All entries for Thursday 13 April 2017
April 13, 2017
Pest update 13th April
Between Monday and today we caught:
On 3 sticky traps:
- 9 carrot flies
- 2 Orthops spp.
In 4 water traps - 3 near our overwintered swede plot and 1 near some oil seed rape:
- 70 male cabbage root flies and 10 females
- 212 bean seed flies
- 34 pollen beetles
- 2 flea beetles
We also recovered 16 cabbage root fly eggs from the soil around 15 cauliflower plants - our first eggs of the year.
AHDB Aphid News released
The latest edition of AHDB Aphid News has just been released for the week ending 9th April.
With regard to potential pest aphids of horticultural crops then suction trap captures were as follows:
- A single peach–potato aphid was caught this bulletin week at Starcross, making three in the last 7 weeks at this site.
- Single willow ̶ carrot aphids were caught at Broom’s Barn and Silwood, both were first arrivals and two to three weeks earlier than the 10-year means.
- Single pea aphids were caught at Broom’s Barn and Silwood, both were first arrivals and three to five weeks earlier than the 10-year means.
- No potato aphids (Macrosiphum euphorbiae), mealy cabbage aphids (Brevocoryne brassicae) or black bean aphids (Aphis fabae) have been caught so far this year.
- The shallot aphid (Myzus ascalonicus) is the most numerous aphid species in our suction-trap samples to date.