Downy Mildew

[jackyspratty]

I have a 2 Diva F1 cucs and 2 Eltoro F1, both in a polytunnel.

Can you tell me if this is Cucumber mosaic virus? Its appeared very suddenly. Yellow mottling, changing to brown, sort of transparant when you hold the leaf up to the light.

I can see no pests.

Do I need to destroy them? The El Torro is not as bad and I have just harvested our first cucumber

Fingers crossed!

[taff]

possibly downey mildew.

[jackyspratty]

Yes Taff (thankyou again!) i think that is it?

I have searched it and the symptoms are the same. Can I traet it or should I bin it?
Ive had a search but im not clear. Ill have another litle furtle about see what comes up.

[jackyspratty]

downey mildew

My cucumbers have downey mildew. See thread and pics in vegging out
Can I treat them, or do I have to get rid of them?!

[FionaH]

Just googled as I have this on my courgettes. Take off affected leaves and burn them

[zazen999]

My cucumbers have downey mildew. See thread and pics in vegging out
Can I treat them, or do I have to get rid of them?!

I've merged your 2 threads......just to keep them all together - and moved to WPD section.

[jackyspratty]

Thanks Zaz!

Also found this for the treatment. So as well as removing and burning infected leaves we could try this?

Materials Methods of preparation How to use Target pests
Garlic bulb extract
(Vijayalakshmi; et.al, 1999: pp. 1-23)

85 grams of chopped garlic
50 ml of mineral oil
(kerosene or vegetable oil)
10 ml of soap
950 ml of water
Strainer
Bottle container



Add garlic to vegetable oil.
Allow mixture to stand for 24 hours.
Add water and stir in the soap.
Store in bottle container.



Dilute 1 part of the emulsion
with 19 parts of water (for example, 50 ml of
emulsion to 950 ml of water).
Shake well before spraying.
Spray thoroughly on the infested plant,
preferably early in the morning.


For use on
American bollworm Armyworm
Cotton stainer
Onion thrips
Potato tuber moth
Root knot nematode
Sugarcane shoot borer
Bacterial diseases
Anthracnose
Downy mildew