Spraying fungicide with frost on the trees

General Fruit Growing
1

I sprayed Captan/Immunox on my apple and cherry trees today. The trees had frost on them. Today’s temperature high is 57F and frost has already melted away. Usually I would have waited until it warmed up but the winds are expected to be 15 mph with higher gust speeds and of course tomorrow it’s going to rain :slight_smile: . So I went ahead and sprayed them.

My question is there potential problems with doing this that I have over looked? Also has anyone else sprayed trees with frost on them and did you have any problems either with the trees, the spray equipment, or the mixing process?

2

You will have dilution of the chemical on the leafs surface and portion will run off of the surface with the frost as it melts.

3

Good point. Thanks for the reply.