Agriculture Articles

Companion Plants ~ Insect-Repellant Plants ~ Beneficial Insects

Companion Plants

Amaranth -- Corn, Onion, Potato

Angelica -- Incompatible with Dill

Anise -- Beans, Coriander /// Incompatible with Basil, Rue

Apple -- Chives /// Incompatible with: Potato

Asparagus -- Basil, Marigold, Nasturnium, Parsley, Tomato /// Incompatible with Mint, Onion

Basil -- Beans, Cabbage, Marigold, Pepper, Tomato -- Incompatible with Rue

Beans -- Beets, Borage, Cabbage, Carrot, Cauliflower, Celery, Collards, Corn, Cucumber, Nasturnium, Petunia, Potato, Squash, Strawberry, Summer Savory, Sunflower, Tomato /// Incompatible with Chives, Onion, Garlic, Fennel, Gladiolus, Leek

Bee Balm -- Tomato /// Incompatible with Field Mustard

Beets -- Basil, Bush beans, Cabbage, Kohlrabi, Lettuce, Onion, Sage, Tomato /// Incompatible with Pole beans, Mustard

Borage -- Squash, Strawberry, Tomato

Broad Beans -- Corn /// Incompatible with Kohlrabi

Broccoli -- Beans, Celery, Chamomile, Dill, Mints, Nasturtium, Onion, Oregano, Potato, Rosemary, Sage /// Incompatible with Lettuce, Strawberry, Tomato

Brussel Sprouts -- Beans, Celery, Dill, Hyssop, Mints, Nasturtium, Potato, Rosemary, Sage /// Incompatible with Strawberry

Cabbage -- Aromatic herbs (repel Cabbage Worms), Bush Beans, Beets, Celery, Chamomile, Dill, Geranium, Hyssop, Lavender, Marigold, Mint, Nasturnium, Onions, Oregano, Potato, Rosemary, Sage, Tansy, Thyme, Tomato /// Incompatible with Dill, Grapes, Mustards, Rue, Strawberries, Tomatoes

Calendula -- Tomato (Repels tomato worms, asparagus beetles)

Caraway -- Peas /// Incompatible with Fennel

Carrots -- Chervil, Chives, Leaf lettuce, Leeks, Onion, Peas, Radish, Rosemary, Sage, Tomato, Wormwood /// Incompatible with Anise, Dill

Cauliflower -- Beans, Beet, Celery, Chamomile, Dill, Hyssop, Lavender, Mints, Nasturtium, Onion, Oregano, Radish /// Incompatible with Dill, Strawberries, Tomatoes

Celery --Beans, Cabbage, Cauliflower, Leek, Onion, Spinach, Tomato /// Incompatible with Corn

Chamomile -- Cabbage, Mint, Onion, Squash

Chervil -- Carrots, Radish

Chives -- Carrots, Grapes, Parsley, Tomato /// Incompatible with Peas, Beans

Collard Greens -- Tomatoes

Coriander -- Anise, Potato /// Incompatible with Fennel

Corn -- Amaranth, Beans, Cucumber, Geranium, Lamb's Quarters, Melons, Morning Glory, Peas, Potato, Pumpkin, Sow Thistle, Squash, Sunflower  /// Incompatible with Celery, Tomato

Cucumbers -- Beans, Broccoli, Celery, Corn, Lettuce, Marigold, Nasturnium, Onion, Peas, Radish, Savory, Sunflower, Tomato  /// Incompatible with: Potato, Rue, Sage

Dill -- Cabbage, Lettuce, Onion /// Incompatible with Carrot, Tomato

Eggplant -- Amaranth, Beans, Peas, Spinach, Tarragon, Thyme

Fennel -- Incompatible with Beans, Caraway, Dill, Fennel, Kohlrabi, Tomato, Wormwood

Fig -- Incompatible with Rue

Flax -- Carrot, Potatoes

Garlic -- Beets, Carrots, Chamomile, Lettuce, Raspberry,  Roses, Tomato, Summer savory /// Incompatible with Beans, Cabbage, Peas, Strawberries

Grapes -- Clover, Geranium, Hyssop, Oregano /// Incompatible with Cabbage, Radish

