HemipteraAdelgidae2 data sources

Pine Woolly Aphid

Pineus pini

This record describes Pineus pini (species). Recorded family: Adelgidae. Recorded order: Hemiptera.

Identification and Appearance

Pine Woolly Aphid - Pineus pini

The apterous female of Pineus pini , known as the 'sistens' is covered in white wax wool. Under the wax the sistens is dark brown to dark red, and almost spherical. The adult Pineus pini aptera has a body length of 1.0 to 1.2 mm. It is associated with Scots Pine where it can cause serious damage. The needles become twisted, forming a loose gall, with the adelgid nymphs living between the needles. Unless identified by a recognised expert, a photo is required and your record should state whether the aphids were recorded on Scots Pine. Colonies can always be found on the smaller stems and shoots of pine throughout the year with three or more generations per year. Infestation of Scots Pine by this species causes premature needle shedding and reduction in the length of infested needles. Pineus pini has an overwintering generation on the twigs, and two or more overlapping generations attacking the current year's shoots. Pineus pini eggs are laid in abundant wax-wool. The second of the summer generations in May-June includes winged forms which disperse to other pine trees. Status in Britain is difficult to determine due to lack of records. https://influentialpoints.com/Gallery/Pineus_pini_Pine_woolly_aphid_Scots_pine_adelgid.htm No additional images available for this species.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Family
Adelgidae
Genus
Pineus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

On Scots Pine.

Seasonal Activity

Colonies can always be found on the smaller stems and shoots of pine throughout the year with three or more generations per year.

Diet and Behavior

Life History

Infestation of Scots Pine by this species causes premature needle shedding and reduction in the length of infested needles. Pineus pini has an overwintering generation on the twigs, and two or more overlapping generations attacking the current year's shoots. Pineus pini eggs are laid in abundant wax-wool. The second of the summer generations in May-June includes winged forms which disperse to other pine trees.

Additional species information

Recorded status

Status in Britain is difficult to determine due to lack of records.

About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group

Order-level background for Hemiptera, the group containing Pineus pini. Species-specific details appear above.

Group overview

Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.

Ecological role of the group

Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.

Economic and practical significance of the group

The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.

Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.

Explore Hemiptera families and species →

Photos of Pine Woolly Aphid (3)

Pine Woolly Aphid - photo 1
Pine Woolly Aphid - photo 2
Pine Woolly Aphid - photo 3

Frequently Asked Questions About Pine Woolly Aphid

What is Pine Woolly Aphid?

Pine Woolly Aphid (Pineus pini) is a species in the family Adelgidae, within the order Hemiptera.

How big is Pine Woolly Aphid?

of 1.0 to 1.2 mm. It is associated with Scots Pine where it can cause serious damage.

Where is Pine Woolly Aphid found?

Habitat: On Scots Pine.

When is Pine Woolly Aphid active?

Pine Woolly Aphid: seasonal activity - Colonies can always be found on the smaller stems and shoots of pine throughout the year with three or more generations per year..

What is the life cycle of a Pine Woolly Aphid?

Infestation of Scots Pine by this species causes premature needle shedding and reduction in the length of infested needles. Pineus pini has an overwintering generation on the twigs, and two or more overlapping generations attacking the current year's shoots. Pineus pini eggs are laid in abundant wax-wool. The second of the summer generations in May-June includes winged forms which disperse to other pine trees.