摘要
研究了蜂蜜、玉米花粉、大豆花、褐飞虱蜜露和黄脊飞虱蜜露对稻虱缨小蜂寿命、寄生能力以及寄生行为对稻虱缨小蜂寿命和存活率的影响.结果表明,蜂蜜、玉米花粉、褐飞虱蜜露和大豆花均能明显延长稻虱缨小蜂的寿命,并且显著地提高了对褐飞虱卵的寄生能力,其中蜂蜜最有效,大豆花次之.玉米花粉和褐飞虱蜜露这两种营养源以玉米花粉(水和褐飞虱蜜露+水的形式)对提高稻虱缨小蜂寿命最有效,而单一玉米花粉、花粉液、褐飞虱蜜露稀释液和纯褐飞虱蜜露均不能延长稻虱缨小蜂寿命.黄脊飞虱蜜露对稻虱缨小蜂的寿命和寄生能力均无影响.寄生行为对稻虱缨小蜂的寿命基本无影响,但致使其40～48h内的存活率提高,此后的存活率降低较快.在稻田周围的作物和植被上调查到约10种飞虱.非稻田生境能为稻田寄生性天敌提供寄主和食物,是理想的庇护所,对保护和提高稻田天敌种群数量,提高稻田天敌的生物控制作用.
This paper dealt with the effects of honey, corn pollen, soybean flower, and honeydews excreted by Nila-paruatae lugens and Toya spp. on the longevity and parasitic ability of A. nilaparvatae. The results showed that the longevity of A. nilaparvatae was obviously extended, and its egg production on N. Lugens was significantly increased when fed with those nutrient-rich diets except the honeydew excreted by Toya spp. Corn pollen and the honeydew excreted by N. lugens worked only in the forms of pollen (water and honeydew) water. The longevity of N. lugens was not affected by its parasitic behaviors, but its survival rate was higher within 40 - 48 hours, and then decreased rapidly. About ten species of plant hopper, the host of Anagrus spp., were found in non-rice habitats, which provided shelter and afforded foods to the parasitoids of rice pests, and contributed to protecting the natural enemies and enhancing the biological control in the rice system.
出处
《应用生态学报》
CAS
CSCD
2003年第10期1751-1755,共5页
Chinese Journal of Applied Ecology
基金
浙江省青年人才专项基金(RCZX97.8)
瑞典国际科学基金(AC/13328
c13318-1)
国际水稻研究所综合防治协作网资助项目
关键词
营养源
稻虱缨小蜂
寿命
寄生能力
存活率
Nutritional resource, Anagrus nilaparvatae, Longevity, Parasitic ability, Survival rate.
