Posted in Allotment, nature

Build it and They Will Come

August disappeared quickly and September is zooming by, even the Autumn equinox has been and gone. Apart from the heatwave a few weeks ago (with the highest temperatures of the year being reached) it is beginning to feel autumnal. Fungi has appeared, leaves have started turning, plus nights are drawing in and cooler misty mornings have returned highlighting once hidden spiders and their cobwebs.

Foraging blackberries had begun early this year but the extreme heat meant that the remaining flowers and berries dried up; the same is true of elderberries, although sloes, haws, rosehips and rowan berries are abundant. Unlike last year, apple and pear trees, that I see regularly, have struggled with the weather this year as well. Thankfully harvesting on the allotment is still going strong; potatoes, kale, beetroot, radishes, chillies, courgettes and rhubarb have been keeping us fed. The popping corn will soon be ready too. I have also been harvesting calendula, lavender and other herbs recently.

There has been a few changes on my plot. I had finally collected enough items to be able to construct ‘the bug snug’. 

It is an addition to the wildlife section containing wildflowers and long grass (which also links to a pond on the adjoining plot). I know we have a couple of frogs visiting us so hopefully it encourages more to inhabit our allotment (to help keep slug and snail population down). I still hear the grasshopper when we are nearby too. There has also been evidence of a fox visitor; random toys get left near the water I leave out, along with poo on the grassy paths between plots.

Last week I also noticed that the Bee house, at the opposite end of the plot, was finally being used.

I found it hard to contain my excitement as it has been there for a few years and I was beginning to think it would never be used. There is evidence that it has been used by a Leaf-cutter bee and Mason bees too. Although it is difficult to know which ones specifically, the most commonly found in gardens are the Patchwork leaf-cutter bees (Megachile centuncularis) and Red mason bees (Osmia bicornis). As the name suggests Leaf-cutter bees used leaf particles to plug one piece of bamboo while those used by the Mason bees were plugged with soil. Each cell contains larvae as well as some pollen and nectar for the developing young. Male bees fly out before the females as they are near the entrance. The developing bees will remain there over winter and emerge as adults next spring, at the around April.

In other news… While clearing a gravel footpath of wildflowers at work, I accidentally disturbed a Devil’s coach-horse beetle (Staphylinus olens). I stopped weeding that section to enable it to hide for the rest of the day.

Devil’s coach-horse beetle

These beetles can raise their abdomens (resembling a scorpion), release an odour and even bite when they need to defend themselves (thankfully it didn’t feel threatened by my presence). They grow up to 2cms 8mm in length and are commonly found in gardens from April till October (when accidentally disturbed as they are active at night). The young overwinter in the soil as pupae until the following spring when they emerge as adults. The adults can fly but usually quickly run away from danger or to catch prey eating larvae, insects, spiders and slugs.

The Big butterfly count results came out this month. The long term trend of many species of butterfly and daytime flying moths recorded continue to fall, although the numbers were the highest since 2022 (with an average of 12 butterflies being spotted compared to 9 back then). The most commonly recorded were Red admiral (Vanessa atalanta), Gatekeeper (Pyronia tithonus), Small and Large whites (Pieris rapae and Pieris brassicae) as well as Holly blue (Celastrina argiolus). While those which are in significant decline are Ringlet (Aphantopus hyperantus), Common blue (Polyommatus icarus) and Speckled wood (Pararge aegeria). Over the last few days I have seen several Red admirals and even one Speckled wood making the most of the Autumn sun.

Upon visiting the Chiltern Open Air museum on the last bank holiday weekend, we walked through the meadow and woodland that is there. In the woodland, a couple of Silver-washed fritillary (Argynnis paphia) butterflies fluttered in amongst the brambles (the flowers of which give nectar for these fritillaries along with thistle blooms.

Silver-washed Fritillary

There were lots of Dog violets (Viola riviniana) on the woodland floor too, which is the food source for their caterpillars. The wingspan of this butterfly is between 7.2cms and 7cms 6mm. They are found in most areas of the UK (apart from Scotland) and often in oak woodland.

The meadow was full of wildflowers, but it was particularly lovely to see
Harebell (Campanula rotundifolia) and Wild basil (Clinopodium vulgare) amongst them.

Harebell

The delicate looking Harebells bloom from late summer into autumn. They can be used as an indicator of dry nutrient poor chalky limestone soil which they require to thrive. Along with dry undisturbed grassland and heathland Harebells will flower in walls, cliffs and even on sand dunes.

Wild basil

Wild basil is a mound forming perennial which also likes the same soil conditions as the Harebell. This wildflower can be seen blooming in July, August and September.

It was lovely to see Tansy (Tanacetum vulgare) growing in the wild too; found in a few areas including near the iron age roundhouse located on the museum grounds.

