Companion Plants to Deter Pests - Canadian Organic Growers, Toronto Chapter


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Companion Plants to Deter Pests - Canadian Organic Growers, Toronto Chapter

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Companion Plants to Deter Pests - Canadian Organic Growers, Toronto Chapter

  1. 1. Peanuts -will encourage growth of corn and squash.Peas -if planted near corn will provide extra nitrogen. Companion PlantsPennyroyal -deter ants, aphids, ticks, fleas, and cabbagemaggots. Brussels sprouts, broccoli, and cabbage will benefit frompennyroyal. to Deter PestsPeppermint -repels antsPyrethrum -repels most insects like aphids, leafhoppers, spidermites, ticks, and cabbage worms.Radish -plant around cucumbers to deter cucumber beetles.Rosemary -repels cabbage moths, beetles, mosquitoes, andslugs. Plant near beans, carrots, cabbage.Rue -Japanese beetles are deterred. Plants like roses andraspberries will benefit from rue.Sage -repels cabbage moths, carrot flies, and ticks. Carrots willlove them.Soybeans -will add nitrogen to the soil so plant near corn. Repelschinch bugs and japanese beetles.Spearmint -deters ants and aphids.Summer Savory -will improve growth of green beans and deterbean beetles.Tansy -deters ants, striped cucumber beetles, flies, Japanesebeetles and squash bugs. Plant near cucumber, squash, roses,grapes raspberry, and blackberry.Thyme -repels cabbage worms, flea beetles, and cabbagemaggots. Useful near cabbage.Tomato - plant near roses and will protect them from black spot.Wormwood -will deter black flea beetles, cabbage worm Canadian Organic Growers – Toronto Chapterbutterflies. www.cog.caSource:
  2. 2. Alfalfa -use to break-up hard clay soil, fixes soil with nitrogen. Garlic - seems to fit in anywhere -repels aphids, beetles, weevils, borers, and spider mites.Amaranth - use to host beneficial ground beetles andaccompanies sweet corn. Geranium -Repels cabbage worms and Japanese beetles, plant near grapes, roses, corn, and cabbage.Anise -will repel aphids as well plays host to predatory wasps. Henbit -most insects will stay away from henbit.Allium – use garlic, leek, onions and flowering onions for aphids,carrot flies, moles, tree borers and weevils. Suitable for Horseradish -around potatoes to encourage growth. May detervegetables (except peas and beans) and fruit trees. Colorado potato and blister beetles.Basil -use with tomatoes and asparagus plants for flies, aphids, Hyssop - will deter cabbage moths around cabbage and grapesmites and mosquitoes. Helpful with tomato hornworms and and may improve growth.asparagus beetles. Lamium - repel potato bugsBay Leaves -place fresh leaf in container of beans or grains to Lavender - repel antsrepel weevils and moths. Use for ladybug invasion by layingleaves around house. Leek -use near carrots, celery, onions. Will improve the growth and repel carrot flies.Bee Balm -attracts beneficial bugs and bees, plant with tomatoesto improve flavour and growth. Marigold -encourages growth if planted near tomatoes, potatoes, strawberries, beans, and roses. Repels many insects likeBeet -leaves contain large amount magnesium. Use with lettuce Mexican bean beetles and harmful nematodes in the ground.and onions. Mint - will improve flavour and growth if planted near cabbage andBorage -use around tomatoes, strawberries, and fruit orchards, tomatoes.repels tomato worms. Will attract honeybees and adds calciumand potassium to the soil. Mustard -known as a trap crop to attract many insect pests. Plant near cabbage, cauliflower, radish, Brussels sprouts, collards,Catnip - use around eggplant to drive away flea beetles. turnips, and kohlrabi. If insects are attracted then destroy plantsCelery - use near cauliflower, tomatoes, leek, and cabbage. Will before other crops are harmed.repel white cabbage flies. Nasturtium -repels aphids, cucumber beetles, squash bugs,Chamomile -plant only a few around cabbage and onions for white flies, and borers near fruit trees. Mainly cucumber andbetter flavour. squash will benefit.Chervil - will improve growth and flavour of radishes. Onion -repels cabbage moths, aphids, weevils, carrot flies, moles. Controls rust flies and some nematodes. Protects tomatoesChives -repels many fruit tree and tomato pests. Will increase against red spiders. May alter growth of peas and beans. Plantflavour and growth of carrots. near beets, tomato, lettuce, strawberry, cabbage, broccoli, andCoriander -plant near all vegetables to repel aphids and will draw cauliflower.bees. Oregano -plant near broccoli. Repels cabbage butterfly.Dill - plant around cabbage. Will improve growth and flowers will Parsley -repels carrot flies, rose, and asparagus beetles. Plantattract bees. near asparagus, carrots, tomato, roses.