All entries for Friday 25 April 2014

Pest update

Since Tuesday we have captured:

• 112 carrot flies on traps in the overwintered carrots (3 traps)
• 37 carrot flies on traps in newly-emerged carrots (3 traps)

In the 3 water traps:

• 41 male and 14 female cabbage root flies
• 168 bean seed flies
• 7 pollen beetles

We collected a total of 7 cabbage root fly eggs from around 15 cauliflower plants (planted 15 April).

We caught one diamond-back moth (2 pheromone traps)

We have pheromone traps out for European tarnished plant bug and common green capsid - and caught nothing.

Rosemary Collier : 25 Apr 2014 17:35 |  Comments (0) |  Close comments |  Report a problem

Rothamsted suction trap captures

The 3rd issue of AHDB Aphid News has just been released:ahdb_aphid_news_20140425.pdf

The numbers of early aphids in our suction-trap samples have not significantly increased during Bulletin Week 3: 14/4-20/4, but the spread across the country is widening.

• Four peach–potato aphids were caught this week (Preston, Broom’s Barn, Writtle and Wye). The first arrival at Preston was six weeks earlier and at Writtle two weeks earlier than the 10-year mean.
• Two potato aphids (Macrosiphum euphorbiae) were caught, including a first arrival at Hereford, three weeks earlier than the 10-year mean.
• This year’s first pea aphid (Acyrthosiphon pisum) was caught at Wye, a month earlier than the 10-year mean.
• No cabbage aphids (Brevicoryne brassicae), or willow carrot aphids (Cavariella aegopodii) were caught this week.

Rosemary Collier : 25 Apr 2014 15:27 |  Comments (0) |  Close comments |  Report a problem