Tansy

It starts flowering in July through to October. While used as an insect repellent to keep ants and flies away, some insects, especially the Tansy beetle (Chrysolina graminis) are resistant to the toxins produced by the plant. Tansy beetles are endangered in the UK; only found in two places in York along the River Ouse and in Cambridgeshire at the Woodwalton Fen nature reserve. We are at risk of losing this once common beetle due to habitat loss (wetlands), where their entire lifecycle occurs, and loss of suitable food source (mainly Tansy); however in the Fens its been seen eating Water mint (Mentha aquatica) and Gypsywort (Lycopus europaeus) too. It’s conservation status is known to be Nationally Scarce and is a
UK BAP priority species that is
Protected in the UK under the Wildlife and Countryside Act, 1981.  More can be found on this beautiful beetle on the Buglife website (see web pages below), including how to help with its conservation.

The Tansy beetle

Tansy beetle conservation

Posted in nature

What a Difference a Month Makes

A month ago I had a weeks holiday. Signs of autumn were beginning to mingle with late summer. Now October is here autumn has definitely arrived.

As I had another week off I decided to revisit my local park, observing changes from a month ago.

In September Roesel’s bush crickets (Metrioptera roeselii) were chirping everywhere, butterflies were flitting about and some flowers still bloomed amongst the meadow (see Relaxing into Autumn).

Upon my return last Tuesday the only sounds I heard were birds singing and the meadow area had been cut and baled. Cobwebs were visible in the long dew dampened grass around the edges of the woodland too.

Hawkweed, Ragwort (Jacobaea vulgaris), Red clover (Trifolium pratense) and Yarrow (Achillea millefolium) were only just flowering still while the Ivy (Hedera) was in full bloom.

Ivy is fantastic for pollinators at this of year. I saw a few hoverflies flying to and from several flowers but the Honey bees (Apis mellifera), that were still active from the nearby hives would probably visit them too.

It was lovely to see dried seedheads of Wild carrot (Daucus carota)

and Cow parsley (Anthriscus sylvestris)

as I wondered around the park. They look beautiful but they are useful for insects to shelter in as well. In fact I noticed a ladybird snuggling amongst one of the Cow parsley seedheads. I also discovered field mushrooms (Agaricus campestris) growing amongst the grass.

Trees and shrubs were starting to show autumnal colours along with their ripe fruits. I found elderberries, sloe as well as haws on the Hawthorn (Crataegus monogyna) alongside Rosehips. However there were no longer any blackberries left on the brambles.

I noticed the leaves of one Horse chestnut tree (Aesculus hippocastanum) affected by the Horse chestnut leaf miner (Cameraria ohridella) moth.

Similarly there was evidence of caterpillars (most likely another moth) having been on a Silver maple (Acer saccharinum) tree.

The eggs and excrement are still visible on the nibbled leaves.

I ended my weeks holiday with a visit the Horniman museum in London.

On route to the train station I saw a Brown rat (Rattus norvegicus) running across a path. It attempted to cross the road until either the traffic or pedestrians scared it into fleeing towards a nearby hedge. Once I arrived in London I realised that I never see rats in the underground any more. I used to enjoy seeing them scurrying between the tracks. I have owned pet rats for many years so I find wild rats intriguing. I also like to watch Squirrels as rodents tend to act in similar ways to one another. After lunch I observed two Grey Squirrels (Sciurus carolinensis) scamper about.

The nearest squirrel had an acorn in its mouth and appeared to bury it in different places. I once saw a television programme on squirrels in which one was observed ‘pretending’ to bury a nut in several places while in the presence of other squirrels to avoid their stash being taken. Presumably this was occurring with the squirrels I was watching on Friday.

There is a butterfly house and aquarium at the Horniman museum. The butterflies were looking a little aged with their wings rather worn, however they were still beautiful. As soon as I entered the butterfly house a Malachite butterfly (Siproeta stelenes) landed on me which felt wonderfully welcoming.

The photo below shows a selection of the many butterflies I saw.

Feeding on the fruit are one Blue morpho (Morpho peleides), one Brown clipper (Parthenos Sylvia philippinensis), two Blue clipper (Parthenos Sylvia) and three Owl butterflies (Caligo memnon).

There were lots to see in the aquarium as well but my favourites were the White spotted jellyfish (Phyllorhiza punctata); watching them was so relaxing.

Even at the weekend nature was visible. As I ate breakfast on Saturday morning I heard and watched a group of Coal tits (Periparus ater) on the Rowan tree (Sorbus aucuparia) outside. I have never seen Coal tits on this tree before, I hope to see them again.

Another animal I became aware of last week was a Red fox (Vulpes vulpes). I first noticed it on my way home on Wednesday night and again on Sunday morning. It was making itself known on Saturday night too as it was being very vocal.