OBM

[MrNoo]

Walking the dogs this eve, WW is stuffed full of them, clouds and clouds, struggled to not breath them in. Skyfall so not stressed but they werent there yesterday.

 

[Flat 10]

f**k. Growing resistant varieties here but hit hard by lemon blossom midge last bad year. Question is is it worth treating and if so what with? @John Slejpner ?

 

[teslacoils]

Yikes. Wouldn't have thought it was moist or still enough for them this year.

 

[yellow belly]

Too cold here a couple of weeks ago and too dry
but also now always grow resistent variety as there is no effective chemical control

 

[MrNoo]

Yikes. Wouldn't have thought it was moist or still enough for them this year.

Well, it obviously is as here en masse

 

[John Slejpner]

fudge. Growing resistant varieties here but hit hard by lemon blossom midge last bad year. Question is is it worth treating and if so what with? @John Slejpner ?

50ml of Hallmark...which is both max allowed iirc and only just enough to do the job.
02FF / 100 l water / XChange + Kantor

is what i am doing - 8pm onwards

Some will say the XChange and Kantor is overkill....i will say they probably make a difference and i am in a hotspot and can't bugger about.

 

[Hindsight]

Yikes. Wouldn't have thought it was moist or still enough for them this year.

If the little beggars can burrow out of the concrete that passes as soil in South Lincolnshire I shall truly believe in God and that we have sinned and need to repent, given the weather since June 11 last year. Nothing would surprise me. Mind blossom midge damage on a 4 t/ha crop cannot be that bad!!

 

[Adeptandy]

If the little beggars can burrow out of the concrete that passes as soil in South Lincolnshire I shall truly believe in God and that we have sinned and need to repent, given the weather since June 11 last year. Nothing would surprise me. Mind blossom midge damage on a 4 t/ha crop cannot be that bad!!

Concentration/ear could be worse in a thin struggling crop

 

[Clive]

if we have any they will die of thirst before they get sprayed !

 

[FarmerBruce]

What is the threshold for little beggars. Seems to be plenty here now. ?

 

[yellow belly]

Not finding many here
resistent variety

 

[Shutesy]

What is the threshold for little beggars. Seems to be plenty here now. ?

Taken from the AHDB info page:

• For susceptible feed crops, the treatment threshold is one midge for every three ears*
• For susceptible milling and seed crops, the treatment threshold is one midge for every six ears*
• *All susceptible crops should be treated if a cloud of midges is observed when parting the crop

https://ahdb.org.uk/wheat-blossom-midges

 

[ajd132]

Niab said yesterday you only get maximum 26% control from pyrethroids. Waste of time spraying, don’t kill the beneficials. Insecticides are history.

 

[Gong Farmer]

Niab said yesterday you only get maximum 26% control from pyrethroids. Waste of time spraying, don’t kill the beneficials. Insecticides are history.

Can also get much higher levels of control from the 'beneficials', apparently.

 

[ajd132]

Can also get much higher levels of control from the 'beneficials', apparently.

Yeh but don’t tell people everything they need to pay for membership!

 

[rob1]

Ive never had any OBM problems, but then Ive never looked as I wont use insecticides so little point giving myself something to worry about by looking

 

[John Slejpner]

Niab said yesterday you only get maximum 26% control from pyrethroids. Waste of time spraying, don’t kill the beneficials. Insecticides are history.

I would like to see their methodology.

 

[ajd132]

I would like to see their methodology.

They do trials for it. And they back up what I’ve observed on farm.

 

[John Slejpner]

They do trials for it. And they back up what I’ve observed on farm.

At the optimum 9 pm i observe better than 90%

 

[Gong Farmer]

At the optimum 9 pm i observe better than 90%

Impressive, but our data was based on % reduction of larvae in the ear. Little help wiping out all the adults if they've already laid eggs.