dont know if this has been mentioned, and i dont know if its even legal(with the EPA). take a bucket of water and mix dawn soap(i used Ajax, i think, and it worked to) mix it in the bucket of water, pour over the ground where you think there might be alot of worms. sit back and grab them as the come out of the ground. i think it hurts them, so i had a pale with clean water on hand to rinse them off so they wouldnt die, i done this most of the day and didnt see any die from it, but ya never know. they literally jump right out of the ground! have fun!