insect antifeedant activity against Leptinotarsa decemlineata Say.
Petko I. Bozov, Yoana P. Georgieva
doaj   +1 more source

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