rollinia mucosa (jacq.) baillon (annonaceae) active metabolites as alternative biocontrol agents against the lace bug corythucha gossypii (fabricius): an insect pest.
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ID: 196622
2018
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Abstract
The lace bug, Corythucha gossypii (Fabricius) is a serious pest affecting over 24 wild and commercially important plant species of the families Annonaceae,Passiflorcae, Caricaceae, uphorbiaceae, and Solanaceae. Thus far, commercial insecticides, such as 0.1 % Dimethoate and 0.1 % Imidacloprid have shown effectiveness against this insect, but no botanical pesticides are available to
control this bug. In the present study, a Rollinia mucosa (Jacq.) Baillon ethanol extract was evaluated as a biological control agent against the lace bug. Through a toxicity assay involving Artemia salina, the median lethal concentration(LC50) of a raw ethanol extract of R. mucosa seeds was determined, as well as
that of its Acetogenin (F1) and Alkaloid (F2) fractions; these LC50 were 0.184,
0.082, and 0.0493 µg/mL, respectively. In addition, with an insecticide assay
on lace bug nymphs, a mortality percentage of 86.67 % at 5 µg/mL after 72h
was observed. These data demonstrate that the R. mucosa seed extract is highly
active. Further chemical characterization studies revealed that the main active
metabolites contributing to extract activity were acetogenins and alkaloids.
| Reference Key |
giraldo-rivera2018universitasrollinia
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|---|---|
| Authors | ;Ana Isabel Giraldo-Rivera;Gloria Edith Guerrero-Álvarez |
| Journal | medecine/sciences |
| Year | 2018 |
| DOI |
10.11144/Javeriana.SC23-1.rmjb
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| URL | |
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