July 28, 2011 § 10 Comments
This blog post, planned for weeks, was supposed to be a warm and cosy one, coming to you from my kitchen. It was going to be about growing and pickling my own chillies, something I’ve been doing for years.
However, this comfortable, domestic idea was swept aside when, after noticing that the chilli leaves were a little mottled, I started looking at them with a loupe. I suspected an infestation of red spider mite (which loves the hot dry conditions in our conservatory). This tiny pest is usually deterred by frequent misting with water — but not in this case, it seemed. A closer look was required.
When magnified eight times, the surfaces of the leaves showed themselves to be thronged with livestock. I knew that there would be plenty of aphids (those are easily seen with the naked eye), but I could not see a single red spider mite — minute eight-legged characters that look like the tiniest ticks imaginable. However, rambling between the aphids were small green sausages on legs. Thrips! I had thrips! A new pest! It was exciting and disgusting in equal measure.
I can’t show you a thrip, as they are too small for my camera lens to capture, but I can show you the damage that their larval sausages do, when they rasp away at the leaves with their mouthparts.
I’ve nearly defeated them by spraying the afflicted plants regularly with insecticidal soap, an organic pesticide suitable for soft-bodied pests. I don’t use any sprays in the garden, as matters there are generally kept under control by the higher-ups on the food ladder eating the lower-downs. And I don’t want to harm any beneficial insects. But, indoors is a different environment. Pests increase rapidly in the heat, and I don’t have birds, hoverflies, ladybirds or other predators to keep order.
Or do I? Recent leaf inspections have shown an increasing number of mummified aphids. A few weeks ago, I had noticed one of these characteristic items, which look like bronze aphid statues, on a chilli plant that was a gift from organic grower Madeline McKeever at Brown Envelope Seeds.
Aphids such as this have been parasitised by a tiny wasp. The female injects an egg into an aphid, and when the larva hatches, it consumes the insect from the inside out. Next, it pupates inside the empty body, and finally, hatches out, leaving a neat round porthole where it exits. Females lay 100 to 300 eggs during their two-week adult phase.
The wasp is so small that it could be mistaken for a fungus fly, but it flits around the leaves of a plant, rather than above the compost or soil.
At present, on the chillies that I treated only once or twice with the insecticidal soap, there are aphid mummies all over the undersides of the leaves, like precious bronze decorations.
This is far more exciting than thrips, which fortunately haven’t reached this side of the conservatory yet. While taking the above photos, I came across a fly on one of the chilli plants. It has nothing to do with this story, but here are two portraits anyway, as I think it is a fine-looking creature. In the first one, it is eating something on the faded flower (aphid honeydew, perhaps), and in the second, it is rubbing its “hands” together in that annoying way that flies have.
September 27, 2010 § 6 Comments
In my last (and first) post here, I mentioned that I gardened, not for other people, but for myself and the various creatures that live outside the front and back doors. In just a few hundred words I managed to sound holier-than-thou in a lonesome communing-with-nature way, while also giving the impression that I am dismissive of those who garden for other people. What a great start to a blog.
The truth is that I am constantly and hugely grateful to gardeners who welcome other people onto their plots. They are benign and brave souls. It takes courage to open your garden to scrutiny — and to the inevitable criticism that pours merrily out of visitors’ mouths. Or is that just Irish visitors? Are garden visitors in other countries less bent on picking holes, and more interested in immersing themselves in the experience, and in trying to understand what the gardener is doing? (Having said that, there are a few owners who open their properties with the sole intention of securing tax relief, which is a little mean-spirited. But more on that another time.)
In the main, people who open their gardens are generous humans, giving freely of information, and often of plants or cuttings. Some of my favourite plants were gifts from other gardeners, or were purchases at their sales tables. These are often varieties that are not seen at garden centres, because they might be difficult to transport, or tricky to propagate on a commercial scale, or they may be ugly ducklings while in the pot (turning into beauteous swans only when they get into the ground). Or — best of all — they might be strains that are local to that particular garden or locale, carrying a unique and historic set of genes in their green fabric.
At the end of August I visited Ballymaloe Cookery School gardens in east Cork, and Tanguy de Toulgoët’s Dunmore Country School garden in Durrow, Co Laois on the same day. Both gardens are doing the same thing: growing good food, using organic systems. But the methods are quite different. At Ballymaloe, for instance, seedlings are started in modules, under artificial lights; and in Tanguy’s Laois garden, seeds are germinated in seed beds in the polytunnel. At Ballymaloe there is an acre of greenhouses (lucky them!), and in Laois, an acre is the size of the entire garden. The greatest difference I noticed, however, was the climate. The two places are only 130km (80 miles) apart as the crow flies, yet it was like stepping from early autumn in Ballymaloe to mid-summer in Durrow. The first has a coastal temperate climate, whereas the second is much more continental.
Our small island of Ireland has hundreds of gardens that are open to the public — where an overwhelming amount of growing goes on. When I’m not being lonely and mawkish in my own garden, I’m usually snooping around someone else’s.
SNAP DU JOUR