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The problem                                                                                                                                                                                        

Crops at GS 55 – 59 are most susceptible to damage from orange wheat blossom midge
Use pheromone traps or yellow sticky traps to monitor adult activity and provide a  helpful early warning.  Finding 30 or more male midges per day in pheromone traps indicates a risk to crops in the following week, when females can be expected to be laying eggs.  This is the cue to start checking crops at dusk for female midges and to assess whether or not treatment is needed
HGCA advised treatment thresholds are one midge per three ears in susceptible feed crops and one midge per six ears in milling and seed crops
Biscaya® reduces damage caused by orange wheat blossom midge.

What to do

Biscaya can also be used at lower water volumes for a faster work rate
Proven in IPM programmes means low impact on beneficial insects
Wide range of tank-mix partners
Apply Biscaya at 0.4 L/ha during ear emergence as soon as the threshold is reached
Shake the container well before use to disperse the OD formulation

How does it work?

No LERAP or edge restriction means protection right up to the field edge
Can you afford to leave an unsprayed buffer?

Active substance

Thiacloprid 240g/L


Oil Dispersion (O-TEQ)



Pack size

5 L

Maximum individual dose

0.4 L/ha

Maximum total dose

0.4 L/ha

Latest time of application

Up to the end of flowering (GS 69)

Water volume

200 – 400 L/ha






In 9 trials from 2004 to 2010, Biscaya averaged over 60% control of orange wheat blossom midge larvae

(mean of 9 ADAS and Bayer CropScience trials) pyrethroid = deltamethrin or lambda-cyhalothrin

Better work rate, better control and better yields from Biscaya (used at 100 L water /ha)

(source Bayer CropScience trial cv Cordiale 2010)

Orange wheat blossom midge control at different timings ADAS, High Mowthorpe 2009

Too early = At first catch Optimum = At threshold Too late = Threshold +6 days