Leaves tacoing after preventive spray??

I’m in first week of flower, temp during lights on is around 77f humidity around 55, night time temp is 71, humidity around 57. No nute burn, runoff ppm and ph is stable. Upped the lights 2 days ago from 50 to 60. Checked on them yesterday right before lights out they look great, lights went off sprayed them with some Athena ipm along with stack which is kelp. Drenched the plants. Today I go in and notice a lot of the top fan leaves mostly started tacoing, turned the light back down to 50 but my question is why would it do that during the dark period and the last two days they were fine.
 

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