작은뾰족민달팽이의 기주 선호성 및 기주에 따른 발육과 수명 = Host Preference of Gray Field Slug, Deroceras reticulatum Muller, and Its Development and Longevity on Host Plants

국문 초록 (Abstract)

작은뾰족민달팽이($Deroceras$ $reticulatum$ M$\ddot{u}$ller)의 채소류에 대한 기주선호성 및 식이기주에 따른 작은뾰족민달팽이의 발육기간과 수명을 조사하였다. 작은뾰족민달팽이의 기주선호성은 배추($Brassica$ $campestris$ L.)에서 가장 높았고, 다음은 오이($Cucumis$ $sativus$ L.)이었으며, 당근($Daucus$ $carota$ L.), 케일($Brassica$ $oleracea$ L. var. $acephala$ D.C), 양배추($Brassica$ $oleracea$ var. $capitata$ L.) 및 비트($Beta$ $vulgaris$ var. Ruba) 간에는 유의성이 없이 낮았다. 산란수는 오이에서 109.6개로 가장 많았으며, 잎들깨에서 10개로 가장 적었다. 부화율도 오이에서 92.4%로 가장 높았으며, 잎들깨에서 62.5%로 가장 낮았다. 알기간은 12~13일로 기주식물에 따른 유의한 차이가 없었다. 유체기간 및 성체수명은 각각 75~111일 및 66~187일 이었다. 그리하여 작은뾰족민달팽이의 알에서 성체수명까지의 총 수명은 오이에서 273일로 가장 길었고, 잎들깨에서 190일로 가장 짧았다.

다국어 초록 (Multilingual Abstract)

This study was conducted to investigate food preference and developmental characteristics of the gray field slug, $Deroceras$ $reticulatum$ M$\ddot{u}$ller (Stylommatophora: Limacidae) using various foods. The food preference of $D.$ $reticulatum$ was most highest on Chinese cabbage ($Brassica$ $campestris$ L., followed on cucumber ($Cucumis$ $sativus$ L.), and significantly low on beet ($Beta$ $vulgaris$ var. Ruba), kale($Brassica$ $oleracea$ L. var. $acephala$ D.C), carrot (Daucus carota L.) and Chinese cabbage ($Brassica$ $campestris$ L.) which were not different significantly. The total number of eggs laid by $D.$ $reticulatum$ was the highest (n = 109.6) on cucumber and the lowest (n = 10.1) on leaf perilla ($Perilla$ $frutescens$ var. $japonica$ Hara). Hatchability was the highest (92.4%) on cucumber and the lowest (62.5%) on leaf perilla. The egg developmental period was not significantly different from 12 days to 13 days among host plants. Juvenile period and adult longevity ranged from 75 days to 111 days and 66 days to 187 days, respectively. Thereby, life span from egg to adult longevity of $D.$ $reticulatum$ was the longest on cucumber with 273 days and the shortest on 190 days on leaf perilla.

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