Hi, I have two hibiscus plants that i grew from cuttings many years ago. i keep them on the window sill and they always grow well. this year after transpanting.tjem tp bigger pots they became the target for aphids. I initially sprayed with a solution.of washing up liquid, but although this.killed the aphids, the.leaves.started.to die.on the plants. I have been managing the prpblem by sqashing them but i was wondering.if anyone had.any tips oon.getting.rid.of.them with damaging the plants? Any ideas gratefully recieved! P.S. Apologies for any typing errors, i have posted from my phone!