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Cultivation activities not only affect
the garden itself and its immediate surroundings but they
can also have an impact on the environment and wildlife much
further away. Careful choice of activities and materials can
reduce this impact.
Avoiding harmful chemicals
Pesticides, weedkillers and fertilisers may contain chemicals
that are poisonous to wildlife, damage the structure of the
soil and pollute nearby water sources. Various horticultural
techniques can reduce the need to apply chemicals.
• use home-made compost rather than liquid fertilisers
• hand weed or hoe regularly to prevent a build-up of weeds
• use mulches to reduce weed seed germination and improve
soil fertility
• dilute solutions of washing-up liquid are effective against
greenfly and blackfly but are harmless to the environment
• try trapping pests; for example, sink shallow containers
filled with beer into the ground to attract slugs or use
sticky traps, baited with attractant chemicals, to catch
tortrix moths
• various plants will repel pests; nasturtiums and French
marigolds deter whitefly and greenfly, basil repels ants
• barriers around plants may protect them against pests;
a layer of sharp grit will deter slugs, whilst a collar
placed around cabbage stems at ground level stops cabbage
root fly
•encourage or introduce the natural enemies of garden pests
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