摘要
梨小食心虫(Grapholitha molesta Busck)是一种重要的果树害虫,早春产卵喜在桃嫩梢叶上,为探明寄主颜色在其产卵选择中的作用,利用彩色卡纸模拟寄主颜色,室内比较了红、粉红、浅粉、橙黄、深黄、浅黄、青绿、深绿、浅绿、蓝、紫、褐色等12种不同颜色基质对其成虫产卵选择性的影响。结果发现:基质颜色对梨小食心虫的产卵选择性有显著影响,其产卵偏嗜浅黄和浅绿色,白色和黑色参比时其产卵选择率分别依次为68.9%、63.8%和64.1%、65.5%,蓝和浅粉色则表现一定的拒避作用,白色和黑色参比时其产卵选择率分别依次为47.7%、40.4%和47.2%、42.7%,且参比色对其产卵选择性影响差异显著。基质颜色对其产卵量亦有显著性影响,无论黑或白色参比,黄、绿颜色上的产卵量均较多,尤其是深黄、深绿和青绿色。基质颜色对1—7日龄梨小食心虫成虫的产卵选择性均有显著影响。白色参比时,2、3日龄蛾对浅绿和浅黄色的产卵选择率显著高于其他颜色;黑色参比时,2日龄时明显偏嗜浅绿色(79.7%),6日龄时明显偏嗜浅黄色(74.8%)。表明寄主颜色在梨小食心虫产卵场所选择中具有重要作用,为其卵期监测和防控中颜色应用乃至进一步揭示其产卵寄主选择机理提供了依据和参考。
The oriental fruit moth （OFM）, Grapholita molesta Busck is one of the major fruit tree pest insects which lay their eggs on the leaves of peach young shoots. In order to find out the roles of the host colour in oviposition orientation, we conducted a comparative study to reveal effects of 12 different colours （red, pink, light pink, orange yellow, deep yellow, light yellow, green, deep green, light green, blue, purple, brown etc） on oviposition preference of adults using the color cardboard to simulate the host colours outdoors. The results have showed that colour affected the oviposition preference significantly. OFM preferred to the light yellow and light green laying eggs, with oviposition preferences of 68.9% （white reference） and 63.8% （black reference） on light yellow cards, 64.1% and 65.5% on light green cards. OFM showed a certain avoidance to blue and light pink cards, with oviposition preferences of 47.7% and 40.4% on blue cards, 47.2% and 42.7% on light pink cards. and the referance colours can significantly affect the oviposition preference. Colour also affected the fecundity significantly. whether while or black referance, the eggs spawed on yellow and green cards were much more than others, especially the deep yellow, deep green and green cards. Colour affected the oviposition preference of 1-7 days adults significantly. 2 and 3 days of OFM preferred to the light yellow and light green laying eggs on white reference, with oviposition preferances of 86.7% and 91.7%. On black reference, 2 day moth preferred light green laying eggs, with oviposition preferance of 79.7% and 6 day moth preferred light yellow, with oviposition preferance of 74.8%. The study showed that host colour play an important role in the spawning site selection, and provide bases and references for the application of colour in the monitoring and prevention and control of egg stage and even further reveals the spawning host selection mechanism of OFM.
出处
《生态学报》
CAS
CSCD
北大核心
2014年第11期2971-2977,共7页
Acta Ecologica Sinica
基金
国家公益性行业(农业)科研专项项目(201103024)
河北省自然科学基金(C2010000680)
关键词
梨小食心虫
颜色
产卵选择性
日龄
Grapholita molesta Busck
colour
oviposition perferance
day
