Biological Pest Control: Nematodes As A Chemical-Free Option

Easy access matters most. A shallow, gently sloping edge lets amphibians move in and out of the water without difficulty, while steep, hard-edged ponds can be surprisingly difficult for them to use. Nearby damp, shady spots, a log pile or a compost heap close to the pond, give them somewhere to shelter and hibernate once they leave the water for the colder months.

Bees and other pollinating insects rely on gardens for a large share of their food, especially in built-up areas where wildflower meadows are scarce. A garden that offers flowers from early spring right through to autumn does far more for pollinators than one with a single showy burst of colour in June.

Leaving a few deliberately untidy corners does more good than a uniformly neat border. A patch of long grass, a stack of logs left to slowly rot down, and leaf litter left in place over winter all provide shelter for insects, amphibians and small mammals that a fully cleared garden simply cannot offer.

Sited well and left in peace, an insect house can become a genuinely busy part of the Garden Wildlife UK. Many gardeners start by comparing a few insect houses before choosing one to match the space available.

Nematodes are microscopic roundworms that occur naturally in soil, and certain species have been developed for use against specific garden pests. Rather than acting as a broad chemical treatment, each nematode species is matched to a particular pest, seeking it out and interrupting its lifecycle with far less impact on the rest of the garden than a chemical spray.

Wildlife value in a garden comes as much from layout as from individual plant choices. A layered structure, trees or large shrubs at the back, mid-height planting beneath, and ground cover or climbers filling the gaps, mimics the natural habitat edges that many species evolved to use, giving insects, birds and small mammals shelter at every level.