It appears that some have had success with cutting open the stem and removing the infecting grubs. Well, this morning I decided to put the zukes through an open stem grub removal surgery. Sad to say, I am not optimistic the patient will pull through. “Don’t go to the light young Zucchini!”
I tried to take a few pictures of the operation.
Editors note: readers uncomfortable with the sight of open stems and grubs should stop reading here.
First step was to locate the likely sights of the infection and make an incision in the stem.
Next, gently root around and locate the nasty grubs.
Once the grubs have been extracted, use a suitable method of dispatching the bastards that have tried to kill your zucchini.
In my case, I managed to dig out four of the plump pale eating machines. I hope that was all of them or at least enough for the plant to have a chance.
Finally, cover the stem with soil and water.
All I can do now is watch and wait.