Abstract
The present study was aimed to evaluate the effectiveness of Liquidsmoke (LS), Areca-nut extract (AE) and their combination on restriction of golden apple snail (Pomaceacanaliculata) activity, which is known as a major pest in Indonesian rice farms. The experiment conducted under laboratory conditions and each experimental unit consisted of aplastic jar 13 cm in diameter and 15 cm high, which was coverd with gauze which kept 20 snails and fed 2 g/day of the fresh taro leaves, respectively. The treatments were arranged in a completely randomized design with three replications. The results showed that the treatment using LSconcentration of 15% showed moluscisidal action. LS treatment at concentrations of 5 and 10%; Areca-nut extract (AE) treatment at concentrations of 5,10 and 15%; and a mixture of LS and AE at a concentration of 5.10, and 15% proved not to have a significant effect.
Highlights
The Golden Apple Snail (GAS) (Pomacea canaliculata Lamarck) is an invasive species in Indonesia but mostly in Southeast Asia
The materials used in this experiment were teak sawdust from four sawmills, young Areca seeds taken from community forests in Suk raja Sub-district, Tasikmalaya district and five adult golden apple snail GAS that were ready to lay eggs were taken in the rice fields in Taman sari Sub-district, Tasikmalaya City
While the combination treatment was done by mixing Liquid Smoke (LS) and Areca-nut Extract (AE) according to the treatment needs so that the partial concentration of the components can be calculated
Summary
The Golden Apple Snail (GAS) (Pomacea canaliculata Lamarck) is an invasive species in Indonesia but mostly in Southeast Asia. The snail caused serious damaged on more than a thousand hectares of rice-fields per year in Indonesia (Isnaningsih and dan Marwoto, 2011). A number of tropical plant species have been recognized as molluscicidal plants and common put at (Barringtonia racemosa) is one of these. The toxic effects of B. racemose seed kernel extracts on Pomacea canaliculata were evaluated. The lethal concentration at 50% values, in ppm/48 hours, was 94.39 (62.48-142.59), for the extracts withdrawn using methanol. It is assumed that the observed biological effects of the extracts may be due to the sapiens and flavonoids present in the seed (Musman, 2010)
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