What I find annoying is aphids will eventually cause yellow dots/marks or yellow discolouration to the leaves (before or aswell as the shrivelling) but over watering will also cause them to yellow ? trust me tho you honestly can’t miss the aphids when you do have them as there’s always lots.
Happy to of shared the info, I absolutely loved bugs & insects as a child (still secretly do) but my views on certain ones have changed as Iv aged – and realised the destruction some can cause. ?????