neem oil on plum tree

Last year one of my 1 year old Burbank plums was covered in aphids that I did not notice until the leaves and fruit were damaged. I have neem oil ready to use, and I see the flowers are just about to open. Should I spray now or after the leaves open? The other tree was untouched and had a heavy crop of fruit. The later leaves were ok on this one, but it was too late. Thank you.

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1 Comment To "neem oil on plum tree"

#1 Comment By Downtoearthdigs On 08/13/2015 @ 2:53 pm

It should not affect the blooms if you go ahead and spray now.

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