| Title | Estimation of fly population density of Bactrocera oleae in olive groves of Crete |
| Publication Type | Journal Papers |
| Year of Publication | 2013 |
| Authors | Varikou, K., Alexandrakis, V., Gika, V., Birouraki, A., Marnelakis, C., & Sergentani, C. |
| Journal | Phytoparasitica |
| Volume | 41 |
| Pagination | 105-111 |
| ISSN | |
| URL | https://link.springer.com/content/pdf/10.1007/s12600-012-0270-0.pdf |
| DOI | 10.1007/s12600-012-0270-0 |
| Citation Key | |
| Keywords | Actual population density,Olive fruit fly,McPhail traps,Sondage,Yellow panels |
| Abstract | Population density of adults of Bactrocera
oleae (Gmelin) (Diptera: Tephritidae) was obtained
from olive trees during a two-year study by means of
two different methods, namely, knock down by an
insecticide applied as a fog (‘sondage’) and trap captures (of yellow sticky panels and McPhail traps baited
with ammonium). First it was concluded that yellow
sticky panel traps give a poor representation of the
olive fruit fly population density of the olive grove.
Yellow panel trap captures were significantly lower
than McPhail’s (September) and than the actual population of B. oleae as recorded in olive tree canopy
(August of 2008).
When only McPhail captures were compared to the
olive fruit fly population in the tree canopy, B. oleae
captures in McPhail traps represented only a small
percentage of the population that was recorded in the
olive tree canopy (July and August of 2009). It was
estimated that traps captured only 0.5% of the flies
present within a radius of 20 m in the studied field
(which consists of approximately 25 trees). However,
during autumn (September), low trap captures of B.
oleae can occur even when the fly population in the
field is near zero. |
| PDF | |
