التفاصيل البيبلوغرافية
| العنوان: |
The effects of non-host plant essential oil volatiles on the behaviour of the pollen beetleMeligethes aeneus. |
| المؤلفون: |
Mauchline, Alice L., Osborne, Juliet L., Martin, Andrew P., Poppy, Guy M., Powell, Wilf |
| المصدر: |
Entomologia Experimentalis et Applicata; Mar2005, Vol. 114 Issue 3, p181-188, 8p |
| مصطلحات موضوعية: |
ESSENTIAL oils, HOST plants, MELIGETHES, BRASSICA, LAMIACEAE, BIOLOGICAL assay |
| مستخلص: |
The use of semiochemicals for manipulation of the pollen beetleMeligethes aeneus(Fabricius) (Coleoptera: Nitidulidae) is being investigated for potential incorporation into a push-pull control strategy for this pest, which damages oilseed rape,Brassica napusL. (Brassicaceae), throughout Europe. The response ofM. aeneusto non-host plant volatiles was investigated in laboratory assays to establish whether they have any effect on host plant location behaviour. Two approaches were used. First a novel, moving-air bioassay using air funnels was developed to compare the response ofM. aeneusto several non-host plant essential oils. The beetles avoided the host plant flowers in the presence of non-host volatiles, suggesting thatM. aeneususes olfactory cues in host location and/or acceptance. The results were expressed as‘repellency values’ in order to compare the effects of the different oils tested. Lavender (Lavendula angustifoliaMiller) (Lamiaceae) essential oil gave the highest repellency value. In addition, a four-arm olfactometer was used to investigate olfactory responses, as this technique eliminated the influence of host plant visual and contact cues. The attraction to host plant volatiles was reduced by the addition of non-host plant volatiles, but in addition to masking the host plant volatiles, the non-host volatiles were avoided when these were presented alone. This is encouraging for the potential use of non-host plants within a push-pull strategy to reduce the pest colonisation of crops. Further testing in more realistic semi-field and field trials is underway. [ABSTRACT FROM AUTHOR] |
|
Copyright of Entomologia Experimentalis et Applicata is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
