I bought some maggots about 10-11 days ago and 3 sessions in they are mostly still looking good but the odd caster has appeared yet somehow my grandad is still fishing with maggots that I bought him before Christmas without a caster in sight!
When I lived at me parents my mum got sick to death of fruit flies and couldn't get rid of them. Told her I didn't have any bait left so it couldn't have been from me... A few weeks later I was sorting my stuff out and came across some sweetcorn I forgot I had. It was covered in flies. I got rid of it all sharpish