湿地松粉蚧蛹寄生蜂火炬松短索跳小蜂生物学特性  

Bionomics of Acerophagus coccois Smith,an important parasitoid of Oracella acuta( Lobdell) pupa

作　　者：潘志萍[1] 方天松 余海滨 

机构地区：[1]广东省昆虫研究所广东省野生动物保护与利用公共实验室广东省农业害虫综合治理重点实验室,广东广州510260 [2]广东省林业有害生物防治检疫管理办公室,广东广州510173

出　　处：《中国森林病虫》2015年第3期14-17,共4页Forest Pest and Disease

基　　金：广东省林业科技创新专项资金项目(2013KJCX015-03)

摘　　要：火炬松短索跳小蜂Acerophagus coccois Smith是湿地松粉蚧Oracella acuta（Lobdell）的原产地重要天敌。观察了火炬松短索跳小蜂羽化、交配、产卵、活动、成虫寿命和繁殖等生物学习性。结果表明,火炬松短索跳小蜂成虫寿命受温度和营养条件影响很大,雌雄蜂均需要补充营养,补充营养亦可显著延长成虫的寿命。以喂食5%蜜糖水、4~6℃保存的成虫寿命最长,雌虫平均寿命9.17d,雄虫平均寿命8.32 d;其次是供带寄主的松梢,雌雄虫平均寿命分别为5.50 d和5.43 d;平均寿命最短的是仅喂食5%蜜糖水的处理,雌雄虫平均寿命分别为4.12 d和3.98 d。室内繁殖试验表明,火炬松短索跳小蜂在广东省室内条件下能够寄生湿地松粉蚧,但子代蜂数量较少,寄生效能需进一步研究。Acerophagus coccois Smith is an important natural enemy of Oracella acuta（ Lobdell） in the USA. It w as introduced from USA to China in 1996 for biocontrol of O. acuta. The bionomics including emergence,mating,oviposition,eating behaviors,adult longevity and propagation of the exotic parasitoid w ere observed in the lab. Results show ed that the longevity w as affected by temperature and nutrient conditions. Both male and female w asps need supplemental nutrition w hich could significantly prolong the longevity of adults. The longevity of the female and male fed w ith 5% honey solution and kept under the condition of 4-6 ℃ w as the longest,w hich w as 9. 17 days and 8. 32 days respectively. The mean longevity of mated female and male adults given tw igs w ith some loblolly mealybugs w as the second,w hich w as 5. 50 and 5. 43 days respectively. If fed w ith 5% honey w ater only,the longevity of the female and male w as 4. 12 and 3. 98 days respectively. In the indoor test of reproduction,A. coccois w as able to produce offspring in Guangdong,but less in quantity. So,parasitic effectiveness of A. coccois need further research.

关 键 词：火炬松短索跳小蜂 湿地松粉蚧 生物学 繁殖 

分 类 号：S763.306.4[农业科学—森林保护学]