Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Datasheet

Aspidiella hartii
(yam scale)

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Datasheet

Aspidiella hartii (yam scale)

Summary

  • Last modified
  • 10 December 2020
  • Datasheet Type(s)
  • Invasive Species
  • Pest
  • Preferred Scientific Name
  • Aspidiella hartii
  • Preferred Common Name
  • yam scale
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Metazoa
  •     Phylum: Arthropoda
  •       Subphylum: Uniramia
  •         Class: Insecta

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Pictures

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PictureTitleCaptionCopyright
Colony of A. hartii on yam tuber.
TitleAdults
CaptionColony of A. hartii on yam tuber.
Copyright©Georg Goergen/IITA Insect Museum, Cotonou, Benin
Colony of A. hartii on yam tuber.
AdultsColony of A. hartii on yam tuber.©Georg Goergen/IITA Insect Museum, Cotonou, Benin

Identity

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Preferred Scientific Name

  • Aspidiella hartii (Cockerell)

Preferred Common Name

  • yam scale

Other Scientific Names

  • Aspidiotus hartii Ckll.
  • Targionia harti

Local Common Names

  • Germany: Schildlaus, Yams-

EPPO code

  • ASPIHA (Aspidiella hartii)

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Metazoa
  •         Phylum: Arthropoda
  •             Subphylum: Uniramia
  •                 Class: Insecta
  •                     Order: Hemiptera
  •                         Suborder: Sternorrhyncha
  •                             Unknown: Coccoidea
  •                                 Family: Diaspididae
  •                                     Genus: Aspidiella
  •                                         Species: Aspidiella hartii

Distribution Table

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The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Last updated: 15 Dec 2020
Continent/Country/Region Distribution Last Reported Origin First Reported Invasive Reference Notes

Africa

BeninPresent
Côte d'IvoirePresent
GhanaPresent
MauritiusPresent
NigeriaPresent
Sierra LeonePresent

Asia

IndiaPresent
-KarnatakaPresent
-KeralaPresent
-MaharashtraPresent
-Tamil NaduPresent
PhilippinesPresent
Sri LankaPresent

North America

Antigua and BarbudaPresent
BarbadosPresent
Cayman IslandsPresent
Dominican RepublicPresent
GrenadaPresent
GuadeloupePresent
HaitiPresent
JamaicaPresent
MartiniquePresent
PanamaPresent
Puerto RicoPresent
Saint Kitts and NevisPresent
Saint Vincent and the GrenadinesPresent
Trinidad and TobagoPresent
U.S. Virgin IslandsPresent

Oceania

Federated States of MicronesiaPresent
FijiPresent
GuamPresent
New CaledoniaPresent
Papua New GuineaPresent
Solomon IslandsPresent
TongaPresent
VanuatuPresent
Wallis and FutunaPresent

South America

Ecuador
-Galapagos IslandsPresent
VenezuelaPresent

List of Symptoms/Signs

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SignLife StagesType
Roots / external feeding

Natural enemies

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Natural enemyTypeLife stagesSpecificityReferencesBiological control inBiological control on
Adelencyrtus moderatus Parasite

References

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Aighewi, B. A., Akoroda, M. O., Asiedu, R., 2002. Seed yam (Dioscorea rotundata Poir) production, storage, and quality in selected yam zones of Nigeria. African Journal of Root and Tuber Crops, 5(1), 20-23.

APPPC, 1987. Insect pests of economic significance affecting major crops of the countries in Asia and the Pacific region. Technical Document No. 135. Bangkok, Thailand: Regional Office for Asia and the Pacific region (RAPA)

Colon-Ferrer, M., Medina-Gaud, S., 1998. Contribution to the systematics of the Diaspidids (Homoptera: Diaspididae) of Puerto Rico. Puerto Rico: University of Puerto Rico, Mayagüez Campus, Agricultural Experiment Station, Dept. of Crop Protection.1-258. https://books.google.com.ph/books/about/Contribution_to_the_systematics_of_the_D.html?id=KvVMAAAAYAAJ&redir_esc=y

García Morales, M., Denno, B. D., Miller, D. R., Miller, G. L., Ben-Dov, Y., Hardy, N. B., 2016. ScaleNet: A literature-based model of scale insect biology and systematics. Database. doi: 10.1093/database/bav118. http://scalenet.info

Goergen, G., Dossou, R., Asiedu, R., Hanna, R., 2012. Scale insects on yams in Benin: diversity, incidence and farmers' knowledge and perceptions. [Proceedings of the 11th triennial Symposium of the ISTRC-AB held at Memling Hotel, Kinshasa, Democratic Republic of Congo from 4 to 8 October 2010], ISTRC-AB - International Society for Tropical Root Crops. 411-413. https://www.rtb.cgiar.org/publications/scale-insects-on-yams-in-benin-diversity-incidence-and-farmers-knowledge-and-perceptions/

Kotikal, Y. K., Kulkarni, K. A., 2000. Incidence of insect pests of turmeric (Curcuma longa L.) in northern Karnataka, India. Journal of Spices and Aromatic Crops, 9(1), 51-54.

Matile-Ferrero, D., Étienne, J., 2006. Scale insects from the French Antilles and some other Caribbean islands [Hemiptera, Coccoidea]. (Cochenilles des antilles françaises et de quelques autres îles des caraïbes [Hemiptera, Coccoidea]). Revue Française d'Entomologie, 28(4), 161-190.

