I’m searching for this year’s Garden Enforcer: a marigold that will discourage root nematodes.
How lovely that just one’s scent could deter a villain. My first choice, “Jolly Jester,” was sold out. I have since learned from the internet that any of the French marigolds will serve. And so I will search again, for this year’s underground security squad.
Sharing: other companion plants that deter pests:
1. *Ants: To repel ants I find it useful to use Mint, Tansies or Pennyroyals.
1. Aphids: To repel aphids use Mint, Garlic, Chive, Coriander or Anise.
2. Bean Leaf Beetle: To repel bean leaf beetles use Potatoes, Onions or Turnips.
3. Codling Moth: To repel codling moths use Common Oleander.
4. Colorado Potato Beetle: To repel Colorado potato beetles use Green Beans, Coriander or Nasturtium.
5. Cowpea Curculio: To repel Cowpea Curlios use Garlic, Cloves or Radish.
6. Cucumber Beetle: To repel cucumber beetles use Radish or Tansies.
7. Flea Beetle: To repel flea beetles use Garlic, Onions or Mint.
8. Harlequin Bug: To repel harlequin bugs use Radish, Turnips or Onions.
9. Imported Cabbage Worm: To repel imported cabbage worms use Mint, Sage, Rosemary or Hyssop.
10. Japanese Beetle: To repel Japanese beetles use Garlic, Larkspur, Tansy, Rue or Geranium.
11. Leaf Hopper: To repel leaf hoppers use Geranium or Petunia.
12. Mexican Bean Beetle: To repel Mexican bean beetles use Potatoes, Onions, Garlic, Radish, Petunia or Marigold.
13. Mice: To repel mice use Onions.
14. Root Knot Nematodes: To repel root knot nematodes use French Marigold, Slugs, Prostrate Rosemary or Wormwood.
15. Spider Mites: To repel spider mites use Onions, Garlic, Cloves or Chives.
16. Squash Bug: To repel squash bugs use Radish, Marigold, Tansies or Nasturtium.
17. Squash Vine Borer: To repel squash vine borers use Cloves, Onions or Garlic.
18. Stink Bug: To repel stink bugs use Radish.
19. Tomato Heartworm: To repel tomato heartworms use Marigold, Sage or Borage.
* Apologies for two #1’s: I am not skilled at Cut and Paste.
WORDS FROM OTHERS
“Here’s flowers for you,
Hot lavender, mints, savory, marjoram,
The marigold, that goes to bed wi’ th’ sun.
And with him rises weeping.”
— William Shakespeare, “The Winter’s Tale”,
(Perdita at IV, iv)
Amy in the Garden 
Hi Amy
I hope I have good luck cutting and pasting this list-how handy. I have always put marigolds and various flowers in the garden, and want to do more with herbs–so seeing this list gives me the little shove I need to do just that!
I got some wonderful french marigolds “Hero-Bee” from HPS seeds last year . They sell in larger packets, for VERY reasonable prices if you want to check them out.
Good luck!
I will look for those seeds! Thanks for the tip! Herbs are just marvelous — looks, scent, food, and medicine. Check out “Herbs” by Emelie Tolley and Chris Mead.