Alder sucker

There are several species of sucker

Suckers are growths that appear from the root systems of many trees and shrubs such as lilac, cherries, Robinia. On grafted plants such as roses, suckers can grow from below the graft union, on the rootstock material. Suckers are usually removed by gently pulling off when young. or psyllid that can be encountered by gardeners, they are sap

Sap is a fluid that circulates through a plant's vascular system, in a similar way to blood moving through our veins. Phloem sap carries the sugars produced in the leaves by photosynthesis down to roots and other storage organs, as well as carrying minerals and hormones. Xylem sap is watery and transports nutrients absorbed by the roots upwards to the rest of the plant. Some plants leak sap from wounds or pruning cuts, and this is known as bleeding. sucking true bugs. Alder sucker is only found on alder. The adults are similar in appearance to aphids and up to 5 mm long, green with clear wings. The nymphs are also green with some black markings and flattened in appearance however, they are usually covered in a white waxy secretion. A gallery and more information on psyllids can be found at British Bugs; more information on alder sucker here.

The nymphs of alder sucker

Suckers are growths that appear from the root systems of many trees and shrubs such as lilac, cherries, Robinia. On grafted plants such as roses, suckers can grow from below the graft union, on the rootstock material. Suckers are usually removed by gently pulling off when young. are covered by a ball of fluffy white waxy threads which can make its presence noticeable during the spring. They suck sap

Sap is a fluid that circulates through a plant's vascular system, in a similar way to blood moving through our veins. Phloem sap carries the sugars produced in the leaves by photosynthesis down to roots and other storage organs, as well as carrying minerals and hormones. Xylem sap is watery and transports nutrients absorbed by the roots upwards to the rest of the plant. Some plants leak sap from wounds or pruning cuts, and this is known as bleeding. from the foliage during April-early June.

The adults, which lack the waxy secretions, are present from June-October. Overwintering eggs are laid on the shoots of alders (Alnus species) in the autumn.

Alder sucker does not usually affect the health of its host and is part of the biodiversity

The variety of living organisms (plants, animals, fungi and microorganisms) in a particular environment. Boosting the biodiversity of your garden has many benefits, including supporting wildlife, improving soil health and reducing the likelihood of pest and disease problems. alder trees support.

The presence of white waxy deposits can be noticeable in the spring but this insect rarely has any effect on the health of alders. It is part of garden biodiversity

The variety of living organisms (plants, animals, fungi and microorganisms) in a particular environment. Boosting the biodiversity of your garden has many benefits, including supporting wildlife, improving soil health and reducing the likelihood of pest and disease problems. and control is undesirable.