Biological Pest Controls - Beneficial Insects
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Things have changed in the gardening world since the days when there was a spray for everything and everything got sprayed.
Biological controls are in many ways more effective than old-fashioned chemical treatments. Better for the environment as well since they target the pest not our friends the predators that eat them.
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Chafer grubs can decimate a lawn, and birds and large animals such as foxes and badgers will stop at nothing to dig them up and cause even more damage. The nematode (heterorhabditis megidis) in Nemasys Chafer Grub Killer should be applied now or during September while the young chafer grubs are active.
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The nematode, steinernema kraussei, is designed to work at lower temperatures and kills all vine weevil larvae present in the soil. Treat plants when the vine weevil larvae are active in early Spring, (March) & Autumn, (September to November). Minimum soil temperature of 5 degrees.
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The Red Spider Mite attacks many plants including tomatoes, strawberries and ornamentals causing leaves to turn yellow. It is important to start control as soon as the mites are detected applying Phytoseiulus persimilis. These predatory mites are capable of devouring large numbers of the spider mites and breed very rapidly. The persimilis mite is effective at a wide temperature range from 4 to 28 degrees and can also be used outdoors.
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The parasitic wasp Encarsia Formosa is a very effective way to control whitefly supplied as pupae on cards which are simply hung in a shady position throughout the crop, level with the lower leaves of the plants. They can be supplied as a repeat programme of Encarsia Formosa, every two weeks over a six week period to ensure the pest is continually controlled.
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One of the toughest parts of organic gardening is protecting the garden from slugs and it has never been easier than using the nematode (phasmarhabditis hermaphrodita) in Nemaslug Slug Killer. Introducing these nematodes into the soil boosts the naturally occurring population that attack slugs - apply from the beginning of the growing season in March/April.
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Another nematode based biological control. This pack contains 3 applications of 20 million naturally occurring beneficial nematodes - steinernema carpocapse
Caterpillars can devastate a brassica crop and this is, when used according to the instructions, an effective answer. It is a natural product, harmless to children, pets and wildlife which will successfully control caterpillars on an area of 40 sq metres.
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The ladybird larvae feed on vast numbers of aphids (greenfly) daily, making them an effective predator for the control of aphids in the greenhouse environment. Apply when temperatures have reached 10 degrees.
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The Nemasys Codling Moth Killer is a natural product that is harmless to children, pets and wildlife, each pack contains 3 sets of 20 million naturally occurring beneficial nematodes (Steinernema carpocapse), and will treat up to 20 trees for codling moth
- Apply during September/October
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If your lawn has developed brown patches and the grass has little root growth, the chances are you’ve got leatherjackets (the larvae of the cranefly, or daddy longlegs) and you need to apply Nemasys Leatherjacket Killer Now. The prolific lawn pest leatherjacket can be controlled by the nematode (steinernema feltia). Applications should be made 2 weeks after the first craneflies have been spotted.
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The parasitic wasp Encarsia formosa is a very effective way to control whitefly supplied as pupae on cards which are simply hung in a shady position throughout the crop, level with the lower leaves of the plants supplied as a repeat programme of Encarsia formosa, every two weeks over a six week period to ensure the pest is continually controlled.
more information |
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