Will diesel fuel kill weeds if you spray it on them?

Yes, diesel fuel can kill weeds when sprayed on them, as it acts as a non-selective herbicide. The hydrocarbons in diesel disrupt the plant's cellular structure, leading to dehydration and death. However, using diesel as a herbicide is not environmentally friendly and can harm beneficial organisms in the soil. It's generally recommended to use commercial herbicides specifically designed for weed control instead.