[Totty]

As i said before, i am as organic as is feasable for our tastes! has anybody got any suggestions for a suitable spray and were its available from?

Totty

[mumofstig]

Spray, against blight?
Bordeaux mixture is an organic spray, the Bayer one is very similar, but both mean spraying as a preventative measure rather than waiting for blight to strike, by then it is too late (see link in DDs post )

[DD.]

When it comes to Bordeaux mix, despite it being classed as organic, there are a lot who have reservations.

Have a look at this blog, you may recognise one of the contributers.

http://blog.gardenersworld.com/2010/04/16/potato-blight-and-bordeaux-mixture/

I only spray when necessary after studying the information I can access. My take on it is given a choice between spraying and having no produce, there's no contest.

[Poolcue]

I grow tomatoes in the garden and for the first time last year they got blight.This was the first year that I grew potatoes in containers in the garden.Lesson learnt don't grow the two anywhere near each other.Tomatoes in the garden potatoes down the allotment.

[DD.]

The implication there is that the potatoes either brought in or attacted the blight. It could have blown in from anywhere.

[Totty]

Preventing a pest/disease, taking hold of a crop that is expensive to buy in the shops and have far less quality is the aim here! Bordeux mixture it is!

[DD.]

Think I'd sooner use the Dithane, (or it's replacement),  than tip copper all over my toms!

[mumofstig]

the new Dithane replacement is copper as well DD, as discussed last year.

http://chat.allotment-garden.org/index.php?topic=58665.msg687647#msg687647

Unless they find something new, it's what we'll all be using when pkts of old style Dithane run out

[DD.]

 

I've got a few years stock of the old stuff unless they make it illegal!

[Totty]

I have been given a packet of "Murphy Traditional Copper Fungicide" is this the same sort of thing that you speak of. On the packet it states that you need to spray at the first sign of blight. What do you use to stop it before it starts?

Totty

[DD.]

It's all in the earlier links and posts.

[NaomiNome]

Yes,  growing under cover guards against blight. I've seen a few people rig up plastic roofs over their tomato rows (remember the scene in the Godfather when Vito dies among the tomatoes? plastic sheets all over the tops ) but I don't think I could rig anything that would withstand the winds on my plot.

I opt to grow in pots near the house (semi-sheltered?) and subscribe to blightwatch (it's free) who send me an alert whenever conditions are right for blight. When I get an alert I spray with 50/50 milk/water, which seems to slow infection but never stops it completely...