Infestation instead of Tackle?

When is I worthwhile using a weezing? I evolved one for the Dex and have since just transferred it seemed pretty useless

Since tackle is not a poison move on a poison pokemon takle is more used to charge up the charge move normally poison type to of course be a decent poison attacker so the higher eps allows him to be a better poison mon also poison and bug may have some of the same SE bonuses but I am not sure.

My 100% iv pokemon is only weazing(1) and arbok(2).
Its poison and useles...
So sad...

Infestation hits the main type used to wreck Psychic: Poison. That + the EPS are the only things I can think of. I have a Tackle/SB one I don't really ever use since he's level 30 around 1750 CP.,

Maybe against Bullet Seed Exeggutors, or it can be used for defensive purposes, though its so low max CP might be unviable in your area.

Infestation does less damage on offense. The DPS numbers are assuming you use the move as soon as it's off cooldown.

On defence, an average of 2s is added to a move, which means slower but higher damage moves are hurt less in terms of DPS reduction than faster but smaller damage moves.

While bug has more types that resist it, most of those types are irrelevant since they won't be used to attack a Koffing. Plus bug is super effective against psychic, a type that is strong against Koffing.