Friendly Gardening

BugLifeWildlifeGardening

I had an email this morning from Buglife, reminding me that I should be planning my garden for the coming spring and summer with due regard for our bees and other insects.

As my readers will surely know by now, I love insects and other invertebrates, and in particular I love hoverflies. I even have a soft spot for spiders, which my Other Half regards as a bit of a double edged sword, because though I will remove spiders from his vicinity and relocate them outdoors, I am also tolerant of their presence and seldom actually do so unless he asks me. Don’t tell him, but there’s an interesting little guy living in a pot in our conservatory, and I’m waiting at least until I can photograph and identify him before I want to even consider removing him. Besides, he eats the weevils that we managed to import with some bird food and which now appear to have colonised the conservatory1.

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Rice Weevil, Sitophilus oryzae

So I took a look at the Buglife page about wild-life gardening and took a screenshot to post on the Sparking Synapse Facebook page with a link to their site. It has some useful tips, and it’s well worth considering. A manicured garden is all very lovely – and fair enough, many people just want the pretty flowers and the smooth lawn – but it does little for wildlife, and since most farmers these days are also doing very little for wildlife2, those of us with gardens really need to think about taking up the slack.

What’s in it for you? Well, I’m willing to bet that you don’t much care for aphids, am I right? Inviting hoverflies into your garden will take care of that for you, because there are dozens of the little darlings whose larvae eat quite prodigious amounts of the blighters. My roses had a grand total of no aphids at all last year, not after the hoverflies found them. Providing a safe place for hedgehogs to hibernate, and water for them to drink, will help to rid your garden of snails and slugs. Allowing Leopard slugs to live peacefully on your property will also help to control these pests, because Leopard slugs will not destroy your plants, but do clean up decaying matter, and also eat other slugs.

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Hoverfly larva eating an aphid

So, how do you start? Well, if you grow vegetables, consider allowing a few of each to flower; many (eg carrots, fennel, and brassicas) are very attractive to insects, and if you have space for it, a single plant of angelica will feed huge numbers of bees and hoverflies. Perhaps you have ivy in your garden? It might be a pain when it gets out of control, but if you let it climb up a fence and retain some older strands when you clip it (twine them in or peg them back), the pollinators will love you for it in the autumn when little else is in flower. Also, a dense, intertwined layer of evergreen foliage like this is invaluable as a place to hibernate for insects like ladybirds – which also have larvae that are very keen on aphids for lunch – not to mention breakfast, dinner and supper. Wasps will also feed on ivy, but before you say anything, remember that wasps are valuable pollinators, too, and actually kill large numbers of insect pests, carrying them back to their nests to feed their young.

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An Eristalis sp hoverfly feeding on ivy

A source of water is useful for many creatures. Keep it clean for birds, but if you have an out-of-the-way corner, you can create a hoverfly lagoon with a small container of stagnant water full of decaying grass and leaves3.

You’d be surprised at what resources some beneficial insects need. There are hoverflies which love to feed on grass pollen and others which lay their eggs in rot holes in trees. There are bees which nest in bare earth and others which like to use old bird boxes. Some of our rare beetles need decaying wood lying around on the ground. And there are many tiny creatures which over-winter in drifts or piles of dead leaves – so it won’t surprise you to learn that having filled my garden incinerator with leaves and other combustible debris, I can’t bring myself to set light to it in case there are spiders, beetles, bees and so on living inside it.

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A small caterpillar found in leaf litter in January

There is also a hoverfly which lays its eggs in active wasps nests, but I’m not suggesting you keep one of those handy in your garden shed with the door left considerately open. All you need to remember is that a wild patch in your garden, dandelions left unmolested in your lawn and a little dead wood and garden litter left here and there, will help some of our most neglected wildlife survive and complete their life-cycles. If you can also dedicate some of your space to pollen-rich flowers, so much the better because many of the showier hybrid versions of old-fashioned flowers have virtually no nectar to give. Choose original versions or proven pollinator-friendly flowers and shrubs if you can, single flowers rather than double, etc. Chocolate-coloured primroses, PomPom dahlias or big, showy Spanish bluebells may look wonderful to you, but won’t be much visited by insects.

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A small solitary bee feeding on dandelion, Lassioglossum sp

1 I won’t use poisons if I can possibly help it. As far as I’m concerned, they are an unnecessary danger to other, more welcome, life-forms including my grandchildren and my dogs.

2 Wildflowers are disappearing from our countryside at an alarming rate as farmers feel the need to plough right up to the edges of their fields to maximise their crop yields. Not all farmers. Some are enlightened and considerate, and even if they do use pesticides (which are incredibly destructive to invertebrates – after all, that is their job) will leave an area wild to make up for it. Kudos to those people!

3 The Buzz Club’s Hoverfly Lagoon Project gives details on how to make one of these and if you are also willing to record the activity, that would be great! But they can smell a bit so you’ll need a site somewhere away from the house.

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