Pulvinaria innumerabilis

Pulvinaria innumerabilis
P. innumerabilis waxy egg sacs
Damage to maple
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hemiptera
Family:	Coccidae
Genus:	Pulvinaria
Species:	P. innumerabilis
Binomial name
Pulvinaria innumerabilis (Rathvon, 1854)

Pulvinaria innumerabilis (cottony maple scale) is a small, flattened, brown scale insect about 1/8" long. In early summer mature females begin to secrete white, waxy, cottony-appearing egg sacs in which they lay as many as 1,500 eggs. Severely infested trees look like they are covered with strings of popcorn.

P. innumerabilis can be found on all species of maples (Acer spp.) but have a strong preference for Silver Maple. It is also known to be able to survive on honey and black locust, white ash, Euonymus, oak, boxelder, dogwood, hackberry, sycamore, beech, elm, willow, basswood, and poplar.

Damage symptoms

While conspicuous, P. innumerabilis infestions usually have little impact on established trees. However, in large numbers they can cause premature leaf drop and twig dieback. Heavy infestations can cause leaves to turn yellow to light green and may cause stunted leaf growth.

References

• Mahr, Susan. "Cottony Maple Scale". University of Wisconsin. Archived from the original on August 25, 2007. http://web.archive.org/web/20070825175910/http://www.hort.wisc.edu/mastergardener/Features/insects/cms/cottony%20maple%20scale.htm. Retrieved July 14, 2008. 
• Shetlar, David J.. "Cottony Maple Scale and Its Management". Ohio State University Extension. http://ohioline.osu.edu/hyg-fact/2000/2019.html. Retrieved July 14, 2008. 

This article related to members of the insect order Hemiptera is a stub. You can help Wikipedia by expanding it.v · Categories: Scale insects Animals described in 1854 Hemiptera stubs Wikimedia Foundation. 2010. Игры ⚽ Нужна курсовая? First Universalist Church (Somerville, Massachusetts) First Unitarian Church (Somerville, Massachusetts) Look at other dictionaries: Pulvinaria innumerabilis — Cotton Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the …   The Collaborative International Dictionary of English Pulvinaria innumerabilis — Bark louse Bark louse (Zo[ o]l.) An insect of the family {Coccid[ae]}, which infests the bark of trees and vines. [1913 Webster] Note: The wingless females assume the shape of scales. The bark louse of the vine is {Pulvinaria innumerabilis}; that …   The Collaborative International Dictionary of English Pulvinaria — Pulvinaria …   Wikipédia en Français Coccidae — Green scale, Coccus viridis. Scientific classification Kingdom: Animalia …   Wikipedia Aletia argillacea — Cotton Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the …   The Collaborative International Dictionary of English Bark louse — (Zo[ o]l.) An insect of the family {Coccid[ae]}, which infests the bark of trees and vines. [1913 Webster] Note: The wingless females assume the shape of scales. The bark louse of the vine is {Pulvinaria innumerabilis}; that of the pear is… …   The Collaborative International Dictionary of English Canton flannel — Cotton Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the …   The Collaborative International Dictionary of English corn worm — Cotton Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the …   The Collaborative International Dictionary of English Cotton — Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the… …   The Collaborative International Dictionary of English Cotton cambric — Cotton Cot ton (k[o^]t t n), n. [F. coton, Sp. algodon the cotton plant and its wool, coton printed cotton, cloth, fr. Ar. qutun, alqutun, cotton wool. Cf. {Acton}, {Hacqueton}.] 1. A soft, downy substance, resembling fine wool, consisting of the …   The Collaborative International Dictionary of English 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”