Tomato Leaf Juice for Black Spot on Roses

Pam Ellingson


This remedy has two uses. First to help with black spot on roses and second to help protect asparagus from asparagus beetles and other garden plants from aphids, diamond back moths, and corn earworms.

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Roses and Asparagus
5 Min


fresh, healthy tomato leaves
water to blend

How to Make Tomato Leaf Juice for Black Spot on Roses


  • 1Healthy tomato leaves can be juiced and made into a spray to prevent black spot on roses.
    Just blend and strain, place in spray bottle and spray roses.
  • 2Tomato leaves are packed with alkaloids, which can be an effective repellant for aphids, corn earworms and Diamondback moths. Go Green Ninja recommends soaking 1 to 2 cups of chopped or mashed tomato leaves in two cups of water overnight, straining it through a fine mesh and adding two more cups of water before spraying it on the plants in your garden.

    Keep this mixture away from pets, as tomato leaves can be toxic.
  • 3Tomatoes and Asparagus Make Good Companion Plants

    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

Printable Recipe Card

About Tomato Leaf Juice for Black Spot on Roses

Course/Dish: Other Non-Edibles
Main Ingredient: Non-Edible or Other
Regional Style: American
Other Tags: Quick & Easy, Healthy