All entries for Friday 19 July 2019

Pest update from Wellesbourne

When the water traps in the swede plot were checked today there were:

• 70 male and 70 female cabbage root flies
• 34 bean seed flies
• 20 flea beetles
• 293 pollen beetles
• 65 cabbage stem weevils
• 25 cabbage stem flea beetles
• 4 cabbage seed weevils
• 1 small white butterfly
  

There were 58 carrot flies on the 3 sticky traps in the new plot for 2019.

371 cabbage root fly eggs were laid between 16 and 19 July (around 15 plants).

0 diamond-back moths and 0 turnip moths were captured. No moths were captured in our other pheromone traps (silver Y moth, cabbage moth). There are 2 traps for each species.

We also caught 8 diamond-back moths on 5 carrot fly traps.

Rosemary Collier : 19 Jul 2019 16:24 |  Comments (0) |  Close comments |  Report a problem

AHDB Aphid News

The latest edition of AHDB Aphid News has been released for the week ending 14th July.

• Numbers of peach–potato aphids captured in the network of suction traps increased in Northern Britain.
• Potato aphid numbers almost halved compared to last week, with increases at only Gogarbank and Preston.
• Cabbage aphid numbers also declined overall.
• Single currant–lettuce aphids were recorded from Scottish sites at Inverness and Ayr.
• Willow–carrot aphid numbers decreased overall.
• Pea aphid numbers increased to 144% of those captured last week, with a continued hotspot at Dundee.
• The total number of black bean aphids captured decreased overall.

Rosemary Collier : 19 Jul 2019 16:20 |  Comments (0) |  Close comments |  Report a problem