May 26, 2015

FV 416b cabbage root fly egg counts in Cornwall

The egg counts up to Monday 25th May are as follows - they show the mean numbers of eggs found around a sample of 20 plants per location:

  Helston Hayle Gwithian Truro St Columb
20-Apr 0.2 1.2 0.3 0.3 0.9
27-Apr 0.9 12.0 2.1 1.2 18.0
05-May 0.8 12.2 8.2 4.0 4.1
11-May 2.6 20.1 2.8 3.1 5.7
18-May 4.7 17.1 1.7 5.6 19.8
25-May 2.3 7.4 0.4 0.7 18.4

Rosemary Collier : 26 May 2015 22:12 |  Comments (0) |  Report a problem

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