cabbage and broccoli being devoured/no sign of borers

Good afternoon all!
My summer sowed brussel sprouts and broccoli were growing nicely; now they are being devoured by cabbage borers from the look. I check several times a day and none are visible to the eye; I may have seen some tiny larvae.  I am using neem oil spray, but I am losing the battle.  Any suggestion?  I will include a picture.

That damage reminds me a bit of cutworm - or at least what my family call cutworm.  I don't know their real name.  They live in the top couple of inches of soil during the day and creep up onto the plant at night.  They do a lot of damage and seem immune to most sprays (organic or other).  Scratch around in the soil near the plant and see if you can find a fat grub (about finger width).

This kind of damage could also be cabbage moth.

What part of the world are you in?  That might help narrow it down.  

Same happened to me. So I harvested a bit early, trimmed it a bit, and shredded the holey cabbage and made salt brine saurkraut.

r ranson wrote:That damage reminds me a bit of cutworm - or at least what my family call cutworm.  I don't know their real name.  They live in the top couple of inches of soil during the day and creep up onto the plant at night.  They do a lot of damage and seem immune to most sprays (organic or other).  Scratch around in the soil near the plant and see if you can find a fat grub (about finger width).

This kind of damage could also be cabbage moth.

What part of the world are you in?  That might help narrow it down.  

   Thank you for the info.  I am in the Northeast, specifically Suffolk County, Long Island, NY.  I have learned to spot the tiny eggs on the leaves and have been checking the plants at sunrise and dusk for eggs and worms.  I have found two worms (one brown, one green) and many of what appear to be single eggs.    I am going try to rig some covers for the plants, I only have about ten.  
This a picture that I found online that looks like the eggs I'm removing.  (credit:http://mygardenyourgarden.blogspot.com/2012/04/where-do-those-green-cabbage-worms-come.html).