Topic: powdery mildew on grapes

[petengade]

When thinning the grapes noticed powdery mildew, how do I treat it please? did a google and saw ''spray with watered down milk'' any other tips? Thanks in anticipation.

[Old bird]

I use  baking powder  about a teaspoonful in 1/2 litre water.  I use it to spray  indoor courgettes which get mildew on their leaves cucumbers and aubergines also to stop red spider mite which it is also very successful in getting rid of!

good luck

O B

[petengade]

Thanks Oldbird will try that

[Vinlander]

I use  baking powder  about a teaspoonful in 1/2 litre water.  I use it to spray  indoor courgettes which get mildew on their leaves cucumbers and aubergines also to stop red spider mite which it is also very successful in getting rid of!

good luck

O B

Does it work better than bicarb (as a foaming cleanser  ;))?

If so it might be worth making up with Potassium bicarb (which is supposed to be better).

I only get mildew on the actual grapes of King's Ruby (the only variety I have without much labrusca genetics), and I find propping the bunch out away from any surface (including their own leaves) helps a lot.

Cheers.

[petengade]

All noted, many thanks