Miraflor B Sabillo | Edito B Sumile
Discipline: Food and Beverage Production
The toxicity of different concentrations of Jatropha curcas Linn. extracts were evaluated -against the eggplant mealy bug, Ferrisia virgata. One hundred percent (100%) mortality of F. virgata was attained 54 hours after application in all treatments with J. curcas. A mixture of 2 ml extract plus 50 ml distilled water showed significantly highest insect mortality 6, 12, and 18 h after treatment. Changes in color from whitish to yellowish and eventually to dark brown; shrinkage of the body; and straightening of the legs were some of the observable postmortem characteristics of mealy bugs after treatment with the extracts.
ISSN 2984-7125 (Online)
ISSN 2244-4432 (Print)
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