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Carrot Fly Forecast 2026

The forecast outputs below are based on weather data provided by Agrii. The forecasts predict the timing of fly activity. They do not predict the number of insects present in the crop, as this depends on the size of the local fly population. For control purposes, we consider that the pest has become active when 10% of the insects have emerged/laid eggs and that the peak of activity has occurred when 50% have emerged/laid eggs. The predictions will change over time depending on weather conditions.

Carrot fly First generation 10% emergence First generation 10% eggs First generation 50% eggs Second generation 10% emergence
Cornwall - Hayle 06-Apr 24-Apr 05-May 15-Jul
Kent - Sandwich 11-Apr 29-Apr 10-May 06-Jul
Suffolk - Ipswich 15-Apr 01-May 17-May 09-Jul
ÌÇÐÄTV, Wellesbourne 16-Apr 29-Apr 21-May 15-Jul
Norfolk, Norwich 17-Apr 02-May 12-May 18-Jul
Lincolnshire - Holbeach 17-Apr 02-May 22-May 15-Jul
Nottingham - Stubton 10-Apr 28-Apr 12-May 18-Jul
Lancashire, Southport 18-Apr 01-May 23-May 19-Jul
Yorkshire, York 14-Apr 03-May 21-May 15-Jul
Perthshire, Scotland 25-Apr 14-May 27-May 25-Jul

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