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Control effects of combination of tobacco waste and quicklime on Pomacea canaliculata
ZHANG Zhi-li, ZHANG Liang-feng, LIU Yi, LI Dong-mei, WANG Kai-tao, HUANG Jing, GUO Jing
HUBEI AGRICULTURAL SCIENCES
2025, 64 (3):
79-85.
DOI: 10.14088/j.cnki.issn0439-8114.2025.03.013
In order to improve the utilization efficiency of tobacco(Nicotiana tobacum L.) waste, the control effects of two kinds of tobacco waste and quicklime with different compounding ratios on Pomacea canaliculata were studied. Tobacco leaf and peduncle were used alone and mixed with quicklime in different proportions (mass ratios of 4∶1, 2∶1, 1∶1, 1∶2, 1∶4, total mass concentration of 0.2 g/L), to explore their effects on survival, behavior, feeding and growth of Pomacea canaliculata. The results showed that the combination of tobacco waste and quicklime had strong toxic effects on Pomacea canaliculata and constrained the feeding and growth of surviving individuals, and the overall trend was that the higher the percentage of quicklime content, the more obvious the inhibition effect on Pomacea canaliculata. In terms of the survival, behavior, feeding and growth of Pomacea canaliculata, the control effects of tobacco leaf on the snails were stronger than that of tobacco peduncle whether used alone or in combination with quicklime, that and more than 95% of the snails died within 14 d. The composite treatment of tobacco leaves and quicklime made it difficult for the snails to eat, and the snails avoided the damage of the two by closing the operculum. Moreover, with the increase of quicklime content and treatment time, the proportion of the snails with closed operculum was growing, even up to 100%. The food intake of Pomacea canaliculata decreased significantly under the single use of tobacco and quicklime and their mixture, meanwhile, the weight growth rate, feeding rate and specific growth rate were significantly inhibited except under the single use of tobacco peduncle. The combination of tobacco waste and quicklime showed controlling effects on Pomacea canaliculata, and the addition of quicklime could improve the utilization efficiency of tobacco waste.
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