Pistils turning brown after sprayed to control pests

[Kbones22]

I’m a new grower and my plant had started to flower but I noticed some really small catapillars on it, I found about 5-6 then couldn’t see anymore but did find some other bugs(maybe spider mite) so I sprayed it and ever since the pistils have turnt brown rather fast compared to the day before they were looking perfect and white. Please does anyone have any info if I could save it or is it ready for the trash ?
I used a mite repellent not sure what brand I can double check and I used soapy water before the repellant.

 

[Madbud]

Brown pistils might be from caterpillars inside the bud. Open one up to check.

 

[Kbones22]

Brown pistils might be from caterpillars inside the bud. Open one up to check.

I can’t see any inside the buds I’ll keep looking the only problem is they’re so small but the pistils are not as brown today, could I just have upset it by spraying ? The leaves are now yellowing and curling at the tips of the leaves is this possibly a problem ?

 

[robotname555]

caterpillar soap?