International Journal of Pest Management (1999) 45, 161-166

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W. Sivasubramaniam, S.D. Wratten and C.M. Frampton (1999)
Modifying the location and application rate of insecticides for carrot rust fly (Psila rosae F.) control in New Zealand
International Journal of Pest Management 45 (3), 161-166
Abstract: Carrot rust fly damage levels at different distances from the crop edge into the carrot field were studied. Overall root damage was up to 40% at crop edge, but was 0- 5% at 30 m into the field. Application of phorate granules at reduced-rate only around the edges of carrot fields (10 m-strip), controlled larval damage effectively, requiring approximately 10% of the recommended rate (i.e. 0.22 kg a.i./ha) (i.e. the midfield remaining untreated).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website


Research topic(s) for pests/diseases/weeds:
damage/losses/economics
control - general

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Chamaepsila rosae Carrot (Daucus carota) New Zealand
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