Hello, While I know earthworms are good for the garden, we have had an extreme amount of nightcrawlers near our driveway and sidewalk. This is the first year we have ever had such a problem,my question is, do they carry any type of disease, and how can I get ride of them?
Selectively prepare the locations where you wish to halt earthworm activity as follows:
1)remove castings from surface.
2)puncture soil surface with a pronged garden tool.
3)Soak soil under low pressure until it is saturated to depth.
4)Apply liquid carbaryl(Sevin) to a dilution prescribed for sod webworm control in the evening.
5)Repeat if castings or worms reappear.
I understand how you feel about killing worms since they are beneficial. Golf courses have a difficult time with worms. their castings could make a difference in a golf tournament; especially on the green.
I hope I have been helpful.
Chicago Pest Control