Biological Pest Control: Nematodes As A Chemical-Free Option

Design has a big influence on how well a pond gets used. A shallow, gently sloping edge, sometimes called a beach area, lets amphibians and insects get in and out easily, and gives small mammals that fall in an escape route rather than a hazard. Planting in distinct zones, marginal plants at the shallow edge, floating plants across the surface, and oxygenating plants below, gives different creatures the cover and conditions they need.

Insects overwinter too, tucked into log piles, leaf litter and insect houses left undisturbed until spring. Gardeners preparing shelter ahead of the colder months often look at buy hedgehog houses online options early, so everything is in place before the weather turns.

Not every beneficial garden insect lives in a hive or a colony. Many UK bee species are solitary, nesting alone or in loose aggregations, and insects such as lacewings and ladybirds shelter individually or in small clusters, particularly over winter. An insect house gives these species something a tidy garden furniture often lacks: safe, undisturbed nesting and overwintering space.

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.

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.

Shelter is often overlooked. Many UK bee species are solitary rather than hive-dwelling, and a patch of bare, undisturbed soil in a sunny spot can serve as nesting ground for mining bees, while hollow stems and drilled wood blocks suit species that nest above ground. Choosing biological pest control over chemical sprays around flowering borders also helps protect the insects visiting them.