OMG that sounds like a massive number of ‘todes. How can you keep them all on your allotment ? Electric or laser wire fence (he he, just kidding).
I read somewhere that when putting them into the soil, the effect only lasts 6/8 weeks. I wonder why? Don’t they reproduce after being released or maybe it is only the males which are being released, not the females (or vice-versa)? That would be a very crafty way for the sellers of these things to ensure repeat buyers seems to me;.
Do you know if these nematodes are fond of chomping on veggies too or maybe they are only carnivorous? Let’s hope so,
Best wishes
Julie