Hyssop -- Cabbage, Grape

Kohlrabi -- Beets, Cucumber, Onion /// Incompatible with Pole Beans, Pepper, Strawberry, Tomato

Leek -- Carrots, Celery, Onions /// Incompatible with Beans, Broccoli

Lettuce -- Beet, Cabbage, Carrot, Clover, Corn, Cucumber, Melon, Onion, Peanuts, Peas, Radish, Strawberry, Sunflower

Lovage -- Beans

Melons -- Corn, Nasturnium, Radish

Mint -- Cabbage, Tomatoes  /// Incompatible with Chamomile, Parsley

Nettle -- Increases the oil production of herbs

Onions -- Amaranth, Beets, Cabbage, Carrot, Celery, Chamomile, Leeks, Lettuce, Pepper, Potato, Roses, Sow Thistle, Strawberry, Summer savory, Tomato /// Incompatible with Beans, Peas

Oregano -- Cabbage, Cucumber

Parsley -- Asparagus, Carrot, Chives, Onions, Roses, Tomato /// Incompatible with Mint

Petunia -- Beans

Peanuts -- Squash, Corn

Peas -- Aromatic herbs, Beans, Carrots, Corn, Cucumber, Eggplant, Lettuce, Potato, Radish, Spinach, Turnips /// Incompatible with Garlic, Gladiolus, Leek, Onion, Potoato, Shallots

Peppers -- Basil, Carrot, Lovage, Marjoram, Onion, Oregano /// Incompatible with Fennel, Kohlrabi

Plum -- Horseradish

Pole Beans -- Radish // Incompatible with Beets, Sunflower

Potatoes -- Amaranth, Beans, Corn, Cabbage, Eggplant, Flax, Horseradish, Lettuce, Lima Beans, Marigold, Onion, Petunia  /// Incompatible with Cucumber, Pumpkin, Radish, Raspberry, Sunflower, Squash, Tomato

Pumpkin -- Corn, Dastura /// Incompatible with Apple, Potato, Raspberry, Rosemary, Tomato

Radishes --  Beans, Beets, Carrots, Chervil, Cucumber, Lettuce, Melons, Nasturnium, Parsnips, Peas, Spinach, Squash  /// Incompatible with:  Brussels sprouts, Broccoli, Cabbage, Cauliflower, Grape, Hyssop, Kohlrabi, Potato, Turnips

Raspberry -- Tansy /// Incompatible with Potato

Rhubarb -- Columbine, Garlic, Onion, Roses

Rose -- Beans, Cabbage, Carrot, Sage /// Incompatible with Potato

Rosemary -- Beans, Cabbage, Carrots, Sage /// Incompatible with Potatoes

Rue -- Figs, Raspberry, Rose, Strawberry /// Incompatible with Basil, Cabbage, Sage

Sage -- Beans, Cabbage, Carrot, Marjoram, Peas, Rosemary, Strawberry, Tomato /// Incompatible with Cucumber, Rue

Savory -- Beans, Onions

Southernwood -- Cabbage

Sowthistle -- Corn, Onions, Tomato

Soybeans -- Everything

Spinach -- Cabbage, Cauliflower, Celery, Eggplant, Onion, Peas, Strawberry

Squash -- Beans, Corn, Cucumbers, Icicle radishes, Mint, Nasturnium, Onion /// Incompatible with Potatoes

Strawberries -- Beans, Borage, Comfrey, Lettuce, Onion, Spinach /// Incompatible with Broccoli, Brussle Sprouts, Cabbage, Califlower, Kohlrabi

Sunflower -- Cucumber /// Incompatible with Cabbage

Tansy -- Fruits, Peppers, Potato, Rose, Raspberry

Thyme -- Cabbage

Tomatoes --  Asparagus, Basil, Bee Balm, Carrot, Celery, Chives, Garlic, Lemon Balm, Onions, Marigold, Mint, Nasturtium, Parsley, Peas, Sage /// Incompatible with Cabbage, Cauliflower, Corn, Dill, Fennel, Kohlrabi, Potato

