All entries for Saturday 25 June 2016

Brassica pests at Wellesbourne

Pest pressure on the brasica crops at Wellesbourne is currently very high. We have captured very large numbers of aphids in the suction trap - both Myzus persicae and Brevicoryne brassicae - and they can be found on plants. Some of these have been parastised. The plants are also quite heavily infested with diamond-back moth larvae and one pupa was found yesterday. Other pests include flea beetles and small numbers of cabbage whitefly. One of the diamond-back moth larvae is shown below.

Rosemary Collier : 25 Jun 2016 07:39 |  Comments (0) |  Close comments |  Report a problem