how to stop dog catching butterflies and bees?

[ender]

He did it last summer so was mostly on lead in the garden. I thought he might have grown out of it now he's 14 months old but has just killed a lovely Red Admiral, first we've seen this year. He caught it and played with it till it was dead . Any ideas how to train him out of this?

[Ephedra]

My dog chases anything that flies to the point of obsession. He rarely catches anything though.

We asked our dog trainer what to do and she said:
distract the dog each time
reward the dog if it sees something to chase but doesn't
teach a leave it command

None of this works for our dog because chasing flies is more rewarding than anything else. We make sure to use a fly curtain in summer so the house is safe (he will run into things) and try interrupt him when outside.

[Ilovemydogandmydoglovesme]

I wouldn't mind flies and spiders but butterflies is a bit of a shame. However he might think twice once he's snapped at a bee or a wasp and it's stung him in the mouth. They do like to learn by experience. Bit like children in that respect.

[Ephedra]

Ilove I don't agree about the spiders, there is nothing worse than seeing housespider legs hanging out of your dogs mouth!

[crispycake]

My dog loves chasing bees. Every summer she gets stung on the tongue/nose. She will not listen to anything we say/do to her & will continue to try and catch another even though she's just been stung. She's 13yrs so it's definitely not to change anytime soon :)

[ender]

Thanks for replies. Definitely need to sort it out so will try distraction and rewarding.
We had a bumble bee nest in the house eaves last summer and I loved watching them bumbling about until we got dog in August. He caught every one he saw and was was never stung, I kept hoping he would be so it'd put him off, had Piriton standing by. He has has to work a bit harder to catch butterflies but enjoys the chase and leaping about.