Question
I have powdery mildew on beans in the greenhouse.  I`m spraying them with 'serinade" an organic materials institue approved spray.  I think the beans are dying, but I don`t want to spread it to other plants in the greenhouse.I`m also increasing the ventilation in the greenhouse, trying not to over water--though I don`t think that`s the problem.  any other suggestions???

Answer
Nancy:

I think the beans have a fungus. I am not familiar with serinade but I would recommend a general purpose fungicide from your local supplier.

Please let me know if you get control of the situation at [email protected]

Best wishes.

Don Battles