南京地区稻田福寿螺的发生动态及习性调查与分析

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中图分类号：S435.112 文献标识码：A 文章编号： 1000-4440（2026）03-0513-08

Abstract：Asanotorious invasive species，Pomacea canaliculata has posedasignificantthreat toriceproduction in Nanjing area.From 2022 to 2023，we investigated the occurrence dynamics，oviposition preferences in field conditions，and analyzed the damage to rice seedlings caused by P .canaliculata inLishui District，Nanjing City. The results showed that，（1）in irrigationditches，the egg-laying amount of P .canaliculataonbamboo stripswas positively correlated with daily minimum temperature.（2） Inricefieldswith Zizania latifoliacultivationand bamboostrips， P .canaliculata preferentiallylaid eggs onbamboo strips，and no significantdiference in eggquantity was observed among different Z . latifolia varieties.（3）Compared to the center of the field， P .canaliculata tended to lay eggs on bamboo strips nearthe field ridges.（4）Cropresidue atraction experiments demonstrated that watermelonresidues or watermelontomato mixtures effectively attracted P . canaliculata in fields.Damage assessment revealed the highest P .canaliculata densities （6 and 13 adults per five m2 ）were near paddy inlets，resulting in 1/5 and 1/3 seedling loss，respectively，whereas central areas showed a lower density（two adults per five m2 ）andnegligible seedling damage（O-2 plants）.Based on these findings，future management strategies should prioritizeoptimizing thedesignand placement of atraction （elimination）devices near ridgesor field corners，enhancingmonitoringandisolation measuresat paddy inlets，and integrating winterspring dredging to establishan eco-friendly integrated management system.This studyprovides a scientific foundation for precision control of P .canaliculata inNanjing rice fields.

Key words：Pomacea canaliculata；occurrence dynamics；oviposition habits； Oryza sativa；atractant-based trapping

福寿螺（Pomaceacanaliculata）原分布于南美洲亚马逊河流域，因其具有较强的繁殖能力、广泛的食性以及较强的环境适应性等生物学特性，已被学术界定义为恶性人侵物种。（剩余7209字）