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Título: | Occurrence and control of Omalonyx slugs (Gastropoda, Succineidae), pests of the elephant-grass Pennisetum purpureum (Poaceae) in Rio Preto da Eva, Amazonas |
Título(s) alternativo(s): | Ocorrência e controle de lesmas do gênero Omalonyx (Gastropoda, Succineidae), pragas de capim-elefante Pennisetum purpureum (Poaceae) em Rio Preto da Eva, Amazonas |
Autor: | Garcia, Marcos Vinicius Bastos Arruda, Janine Oliveira Pimpão, Daniel Mansur Garcia, Terezinha Batista |
Palavras-chave: | Gastropoda Mollusca Omalonyx Pennisetum Pennisetum Purpureum Poaceae Succineidae |
Data do documento: | 2012 |
Revista: | Acta Amazonica |
É parte de: | Volume 42, Número 2, Pags. 227-230 |
Abstract: | Slugs of the genus Omalonyx d'Orbigny, 1837 are hermaphrodites, herbivorous, distributed on Neotropical regions, living on aquatic plants, moist soil and terrestrial vegetation close to freshwater systems. The present paper reports the atypical occurrence of O. pattersonae Tillier, 1981 and Omalonyx sp. in an upland area far from any aquatic environment. Both species reported here are sympatric and due to the high populations density and damages caused on leaves of elephant-grass Pennisetum purpureum Schumach, they are recognized as agricultural pests. During the night, the slugs feed on the grass leaves and at the daylight they stayed hidden in the base of stems, near the moist soil surface. The use of hydrated lime distributed over the aggregations of Omalonyx spp. showed to be an effective method to control the populations. The environmental changes in the Amazonian ecosystems for agricultural or urban purposes have promoted the increase of populations of native species that adapt in the new habitat and usually become pests that are difficult to control. |
DOI: | 10.1590/S0044-59672012000200007 |
Aparece nas coleções: | Artigos |
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