I've been having some success with this one. Its not perfect but it does a pretty good job so far this year.
In a 5 litre sprayer add:
Half a cup of milk for the mildews
A tablespoonful of baking powder dissolved in a cup of warm water as backup
I cup of wormwood tea to repel boarders
15 ml of Neem oil emulsified in half a cup of warm water to ward off those that are not repelled
a splosh of Canola oil also emulsified to help it all stick to the plant… Continue