Tomato Leaf Juice for Black Spot on Roses
Just blend and strain, place in spray bottle and spray roses.
Keep this mixture away from pets, as tomato leaves can be toxic.
Tomatoes contain solanine, an alkaloid that repels asparagus beetles. After the first harvest, plant tomatoes near the asparagus patch. The hungry pests will look for easier pickings elsewhere, leaving healthy ferns to send nutrients to the crowns