Journal of FARM SCIENCES, Vol 20, No 2 (2007)

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Evaluation of Attractant Waste Material and Bait for the Management of Giant African Snail, Achatina fulica Bowdich

R. Ravikumar, Mohan I. Naik, M. Manjunatha, S. Pradeep

Abstract


In a study conducted during last week of October, 2004 the highest number of snails were attracted to papaya stem waste followed by vegetable waste, fishmeal waste, areca leaf waste, banana sheath waste, sugarcane bagasse, leaf litter and FYM. Of the different chemicals and baits tested along with papaya stem waste, metaldehyde at different dosages performed well.  On the second day of application highest mortality (87.67%) was observed at 6 kg metaldehyde bait  per acre which was on par with 2 (86.13%) and 4 kg (87.16%) metaldehyde bait per acre. On the fourth day, the highest mortality (73.44%) was recorded with 4 kg metaldehyde bait per acre, which was on par with 2 (68.37%) and 6 (67.74%) kg metaldehyde bait per acre. On the sixth day of application the highest mortality was recorded with 6 kg metaldehyde bait (55.71%) per acre, which was on par with 4 kg metaldehyde bait (53.09%) per acre.  The present study clearly indicated that only 2 kg metaldehyde bait per acre was enough to get the maximum mortality of snails.  Hence the dosage of 2 kg metaldehyde bait (2.5%) per acre could be strongly recommended.

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