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.
- Look after the winged warriors in the garden (telegraph.co.uk)