Gardening

We have a killer in our garden pond! Over the course of the last few summers we have spotted both damsel and dragonflies around the pond without really thinking much more about it. Sure, the dragons are impressive beasts, almost the size of a small bird, and their ability to manoeuvre so quickly in mid air is hard to believe unless you see it close up. They have quite short lives as adults so it is easy to ignore the question of where they come from and how they grew to be such beauties. But spend time sitting next to a healthy garden pond in the early months of Summer and you may get to see exactly where they come from, where they have indeed spent most of their lives before taking to the air. During the course of sitting at my observation seat by our pond I had already spotted the tail of what I originally thought might be a newt beneath the water but the absence of any tadpoles earlier in the year eventually led me to the conclusion that I was looking at a nymph, the young form, of either a damsel or a dragonfly.

The time is right, so thinks the nymph, as he crawls up the stem of an overhanging plant or a reed until he is far enough from the water to begin his transformation. What squeezes out of the nymph's body is something far bigger, with a long black and yellow body and clear inflatable wings which are initially kept close by the body. This creature climbs a short distance away leaving the nymph carcass, a brown unattractive thing, dried out and hanging. The new creature's wings are pumped up using fluids from its body until they can be spread out at right angles to catch the sun which helps them dry out and solidify. This all takes a while but already he has learnt the skill of hanging on when the stem wobbles about in the wind. Soon he or she will fly off, maybe grabbing a bite to eat on the wing, before seeking out a mate who is equally attracted to the pond and willing to begin another generation of dragons.

Despite the surface of our pond being almost covered by a layer of algae, which is certainly not the most attractive look to human eyes, when seen through the eyes of an insect it is clearly a healthy environment, suitable for some breeding and also providing food for the youngsters. The nymphs are underwater killers and they can live for years in that form before emerging, so there must be a supply of food for them during that period. We can only imagine what triggers their emergence from the water but as I write there are at least three nymph bodies that can be seen and two fully grown dragonflies are hanging near them preparing themselves for their first ever lift off. What has happened, without any human intervention, is that nature has created a dragonfly breeding ground, right in our garden.

As for the algae, I must confess to having introduced a 'walk' of five Ramshorn snails (note the collective noun) with a view to controlling this. Yes, you can buy them online and they arrive in a bag ready to go. 

The first order got lost somewhere and never arrived; we are saddened to think of their ultimate fate. Perhaps the 'Live Creatures' sign was a bit too scary or maybe they were taken to a zoo somewhere. A second order arrived safely and they seemed happy when released into the pond and disappeared quickly beneath the algae. If they survive, something I may never know, then perhaps either they or their offspring might one day run out of algae to eat, giving me a clear view of the bottom of the pond again. [Update: Snail just spotted alive and well.]

On to the next project. Looking back at an estate agent's picture of the back of our house there is a length of solid looking decking surrounded by a wooden railing. One can only guess that this was created as a 'sitting out' area, a place where the owners could catch the evening sun before it disappears behind the hill. But we have never used it as such, perhaps largely because we are discouraged by the healthy midge population that live close by and come out for a feed whenever the wind drops sufficiently for them to fly. In any event there was clear evidence of rot in the decking timbers which rendered it rather unsafe to walk on. So we thought let's rip it up.

We soon discover, however, that this will be a major physical exercise since it is largely held together with long screws that are too rusted to extract. Instead we have to slice the decking up into pieces using a powerful circular saw then wrench each section free from the supporting posts. These are lengths of a reclaimed BT telegraph pole, impregnated with stinky creosote, and have been concreted into deep holes in the ground. It is hot and smelly work but gradually, section by section the decking disappears so it can be carted away to the local tip.

To do this means that each section has to be small enough to fit into our small trailer without overloading it too much then the pieces lashed down so they don't fall out on the journey to the local recycling centre. The wood is sodden, much of it crumbling into dust, and it takes five loads in total before the job is done. We no longer have decking we don't use and all we are left with is the decision about what to do with the space beside the house which is seeing the light of day for the first time in years.