Publications by authors named "Kesavan Amala"
Green pesticides, derived from natural sources, have gained wider attention as an alternative to synthetic pesticides for managing polyphagous pests, such as Spodoptera litura. In this study, the methanolic flower extract of Nyctanthes arbor-tristis (Mx-Na-t) was subjected to chemical screening, and 3-hydroxy-1,2-dimethyl-4(1H)-pyridone (3H-dp) and tyrosol (Ty-ol) were identified as the major derivatives. The toxic effects of Mx-Na-t (500 ppm) were highest in third-instar S.
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- * GC-MS analysis identified nine major compounds, with HDa showing the highest peak area percentage (14.63%), and indicated that these extracts and their derivatives had significant larvicidal effects that varied with dosage and larval stage.
- * Sublethal doses of the extracts affected larval development, adult lifespan, and enzyme activity, resulting in notable morphological changes in gut tissues, highlighting their potential as effective pest management agents in agriculture and public health.
Target Activity of (Hypocreales: Clavicipitaceae) Fungal Strains against Dengue Vector (Linn.) and Its Non-Target Activity Against Aquatic Predators.
Sengodan Karthi Prabhakaran Vasantha-Srinivasan Raja Ganesan Venkatachalam Ramasamy Sengottayan Senthil-Nathan Kesavan Amala
J Fungi (Basel)
September 2020
The present investigation aimed to determine the fungal toxicity of (My-It) against the dengue mosquito vector L. and its non-target impact against the aquatic predator . Lethal concentrations (LC and LC) of My-It were observed in 2.
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