onion leaf miner

[Exfarmer]

Anyone experienced this and suitable chemicals for control?
I am told it is not problem in commercial crops so something must kill it.
Best crop of leeks ever in my garden and find it is full of the damn things!
yes I have my tickets

 

[Green grower]

Chemical called tracer is good but expensive
Would you have any dursban in store b? It would definitely do the job

 

[Bogweevil]

Nothing approved for amateur use. Insect proof netting does good work. Ditto organic producers.

Commercial growers douse crops with insecticides for thrips so leaf miner not a problem. Thrips resistant to many insecticides though.

Dursban withdrawn you naughty person, spinosad ok though:


Product Expiry Date
(notes) Marketing Company Crop(s) (may have different Expiry Dates) see notice Active(s)
Biocure
18413 23/03/2020 Russell IPM Limited leek (outdoor) bacillus thuringiensis kurstaki ABTS-351
Bruco
17919 23/03/2020 Progreen Weed Control Solutions Limited leek (outdoor) bacillus thuringiensis kurstaki ABTS-351
DiPel DF
17499 23/03/2020 Interfarm UK Limited leek (outdoor) bacillus thuringiensis kurstaki ABTS-351
DiPel DF
18874 23/03/2020 Sumitomo Chemical (UK) Plc leek (outdoor) bacillus thuringiensis kurstaki ABTS-351
Exocet
17146 31/10/2021 Matrix Crop Care Limited leek (outdoor) spinosad
Exocet
17792 31/10/2021 Direct Asset Management solutions (uk) ltd T/A: UKChem leek (outdoor) spinosad
Met52 OD
17367 31/10/2021 Fargro Limited leek Metarhizium Anisopliae
Spruzit
18434 28/02/2023 Certis leek (outdoor) pyrethrins and rapeseed oil
Tracer
12438 31/10/2021 Landseer Limited leek (outdoor) spinosad

 

[Exfarmer]

Thanks, had been trying to garden organically but this little blighter was a wake up call

 

[david]

Insect exclusion mesh will do your job organically.

Tracer (spinosad) is approved for use in organic crops, as this insecticide is brewed from a soil bacteria.

 

[Exfarmer]

Insect exclusion mesh will do your job organically.

Tracer (spinosad) is approved for use in organic crops, as this insecticide is brewed from a soil bacteria.

Apparently niether of these are a good option.
Spinosad will indeed control leaf miner , but will need applying every few days . The mesh is not a good growing environment but possibly only real option.

 

[Bogweevil]

The mesh is an excellent growing environment providing useful warmth and shelter, keeps off leek moth too, but might boost humidity worsening rust.

 

[Exfarmer]

The mesh is an excellent growing environment providing useful warmth and shelter, keeps off leek moth too, but might boost humidity worsening rust.

That is what I heard about the rust problem.
Think I will not grow any alliums next year , I realise now why my onions have not been keeping.