thecraftykitty's picture

Horse Chestnut Scale Insect (Pulvinaria vitis)

Observed: 26th June 2013 By: thecraftykitty
IMG_7795
Infected plant
Description:
Identifications
Species interactions

No interactions present.

Comments

Amadan's picture

Do you know

What the host plant is, please?

GrizzledBadger's picture

Scale insect

This insect is often to be found on Tilias,Sycamore, & Horse Chestnut & often heavily infesting recently planted "semi-mature" landscaping trees. Causes a large amount of 'Honey-dew' .

In is juvenile stage it can move around to find a suitable spot to feed, the white wool is to protect the eggs, perhaps it also helps it to spread by allowing the eggs to be carried by birds or to be blown in the wind!

As it is an insect not a fungus it does need moving to invertebrates. Thank You:-)

Brock

SteveMcWilliam's picture

Tilia (Limes), Acer (Sycamore

Tilia (Limes), Acer (Sycamore and Maples) and Aesculus (Horse Chesnut) are sued by teh Horse Chesnut Scale Insect (Pulvinaria regalis).

The scale insects in your photogrpah are Cottony Cemellia Scale (Pulvinaria floccifera)./

Steve

Amadan's picture

Scale Insect -

I wondered if it might be that, but they're not something I know much about - hence the enquiry about host plant.
GB had no hesitation - good eye!

GrizzledBadger's picture

They look unsightly on

They look unsightly on recently planted trees, with heavy infestations slowing down tree establishment, very messy with their fluff & honey-dew, but I think some Ladybirds & Lacewings will tackle them when they are small & soft.

Brock

thecraftykitty's picture

Thanks for the info. I have

Thanks for the info. I have included a picture of the plant they are infecting. Right by our front door! I don't know the name of the plant either!

GrizzledBadger's picture

Evergreen Euonymus

Your plant appears to be an evergreen Euonymus probably E. japonicus variety. Similar plants are often used in mixed planters of houseplants/bulbs.

Your plant was originally variegated, but now is almost green because green reverting shoots have never been removed.

Brock

SteveMcWilliam's picture

Horse Chesnut Scale Insect and Woolly Vine Scale Insect

Horse Chestnut Scale Insect would be Pulvinaria regalis.

Pulvinaria vitis is Woolly Vine Scale Insect.

Steve