| 钟平生1,2;梁广文1;曾玲1.稻田放鸭对褐稻虱种群及主要天敌的影响[J].植物保护,2006,32(2):28-31. |
| 稻田放鸭对褐稻虱种群及主要天敌的影响 |
| Impacts of releasing duck on the brown planthopper population and its major natural enemies |
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| DOI： |
| 中文关键词: 放鸭 褐稻虱 天敌 控制作用 |
| 英文关键词:releasing duck Nilaparvata lugens Stl natural enemies control effect |
| 基金项目: |
| 钟平生1 2;梁广文1;曾玲1 |
| 1.华南农业大学昆虫生态研究室 广州510642;2.广东省惠州学院生命科学系 惠州516007 |
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| 中文摘要: |
| 采用生命表方法评价了在有机耕作稻田放鸭对褐稻虱种群的控制作用及其对天敌的影响。结果表明,稻田放鸭5只/667m2,对褐稻虱种群具有很好的控制作用,可降低褐稻虱种群数量的49.13%,对褐稻虱1~2龄若虫、3~5龄若虫的排除控制作用EIPC分别为2.376 3,1.698 1,即如果排除放鸭因子,褐稻虱1~2龄若虫、3~5龄若虫将分别增长2.376 3倍,1.698 1倍。同时,稻田放鸭对蜘蛛类、寄生性天敌无不良影响。 |
| 英文摘要: |
| The control effect of releasing duck on the brown planthopper(BPH)(Nilaparvata lugens Stl) population and its major natural enemies were evaluated by using the life table method.Five ducks per 667 m~2 had a significant effect against BPH population.It could decrease its number by 49.13%.The exclusive indices of 1-2 instar and 3-5 instar nymph population were 2.3763 and 1.6981,respectively.It indicated that if the ducks were excluded,the numbers of 1-2 instar nymphs and 3-5 instar nymphs would increased by 2.376 3 and 1.698 1 times,respectively.Meanwhile,the released ducks made no damages to spiders and parasitic enemies. |
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