September 22, 2023

Purple Loosestrife

The beautiful cerise-purple spikes, mentioned in the poem by Robert Byron below, have been in flower since June, and the plant will still give pleasure in the autumn when the willow-like leaves turn russet.


Purple loosestrife takes your cares away, as its name suggests. And it provides nectar for lots of long-tongued insects like red-tailed bumblebees, brimstone butterflies, and hawk-moths and hoverflies.



While an invasive weed in America, where it found its way a few hundred years ago, perhaps caught in wool bales, here some very specific insects stop it getting rampant. The leaves are eaten by the larvae of the loosestrife beetle, the roots munched by the loosestrife root weevil, and the flowers eaten by the larvae of the loosestrife flower weevil.



Links to further information and images


Bug Woman – Wednesday Weed – Purple Loosestrife


The Wildlife Trusts – Purple Loosestrife


All These I Learnt

by Robert Byron

 

If I have a son, he shall salute the lords and ladies who unfurl green hoods to the March rains, and shall know them afterwards by their scarlet fruit.

He shall know the celandine, and the frigid, sightless flowers of the woods, spurge and spurge laurel, dogs’ mercury, wood- sorrel and queer four-leaved herb-paris fit to trim a bonnet with its purple dot.

He shall see the marshes gold with flags and kingcups and find shepherd’s purse on a slag-heap.

He shall know the tree-flowers, scented lime-tassels, blood- pink larch-tufts, white strands of the Spanish chestnut and tattered oak- plumes.

He shall know orchids, mauve-winged bees and claret-coloured flies climbing up from mottled leaves.

He shall see June red and white with ragged robin and cow parsley and the two campions.

He shall tell a dandelion from sow thistle or goat’s beard. He shall know the field flowers, lady’s bedstraw and lady’s slipper, purple mallow, blue chicory and the cranesbills – dusky, bloody, and blue as heaven.

In the cool summer wind he shall listen to the rattle of harebells against the whistle of a distant train, shall watch clover blush and scabious nod, pinch the ample veitches, and savour the virgin turf.

He shall know grasses, timothy and wag -wanton, and dust his finger- tips in Yorkshire fog.

By the river he shall know pink willow-herb and purple pikes of loosestrife, and the sweetshop smell of water- mint where the rat dives silently from its hole.

He shall know the velvet leaves and yellow spike of the old dowager, mullein, recognise the whole company of thistles, and greet the relatives of the nettle, wound-wort and hore- hound, yellow rattle, betony, bugle and archangel. In autumn, he shall know the hedge lanterns, hips and haws and bryony.

At Christmas he shall climb an old apple-tree for mistletoe, and know whom to kiss and how.

He shall know the butterflies that suck the brambles, common whites and marbled white, orange- tip, brimstone, and the carnivorous clouded yellows.

He shall watch fritillaries, pearl-bordered and silver-washed, flit like fireballs across the sunlit rides. He shall see that family of capitalists, peacock, painted lady, red admiral and the tortoiseshells, uncurl their trunks to suck blood from bruised plums, while the purple emperor and white admiral glut themselves on the bowels of a rabbit.

He shall know the jagged comma, printed with a white c, the manx-tailed iridescent hair-streaks, and the skippers demure as charwomen on Monday morning.

He shall run to the glint of silver on a chalk-hill blue – glint of a breeze on water beneath an open sky – and shall follow the brown explorers, meadow brown, brown argus, speckled wood and ringlet.

He shall see death and revolution in the burnet moth, black and red, crawling from a house of yellow talc tied half-way up a tall grass.

He shall know more rational moths, who like the night, the gaudy tigers, cream-spot and scarlet, and the red and yellow underwings.

He shall hear the humming-bird hawk moth arrive like an air- raid on the garden at dusk, and know the other hawks, pink sleek-bodied elephant, poplar, lime, and death’s head.

He shall count the pinions of the plume moths, and find the large emerald waiting in the rain-dewed grass.

All these I learnt when I was a child and each recalls a place or occasion that might otherwise be lost.

They were my own discoveries.

They taught me to look at the world with my own eyes and with attention.

They gave me a first content with the universe.

Town-dwellers lack this intimate content, but my son shall have it!


September 12, 2023

Shimmering webs

On a moist and misty autumnal morning, you are bound to notice myriads of dew-laden webs, particularly as they sparkle in the rays from the rising sun.

Spiders from different families weave different sorts. Some webs are simple sheets, some tangled masses,



















while others are beautifully complex, two-dimensional radiating structures. The first two types are true cobwebs (from ‘coppe’, the old English name for a spider), while the last (a typical cartoon web) is just a ‘spider’s web’ 

Our garden spider (Araneus diadematus), or cross spider, is an orb-weaver, the female spinning amazing webs of the third type at night. Every few days she will make a new web in a couple of hours, as the previous one looses its stickiness, but will recycle the old one by eating it. Her web needs about 20m of silk for a span of around 40cm and will weigh less than a thousandth of a gram.



At this time of year she is fat and full of eggs (another name is pumpkin spider), and will wait patiently at the centre of her web or at the edge (while holding on to a signal thread) until she feels the vibration of a stuck fly or other insect, which she will then wrap up for a tasty snack later. She will lay her eggs (500 or so) in a yellow silk sac, her spiderlings emerging next Spring, but staying together in a golden ball until their first moult, and only reaching maturity to continue the cycle the following year.

Links to further information and images

Buglife: garden cross spider

Natural History Museum: spider webs


 

 

 

White dead-nettle

White dead-nettles in foreground, stinging nettles at back right Patches of stinging nettles are left around the Reserve for the benefit of ...