June 18, 2013

Another update from Wellesbourne

Today the team have been looking for pests on plants. Andy checked out the untreated plots in the Brussels sprout trial - which is part of the SCEPTRE project. There were hardly any pests on the foliage - a few peach-potato aphids and one diamond-back moth caterpillar - which ties in well with the absence of these pests in our traps.

Marian counted the willow-carrot aphids in our carrot fly monitoring plot. There were 44 winged aphids and 55 wingless aphids on 3 x 0.5 m lengths of row - an increase on last week. There was also one parasitised aphid (parasitic wasp). The usual pattern of Wellesbourne is for the level of parasitism to increase over time until it finally wipes the population out.

We're continuing to collect large narcissus flies.....


- No comments Not publicly viewable


Add a comment

You are not allowed to comment on this entry as it has restricted commenting permissions.

June 2013

Mo Tu We Th Fr Sa Su
May |  Today  | Jul
               1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30

Search this blog

Tags

Galleries

Most recent comments

  • Update – Wellesbourne, 09–15/10/2017, Suction, 12 caught, 0% carrying TuYV Kirton, 09–15/10/2017, Su… by Angela Hambidge on this entry
  • Update Spalding 28/9 02/10/2017 YWT 12 caught, 25% carrying TuYV. by Angela Hambidge on this entry
  • Update – Wellesbourne 02 – 08/10/2017 Suction, 11 caught, 14% carrying TuYV 09 – 12/10/2017 YWT, 1 c… by Angela Hambidge on this entry
  • Update – Wellesbourne 11/9 – 17/9/2017 Suction trap 1 aphid 0% carrying TuYV Wellesbourne 21/9 – 25/… by Angela Hambidge on this entry
  • Update – Kirton, Lincolnshire 28/8–03/09/2017 Suction trap 4 aphids 33% carrying TuYV Spalding, Linc… by Angela Hambidge on this entry

Blog archive

Loading…

HDC

Not signed in
Sign in

Powered by BlogBuilder
© MMXXIV