Vinegar will normally kill whatever you spray it on, wouldn't do that. Conventional wisdom is to pick them off and squash them, also the quickest way to get rid of them. Bt will do the job but not before they eat more tomato plants. I would hand pick and then spray with Bacillus thurengenus (SP?) to catch the next ones. George Janni wrote: > > For the first time ever, we have those HUGE horned tomato worms. I have > heard that spritzing all the plants with white vinegar will kill many > pests. Also, some herb I have never heard of, borage. How does one put > that on? Or do you plant it around the plants? Thanks! > > Janni