Can I use undiluted liquid on my plants?

Technically yes, but only as a weedkiller, nevertheless, you shouldn’t use it undiluted directly on plants.

The undiluted liquid shouldn’t be used on plants because of the low pH level (around 4) and high conductivity that can cause salt stress. However, if the soil is not too wet, you could use undiluted liquid to exterminate weed and pests.

Did you know that with the undiluted liquid you can exterminate weed and pests?