Bugs on Plants

-

 I noticed a couple of cases of "bugs on plants" yesterday and thought it was worth a comment.

The first example is of an infestation on a red campion plant. This is what a healthy red campion flower looks like.

Walking through the meadow I noticed that a few of the plants were suffering from an infestation. The following photos will show you what I mean.


I think these bugs are black fly - a type of aphid. Aphids are sap sucking insects . There are at least 600 species of aphid in Britain and I'm not about to attempt to pin point these. Gardeners find them a pest and they are preyed on by ladybirds (the aphids not the gardeners!).

Looking across the meadow I noticed several plants with "cuckoo spit" on them. This is nothing to do with cuckoos but occurs about the same time as cuckoos are about. The froth is caused by the larva of frog hopper bugs and they take in the sap of the plant through their mouths and blow the froth out through their anuses. The resulting froth acts as cover so that the larva are not predated by birds whilst they are developing.



And if you carefully brush away the froth there is a tiny bug inside.



                                                                                Diary

I caught a train from Kirkby Stephen Station today. I was looking forward to photographing the house martins nesting as there are usually dozens of them.  There were only a handful today, and it looks as if somebody has destroyed the old mud nests to discourage them - I do hope not and that there is some other explanation!
Moth trap produced a couple of poplar hawk moth, a cockchafer , and a couple of pale ermine moths amongst another half dozen assorted brown jobs.
A nice clip of a roebuck on the camera traps. - Overcast again today.














Comments

Post a Comment

Popular posts from this blog

The Dunnock

-
Image
 When I was a boy my first bird book described "hedge sparrows" but at some time in the last 50 years this name has all but disappeared and these birds are now called dunnocks (as they are not closely related to House and Tree Sparrows) Its easy to miss a dunnock! They are little brown birds and they tend to feed on the ground and keep to the cover of vegetation if they can. The males are territorial and the birds pair up in the spring. The pair are not strictly monogamous and the female will mate with another male if she gets the chance. DNA testing reveals that a brood often has more than one father. The male dunnocks are alert to this possibility and can sometimes be seen pecking at the cloacal opening of the female in an attempt to get her to expel the sperm of the competitor. The sexes look alike and these birds are common and widespread in Britain. The males get involved in feeding young according to their breeding success so it is common to find two males and one femal...
Read more

White Clawed Crayfish

-
Image
 I went for a walk yesterday that took me along the Scandal Beck (a tributary of the River Eden). On the banks of the river was a stone that had obviously been used as a picnic table by an otter and the remains of his meal were strewn about. A recognisable part of the leftovers is shown below. It's clear that this claw comes from a white clawed crayfish. These animals are not common in the UK as they need the water to be rich in calcium. This requirement is fulfilled in the Eden valley by the limestone substrate. I think that the River Eden is as far North as theses animals get. I know that there are crayfish in this part of the system because for a number of years I have volunteered with the Eden Rivers Trust to survey them. It was not uncommon to find a couple of hundred animals in a 300m stretch of river. The following images give an indication of scale. In recent years the population of the native white clawed crayfish has been threatened by the arrival of the invasive signal (...
Read more

Otters

-
 Well another Covid lockdown! As I am confined to the local area I have been having a closer look at the local wildlife. I treated myself to a trail cam and started to see what I could find. After a couple of experimental sessions to get to know the kit I set the camera along a fence line by an old railway track. On the first night I was astonished to get footage of an otter carrying a rabbit! The site is at least 500m from a watercourse which is a drainage ditch that eventually flows into a tiny tributary of the River Eden I hadn't realised that otters eat anything other than fish but apparently they do. I wonder why the otter was carrying the rabbit rather than eating it where it was found. Perhaps it was feeding young? Apparently ottters have young throughout the year. I have only seen an otter near the house once before and that was a late night encounter in the car headlights.
Read more