Biological controls – An introduction

April 13, 2011 § 1 Comment

Biological controls are organisms (insects, nematodes, micro-organisms) introduced to a growing space to feed on pests. Most of these are very small and not interested in humans. Their application is often temperatures specific (so seasonal) and a few can only survive in heated greenhouses.

In the UK we have many species of parasitic wasps, ladybirds, lacewing and hoverflies whose larvae eat butterfly and moth eggs, thrips, leaf hoppers and aphids.


Beneficial predators can be encouraged into your garden by planting members of the apiaceae  family- flowering parsley, fennel, dill and coriander, and also lemon balm, lupins, sunflowers, borage, chamomile, statice, tansies, marigolds, shasta daisies, amaranthus and Queen Anne’s lace.

It is helpful to encourage natural predators to populate your garden by planting crops which will attract them. If local beneficial predator numbers are low, they will benefit from both habitat provision and the introduction of purchased insects to re-populate the locale.



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§ One Response to Biological controls – An introduction

  • Anonymous McStranger says:

    It’s like John Conway’s game of life but with a lot of variables and the person keeping the plants having to put a bit more work in. It seems rather difficult growing all these cultivars and being so adept at the knowledge of different kinds of problems that may come around as if not everyone can do this.

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