Foliar feeding of citrus and other fruit plants, while in bloom

[Plantinyum]

Just sprayed my lemons and a mandarin, which are blooming right now, hope i didnt made a mistake. Does foliar feed do any damage to flowers and flower buds if its in the apropriate dose??
My guavas are also flowering and i sprayed them also....
Will they be ok ??

Also when i spray fertilize4 in my gh is it ok to close it to keep the humidity in trought night ,the plants will be wet all night so they can absorb the fert better??