Spray the apples now you still got a chance that is a NG on the peaches can't spray in bloom.

Do not get your info only on the internet, read the label carefully- you don't want to spray green tissue within about 24 hours of a freeze- one side or the other, as I recall but I will be reading the label again to refresh my memory before I do any spraying.

I manage an orchard of old apple trees that lost a years crop and some trees lost some huge scaffold branches because some idiot sprayed green tissue when there was frozen dew on the ground. Thank God I wasn't the idiot...THAT TIME- it was an employee of a very well known tree care company.

If you are using horticultural oil and the label says it's good on green tissue then you are better off spraying at some point from half inch green to tight cluster for scale and mites. Aphids are apparently best to spray at green tip.

The only thing I spray for when trees are dormant is pear trees for pear blister mite.

There was another question about oil recently that covered a lot of the info on the subject if you search for it.

I think you're a bit late and chalk it up to better scheduling next year.

Actually you can use oil in the mix at petal fall if there is any point- just don't put any Captan in the mix. I've controlled scale that was damaging apple trees with this timing because the customer only wanted to pay for two sprays and up here we can usually get sound apples with only two sprays of the right compounds.

If the flowers aren't showing too much pink it is not too late for a delayed dormant spray either at 1% of horticultural oil to water.

Thanks harvestman!

When I read your first post I slapped myself on the head and said, DUH!

The container instructions, which I'm bad about reading until I get ready to use, says it is OK to use now!

rayrose, Thanks for your reply, but the scheduling was out of my hands. I'm on call 24-7-365. I'm a maintenance electrician and the bad weather had me stuck at work, I never came home for 3 straight days during the snow storm.