Biological Pest Control: Nematodes As A Chemical-Free Option

Placement decides whether the house gets used at all. A fixed position at around waist to head height, facing south or south-east to catch the morning sun, and sheltered from driving rain and strong wind, gives insects the stable conditions they need. Once occupied, the house is best left undisturbed through the nesting and overwintering period.

Whole peanuts should be avoided if fledglings are likely to be fed them directly, as they present a choking risk; a mesh feeder that breaks nuts into smaller pieces is the safer option. Hygiene is just as important as food choice: cleaning feeders regularly and moving their position from time to time helps reduce the build-up of bacteria that can spread between visiting birds.

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.

Native hedging is a strong starting point. Hawthorn and holly, for example, provide dense shelter and nesting sites through spring and summer, then carry berries into autumn and winter when other food is scarce. Nectar-rich perennials planted alongside give pollinators a working food source through the growing season rather than a single short burst.

A pond set up with the right planting and shelter from the outset tends to attract amphibians naturally over time. Many gardeners begin with a considered selection of pond wildlife equipment chosen to suit the size of pond they are working with.

Feeding is straightforward but worth getting right. Meaty cat or dog food, or a specialist hedgehog houses food, is a better choice than bread and milk, which can cause digestive upset. A shallow dish of fresh water left out overnight is just as useful as food, particularly during dry spells in summer.