Sigh... is it too early yet to use nematodes?

[StandardLampski]

I've got a hideous infestation of vine weavil grub things 🤮
Picked ( im not kidding) a few hundred out over the last week or so but Its a drip in the ocean ...so reckonni need to treat every pot. Oh there are many....

Anyway. Anyone else in the same boat?
Is it too cold still do you think?

I put mine out last week nd the week before. Seems to have done the trick. Stuff is growing so 8 thin warm enough.

The stuff I read up on is that treat Aug/Sept for following year. Now is too late.

I’m afflicted as well. Not so many, but I’m sure the nematodes company contact me in the spring for the first application, then another in late summer.
I’m really cross as they winter feasted on my prostrate eucalyptus!

I'd read once in spring once warm enough, and then again come autumn too....
But that a late frost renders it useless.
But I read things and then forget and get confused 😅

They have had a right munch on my artichoke this year, and appear to be in e every pot so do want to get on it before I put much more out. Can't afford to replace the soil and don't have time to fine comb through every pot. So depressing....

I'll do it soon then!

You can definitely apply them now.

The temp needs to remain above 12 degrees which is definitely not the case at the moment