Turnip -- Peas

Insect-Repellant Plants

Basil -- Flies, Mosquitoes, Asparagus Beetle

Borage -- Tomato Worm

Calendula -- Asparagus Beetles, Tomato Worms

Catnip -- Ants, Aphids, Cockroaches, Flea Beetle, Japanese Beetles

Chrysanthemum -- Mexican Bean Beetle

Cosmos -- Mexican Bean Beetle

Coriander -- Aphids

Dandelion -- Colorado Potato Beetle

Dead Nettle -- Potato Beetle

Fennel -- Fleas

Flax -- Potato Beetle

Garlic -- Aphids, Apple Scab, Borers, Japanese Beetles, Peach Leaf Curl Disease, Spider Mites

Geranium -- Cabbage Worm, Red Spider Mite

Henbit -- General insect repellant

Horseradish -- Potato Beetle

Hyssop -- Cabbage Moth

Lavender -- Mice, Ticks, Moths

Marigold -- Mexican Bean Beetle, Nematodes

Mint -- Ants, Aphids, Cabbage Moth, Fleas, Mice

Mole Plant -- Mice, Moles

Nasturnium -- White Flies, Squash Bugs, Striped Pumpkin Beetle, Wooly Aphid (apple)

Oregano -- Cabbage Butterfly, Cucumber Beetle

Parsley -- Beetles

Pennyroyal -- Fleas, Flies, Mosquitoes

Pot Marigold -- Asparagus Beetle, Tomato Worm

Radish -- Cucumber Beetle

Rosemary -- Bean Beetles, Cabbage Moth, Carrot Fly

Rue -- Flies, Japanese Beetle, Cats, Dogs

Sage -- Bean beetle, Cabbage Moth, Carrot Fly, Slugs

Southernwood -- Cabbage Moth

Sunflower -- Armyworm

Tansy -- Ants, Fleas, Flies, Japanese Beetle, Moths, Striped Cucumber Beetles, Squash Bugs

Thyme -- Cabbage Worm

Wormwood -- Animals

Beneficial Parasitoid Wasps and Hoverflies are attracted to: Alyssum, Buckwheat, Cilantro, Fennel, Mustard, Phacelia, and Yarrow (J. Luna, et al., Organic Farming Research 6:7-9)

"Pollen and Nectar plants" that attract beneficial predator insects: Carrot, Catnip, Coneflowers, Daisy, Dill, Fennel, Goldenrod, Lemon Balm, Mint, Parsley, Peppermint, Spearmint, Thyme, Yarrow.

Beneficial Insects

Assassin Bug -- Caterpillars, Flies

Big-Eyed Bug -- Aphids, Caterpillars, Leafhoppers, Mites; attracted by Clover, Goldenrod, Soybeans.

Braconid Wasp -- Aphids, Armyworm, Cabbageworm, Cornborer, Codling Moth, Elm Bark Beetle, Horn Worm; Attracted by Dill, Parsley, Yarrow.

Damselbug -- Aphids, Caterpillars, Leafhoppers, Thrips; Attracted by Alfalfa.

Ground Beetle -- Caterpillars, Cabbage Maggot, Colorado Potato Beetle Larvae, Cutworms, Slugs, Snails; Attracted by Clover.

Honeybee -- Pollinator

Hover Fly (Syrphid Fly) -- Aphids

Ichneumon Wasp -- Beetle larvae, Caterpillars, Sawfly,

Lacewing -- Aphids, Corn Earworms, Mites, Thrips

Lady Beetle -- Aphids

Minute Pirate Bug -- Leafhopper nymphs, Spider mites, Thrips

Predatory Mite -- European Red Mites, Spider Mites

Praying Mantis -- Also predates beneficials

Rove Beetle -- Aphids, Cabbage Maggot, Flies, Mites, Springtails

Soldier Beetle --  Aphids, Beetle larvae, Caterpillars, Corn Rootworm, Cucumber Beetle, Grasshopper eggs ; Attracted by Goldenrod, Milkweed, Hydrangea

Spined Soldier Bug -- Caterpillars, Sawfly larvae

Tachinid Fly -- Caterpillars

Tiger Beetle -- General predator

Yellowjacket -- Flies, caterpillars

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