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Carrot fly forecast 2024

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.

Updated 19 June 2024

Location

First generation

50% emergence

First generation

10% eggs

First generation

50% eggs

Second generation

10% emergence

Cornwall - Hayle

23 Apr 2 May 12 May 16 Jul

Kent - Sandwich

19 Apr 30 Apr 12 May 7 Jul

Suffolk - Ipswich

26 Apr 29 Apr 11 May 9 Jul

Warwick, Wellesbourne

5 May 6 May 15 May 11 Jul

Norfolk, Norwich

2 May 6 May 17 May 15 Jul

Lincolnshire - Holbeach

26 Apr 4 May 12 May 16 Jul

Nottingham - Stubton

23 Apr 3 May 12 May 12 Jul

Lancashire, Southport

1 May 4 May 14 May 16 Jul

Yorkshire, York

25 Apr 4 May 11 May 12 Jul

Perthshire, Scotland

7 May 10 May 22 May 23 Jul