Evaluation of molluscicidal properties of CalotropisgiganteaL. plant extract against golden apple snail (PomaceanaliculataL.) [manuscript]
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Date
2017
Authors
Gia Vanessa T. Balanza
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Abstract
This study was conducted to determine the moluscicide against golden apple snail (Pomaceacanaliculata L.). Ten young golden apple snail and ten adult golden apple snail were used to test the molluscicidal effect of C. gigantea extract. Different symptoms resulting to the death of snails was also observed. Statistical result showed that C. giganteaextract and chemical molluscicide has no significant difference to each other in both young and adult golden apple snail Thus, this indicate that C. giganteaextract has the same killing effect with the chemical molluscicide to eradicate golden apple. The result also showed that the eradication of golden apple snail in C. giganteaethanolextract was influenced by the time of exposure, the longer the exposure period, the higher the majority rate of young and adult golden snails. Behavioral and morphological symptoms of both young and adult golden apple snail were also affected by C. gigantea extract. Paralysation, mucus secretion open operculum, withdrawal of body inside the sell and the change in shell color was observed after treatment application. In addition, most golden apple snailwithdrew into their shells after treatment that indicates nerve poisoning. Thus, the overall result revealed that C. giganteahas the potent molluscicidal capability which can be use as an alternative botanical molluscicide that are much affordable, environmental friendly and less harmful to human.