Welcome to the BBRO Aphid Watch mapping site which provides real-time information of aphid activity across the UK sugar beet growing area. The maps depicts the level of green wingless aphids found on the crop and should be used as an early warning system for growers to monitor crops more closely. The traps on BBRO trial sites will be tested to provide an overview of virus across the growing area. The same 20 plants are counted on each site, twice a week.
Threshold
The threshold for treatment is 1 green wingless aphid per 4 plants up to the 12-leaf stage, increasing to 1 per plant between 12 and 16 leaf stage. BBRO recommends counting aphids on a minimum of 10 plants across the field, each week, to establish if the crop has reached threshold. Where to look for aphids:
- On the heart leaves
- Within the folds at leaf margins
- On the underside of leaves
Treatment
Currently 3 sprays are available:
- Flupyradifurone (Sivanto Prime). Sivanto Prime must be applied to the crop no later than the 9 true-leaf stage.
- Acetamiprid (Insyst) Apply up to 16 true leaves.
- Flonicamid (either Teppeki or Afinto – but not both). Apply between 2 and 16 true leaves
