Moths Moths and more Moths !!!!!

Fekita, Sione's sister from Tonga has been cleaning out my pantry's and I have lost a quarter of all my goods, due to moths..The more she did the more she found.....We knew we had a problem but not to the extent we had. They were in rice had to throw out nearly all of that which was at least 20 kilo's...not those that had been sealed in the foils thank goodness..I had some Goji beans and they were thick in there as well as a large container of peanuts....let alone the flour....everything is now being foiled or vacuumed.....oh yes even in my herbs which I had all re- done in special containers......I think it is best left in their original jars...that was not a good idea ...even though it did look so nice and orderly.
Tony and I are dumbfounded how these moths can get into tightly screwed containers....yes I did freeze the rice etc for 72 hours before putting them into my pantry.
Even if you have one moth....sorry but you are doomed...you MUST get rid of them straight away...I have found Pantry Moth sticky catchers to be great but obviously not great enough.....I thought they were really doing the job but it was far worse then we could have imagined....even now after everything has been wiped and cleaned I still have found a couple of them flying around.......sorry but even fly spray doesn't work they seem to shake it of, while I'm coughing and spluttering this little !!!!!! fall down and then eventually get up and fly again.....love to know the answer to this awful problem.......HELP !!!