Helping Insects Helps Us All

Painted Lady Butterfly on Hidcote Pink Penstemon
in author's garden, August 2021

Humans Need Nature

Many plants and animals are struggling because of climate change.  Some are in danger of going extinct, yet we all depend on them to help us stop climate change getting worse.

Plants have a central role in regulating our climate, which is why we need large numbers of many different plants to mitigate global warming and keep our environment healthy.  All plants absorb CO2, not just trees. 

The destruction of the Earth’s vegetation, by felling forests,  draining wet lands, building on scrub and grassland etc is making global warming worse. If we don't stop the destruction we will suffer even greater climate change than we are already. All kinds of animals have helped to create these landscapes and keep them healthy. Insects alone play a crucial role.

We Need Insects

‘If we and the rest of the back-boned animals were to disappear overnight, the rest of the world would get on pretty well. But if the invertebrates were to disappear, the world’s ecosystems would collapse.’ -  Sir David Attenborough

Almost 90% of the world's wild plants depend on animal pollination as do 75% of the most important crops globally. 

Over 100,000 invertebrates, including ants, bees, butterflies, beetles, flies, moths and wasps, along with more than a thousand mammals, birds, reptiles, and amphibians take on the job of pollinating plants. This biodiverse group of wildlife buzzes, flutters, and creeps from plant to plant, dining on protein-rich pollen and high-energy nectar. As they move, they transport and deposit pollen, fertilizing plants and allowing those plants to reproduce.

If we destroy insects and other invertebrates by destroying their habitats and poisoning them with pesticides, weedkillers and any other toxic chemicals they won't be able to keep the flowers that depend on them alive. It will also make it difficult to grow many crops. 

Birds, bats and many other animals depend on invertebrates for food. This is another reason why there needs to be an abundant supply. All life depends on all other life. If too many creatures go extinct we will all start to feel the affects.  

This is why we need sweeping reforms of how all land is managed, from large farms and estates to local parks and roadside verges. Until that happens all ordinary individuals can change is what happens in our gardens or any other outdoor space we manage, even if it's only a window box.

Giving Back to Wildlife

You might have heard of No Mow May. The idea behind this initiative from Plantlife is to encourage as many people as possible to leave a suitable area of grass to grow long, preferably all Summer, to allow wildflowers to grow and set seed, but also to enable insects and other animals which live in long grass, and wildflower meadows to thrive. When we are able to do this in part of our gardens, we are helping to replace the meadows and grasslands, which have been destroyed to make way for human "progress" over the last centuries. Our own houses might well have been built on them. 

My parents always bought new houses, so all the homes I inhabited as a child were probably built on natural or semi-natural spaces. The house I have returned to live in was built on erstwhile strawberry fields, but before that it might have been meadow or more likely woodland as there was a small copse nearby when I was growing up, now mostly built on. Many of the fields of my childhood have been built on too, some very recently. A growing population does need somewhere to live, but it would be good if all of us could give something back to help nature, which is why I've been letting my lawn grow long and doing other things to help pollinators.

In my last garden I finally persuaded my husband to stop using weedkillers and pesticides after living in the house for ten years. We noticed the difference within a year or two. There were a lot more birds, bees ad butterflies in the garden and grasshoppers became noticeable in the grass. More recently we started letting part of the lawn grow long there and stopped pulling out all the weeds. During lockdown I noticed shield bugs on the garlic mustard. Some were hawthorn shield bugs, presumably attracted by the hawthorn in our established hedge, planted by previous owners. I also started noticing the different types of hoverflies and native bees.

Pollinators are very important insects, so here a some suggestions for how we can help them:

How to Help Pollinators

1. Leave some grass to grow long over the Summer, if possible.
2. Don't use pesticides or herbicides, both of which can kill insects & other invertebrates and are very probably harmful to humans, pets and other animals too.
3. Grow different types of flowers, some flat shapes like Daisies and Verbena bonariensus, bell shapes, tube shapes like Penstemons, Foxgloves and Fuchsia, spikes like Lavender, Nepeta and Salvias etc. Different insects are different sizes and have different types of tongues.
4. If you don't have a garden you could grow smaller varieties in a window box or pot.
5. Deadhead flowers, mulch with organic compost, and water well to keep the plants healthy and flowering for longer.
6. Try to provide flowers from early Spring through to late Autumn.
7. Leave corners of your garden to provide habitats.
8. Buy peat Free Compost. Peat bogs are home to many special animals and plants, including the Large Heath butterfly, which is declining across Europe. There are now good alternatives to peat available from garden centres.
9. Join in the Great Big Butterfly Count, an event organised by the Butterfly Conservation Trust which is happening now until the 6th August this year. It happens around the same time every year to monitor the state of the UK's declining butterfly population.

Are you doing some of these things already? Perhaps you'd like to pass on some tips. What else can we do to help pollinators and other insects? Let us know in the comments.