Posted: 12/04/2017 at 19:04
They are effective, the adults are out now, you will see chunks bitten off the sides of your leaves, you can usually find them, they only walk, they don't fly. Look down the sides of the pots or underneath, they are still during the day, active at nights.
you can use the nematodes now to catch any that are still in grub stage then top up again in the autumn as the grubs stay in the compost all winter.
They are cheaper on Amazon, only £11.15, with postage. The other site charge 3.99 for postage, standard fixed rate.