please forgive me , i am new here and also a new chilli grower. This may be a well known solution.
Iv been using the sticky tape way to control the aphids on my chillies , it works really well, but you are always going to miss one. But tonight i was hit by some inspiration. The Story..... We have a naughty cat, this cat will wee and spray all over the house....really annoying and really smelly. We found it really difficult to trace effected area, until a friend told me to use black light. So i bought on ebay a small led type black light torch for a few coin and set about finding in the dark where the bugger had been. Worked well, wee shone up and area cleaned. Think you can guess what i did today, and yes , aphids show up beautifully !!!! so easy to find , problem sorted!!!! here is a pic, although photo does not do it justice.!!
Im going to have so much fun hunting them now lol. Hope this helps people and sorry if this method is well known already.