What is a Guardian Plant?

Guardian Plants Pull Pests and Host Their Natural Enemies

Indicator and trap plants pull pests

Habitat and banker plants support natural enemy reproduction

The term Guardian Plant includes all these functions

Orius on Marigold Guardian Plant

Guardian Plant Benefits

  • Save time detecting pests and their natural enemies

  • Grow your own steady supply of natural enemies

  • Cut shipping costs for natural enemies

  • Efficiently evaluate pest/natural enemy balance

Guardian Plant

Lantana

  • Guardian Plant
  • Lantana
  • Pest
  • Whitefly
  • Natural Enemy
  • Encarsia Formosa

Marigolds

  • Guardian Plant
  • Marigolds
  • Pest
  • Thrips
  • Natural Enemy
  • Orius

Beans

  • Guardian Plant
  • Beans
  • Pest
  • Two-spotted spider mite
  • Natural Enemy
  • Predatory mites

Eggplants

  • Guardian Plant
  • Eggplants
  • Pest
  • Whitefly
  • Natural Enemy
  • Encarsia formosa

Peppers

  • Guardian Plant
  • Peppers
  • Pest
  • Aphids
  • Natural Enemy
  • Aphids parasites

Measurement of Guardian Plant Impact:

Pest frequency in crop (% of crop plants where one or more individuals of the pest are found)
Pull ratio (# pests counted on Guardian Plant samples / # Pests on the same number of Crop samples)
Balance Ratio (# pests / # of natural enemies on the Guardian Plants). Gives the number of pests per natural enemy.
Presence of immature natural enemies indicates of natural enemy population producing its next generation on the Guardian Plant
Slide Show of 2011 Guardian Plant trials in vegetable fields in Eden NY 2011

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