Friday, December 7, 2012

Trap Plant Species

The French Marigold (Tagetes patula) is one of the more well known Trap Plant Species
http://upload.wikimedia.org/wikipedia/commons/e/e7/French_marigold_Tagetes_patula.jpg

I recently wrote about Trap Plants and Trap Crops. I had said that I would publish a listing of trap plant species, so here it is, but before I begin, I need to say a few things.

First, the chart below lists the Main Crop species in bold first, and then the Trap Plant Species is listed underneath as a bullet. Finally, the pest that is drawn away from the Main Crop is listed after the Trap Plant Species.

Second, this list represents only plant pairings for which I could find solid research. There may be other legitimate trap plant species out there, but I did not find anything that proved it. If you come across a pairing, AND you have some research to back it up, please send it my way, and I will add it to my list.

Third, as I come across more research, I will be adding it to this list.

Fourth, and finally, a word about names.  I call these plants (as do many scientists) Trap Plants. Many people may call this Companion Planting, and they would be correct. To me, Companion Planting is any plant pairing that aids the growth of the main crop. It may also aid the growth of the companion plant as well, but that is getting into a whole new subject. Now a Companion Plant may provide nutrients, provide minerals, add fertilizer, attract beneficial insects, provide shade or structural support, or it may repel pests.  Trap Plant planting is a specific type of Companion Planting that draws a pest to themselves and away from the main crop. I hope that makes sense.  I plan to write about this in more detail in the near future as well.


TRAP PLANT SPECIES 
(Listed under their respective Crop Species)

Bean

  • Eggplant – Whitefly
  • Squash – Whitefly


Cabbage

  • Chinese Cabbage – Cabbage Webworm, Fleahopper
  • Collards – Diamondback Moth
  • Indian Mustard – Cabbage Head Caterpillar
  • Marigold - Nematodes
  • Mustard – Cabbage Webworm, Mustard Aphid
  • Nasturtium – Aphids, Flea Beetle, Cucumber Beetle, Squash Vine Borer
  • Radish – Cabbage Webworm, Fleahopper, Flea Bettle, Root Maggot
  • Sesamum spp. – Diamondback Moth
  • Tomato – Diamondback Moth
  • Yellow Rocket – Diamondback Moth


Carrot

  • Onion – Carrot Root Fly, Thrips
  • Garlic – Carrot Root Fly, Thrips


Cauliflower and Broccoli

  • Chinese Cabbage – Cabbage Fly
  • Marigold – Pollen Beetle
  • Sesamum spp. – Diamondback Moth
  • Sunflower – Pollen Beetle
  • Turnip – Cabbage Fly
  • Wild Mustard – Flea Beetle, Potato Leafhopper
  • Yellow Rocket – Flea Beetle


Corn

  • Beans and other Legumes – Fall Armyworm, Leafhopper, Leaf Beetles, Stalk Borer
  • Desmodium spp – Stemborer, Striga
  • Medic – Carrot Root Fly
  • Mustard – Stink Bug
  • Napier Grass – Stemborer
  • Sorghum – Corn Stalk Borer
  • Soybeans – Heliotis spp.
  • Sudan Grass – Stemborer
  • Vertiver Grass – Corn Stalk Borer


Cotton

  • Alfalfa – Lygus Bug, Green Stink Bug
  • Castor Beans – Heliotis spp.
  • Chick Pea – Heliotis spp.
  • Corn – Heliotis spp.
  • Cowpea – Heliotis spp.
  • Fleabane – Tarnished Plant Bug
  • Okra – Flower Cotton Weevil (Bollworm)
  • Sharpleaf Groundcherry – Whitefly
  • Sunflower – Heliotis spp.
  • Tobacco – Heliotis spp.


Cowpea

  • Desmodium spp – Stemborer, Striga


Cranberry

  • Foxtail – Cranberry Girdler
  • Red Top – Cranberry Girdler


Cucurbits (Squashes, Melons, Gourds)

  • Blue Hubbard Squash (planted around Yellow Summer Squash) – Cucumber Beetle and Squash Vine Borer
  • Corn – Fruit Fly
  • Squash (planted around Cucumber) – Striped Cucumber Beetle
  • Marigold – Nematodes


Garlic

  • Basil - Thrips
  • Marigold - Thrips


Groundnut

  • Castor Bean – leaf eating caterpillars
  • Sunflower – leaf eating caterpillars


Leek

  • Chives – Leek Moth


Legumes

  • Marigold – Nematodes


Lettuce

  • Alfalfa – Lygus Bug
  • Clover – Lygus Bug
  • Crownbeard and other Wildflowers – Thrips
  • Melilot – Lygus Bug
  • Mugwort – Lygus Bug
  • Vetch – Lygus Bug


Millet

  • Desmodium spp – Stemborer, Striga


Peach

  • Canola – Lygus Bug


Peanuts

  • Squash – Corn Rootworm, Cucumber Beetle


Peppers

  • Hot Cherry Pepper – Pepper Maggot
  • Lupin – Heliotis spp.


Potato

  • Horseradish – Colorado Potato Beetle
  • Marigold – Nematodes
  • Sorghum – Aphid
  • Soybean - Aphid
  • Tansy – Colorado Potato Beetle
  • Wheat – Aphid


Rice

  • Marigold – Snails


Rose

  • Pelargonium geranium – Japanese Beetles


Sorghum

  • Desmodium spp – Stemborer, Striga


Soybean

  • Green beans – Mexican Bean Beetle
  • Rye – Corn Seedling Maggot
  • Sesbania – Stink Bug
  • Sickle Pod – Velvet Bean Caterpillar, Green Stink Bug


Strawberries

  • Alfalfa – Lygus Bug, Tarnished Plant Bug
  • Daisy – Lygus Bug
  • Mustard – Lygus Bug
  • Scented May Weed – Tarnished Plant Bug
  • Wheat and other grains – Dusky Wireworm
  • Yarrow – Lygus Bug


Sweet Potato

  • Corn – Wireworm
  • Wheat – Wireworm


Tomato

  • Corn – Fruit Fly
  • Cucumber – Tomato Fruit Borer
  • Dill – Tomato Hornworm
  • Lovage – Tomato hornworm
  • Marigold - Nematodes


Vegetables (General)

  • Chervil – Slugs


Watermelon

  • Squash – Cucumber Beetle, Squash Bugs


8 comments:

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    Thank you very much for sharing.

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