Mille, C., Henderson, R. C., Cazeres, S., Jourdan, H., 2016. Checklist of the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) of New Caledonia. Zoosystema, 38(2), 129-176. doi: 10.5252/z2016n2a1

Panis, A., 2006. A beneficial insect new to Dominican Republic : Adelencyrtus moderatus (Howard) (Hymenoptera : Encyrtidae). Nouvelle Revue d'Entomologie, 23(3), 288. https://eurekamag.com/research/014/837/014837061.php

Ramakrishna Ayyar, T. V. , 1921. Short Notes on New and Known Insects from South India. In: Report of Proceedings. 4th Ent. Meeting, Pusa, February 1921 [Rept. Proc. 4th Ent. Meeting, Pusa, February 1921], Calcutta. 29-40 pp.

Salerno, M., Mazzeo, G., Suma, P., Russo, A., Diana, L., Pellizzari, G., Porcelli, F., 2018. Aspidiella hartii (Cockerell 1895) (Hemiptera: Diaspididae) on yam (Dioscorea spp.) tubers: a new pest regularly entering the European part of the EPPO region. Bulletin OEPP/EPPO Bulletin, 48(2), 287-292. doi: 10.1111/epp.12480

UK, CAB International, 1966. Aspidiella hartii. [Distribution map]. In: Distribution Maps of Plant Pests , (June) Wallingford, UK: CAB International.Map 217.

Velayudhan, K. C., Liji, R. S., 2003. Preliminary screening of indigenous collections of turmeric against shoot borer (Conogethes punctiferalis Guen.) and scale insect (Aspidiella hartii Sign.). Journal of Spices and Aromatic Crops, 12(1), 72-76.

Williams, D. J., Butcher, C. F., 1987. Scale insects (Hemiptera: Coccoidea) of Vanuatu. New Zealand Entomologist, 9, 88-99.

Williams, D. J., Watson, G. W., 1988. The scale insects of the tropical South Pacific Region. Part 1. The armoured scales (Diaspididae), Wallingford, UK: CAB International.290pp.

Distribution References

Aighewi B A, Akoroda M O, Asiedu R, 2002. Seed yam (Dioscorea rotundata Poir) production, storage, and quality in selected yam zones of Nigeria. African Journal of Root and Tuber Crops. 5 (1), 20-23.

Akinlosotu T A, Kogbe J O S, 1988. Studies on the incidence of yam scale, Aspidiella hartii on Dioscorea spp. and its chemical control. Journal of Root Crops. 14 (2), 21-23.

APPPC, 1987. Insect pests of economic significance affecting major crops of the countries in Asia and the Pacific region. Technical Document No. 135., Bangkok, Thailand: Regional Office for Asia and the Pacific region (RAPA).

Brown S W, Bennett F D, 1957. On sex determination in the Diaspine scale Pseudaulacaspis pentagona (Targ.) (Coccoidea). Genetics. 42 (4), 510-523. https://europepmc.org/article/med/17247712

Colon-Ferrer M, Medina-Gaud S, 1998. Contribution to the systematics of the Diaspidids (Homoptera: Diaspididae) of Puerto Rico., Puerto Rico: University of Puerto Rico, Mayagüez Campus, Agricultural Experiment Station, Dept. of Crop Protection. 1-258. https://books.google.com.ph/books/about/Contribution_to_the_systematics_of_the_D.html?id=KvVMAAAAYAAJ&redir_esc=y

D'AscoLi A, 1971. The armored scale insects of Venezuela (Hompptera: Coccoidea: Diaspididae) a taxonomic survey including keys to the species and listing food-plants. 2773.

García Morales M, Denno B D, Miller D R, Miller G L, Ben-Dov Y, Hardy N B, 2016. ScaleNet: A literature-based model of scale insect biology and systematics. In: ScaleNet: A literature-based model of scale insect biology and systematics. http://scalenet.info/

Goergen G, Dossou R, Asiedu R, Hanna R, 2012. Scale insects on yams in Benin: diversity, incidence and farmers' knowledge and perceptions. [Proceedings of the 11th triennial Symposium of the ISTRC-AB held at Memling Hotel, Kinshasa, Democratic Republic of Congo from 4 to 8 October 2010], ISTRC-AB - International Society for Tropical Root Crops. 411-413. https://www.rtb.cgiar.org/publications/scale-insects-on-yams-in-benin-diversity-incidence-and-farmers-knowledge-and-perceptions/

Kotikal Y K, Kulkarni K A, 2000. Incidence of insect pests of turmeric (Curcuma longa L.) in northern Karnataka, India. Journal of Spices and Aromatic Crops. 9 (1), 51-54.

Matile-Ferrero D, Étienne J, 2006. Scale insects from the French Antilles and some other Caribbean islands [Hemiptera, Coccoidea]. (Cochenilles des antilles françaises et de quelques autres îles des caraïbes [Hemiptera, Coccoidea].). Revue Française d'Entomologie. 28 (4), 161-190.

Mille C, Henderson R C, Cazeres S, Jourdan H, 2016. Checklist of the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) of New Caledonia. Zoosystema. 38 (2), 129-176. DOI:10.5252/z2016n2a1

Panis A, 2006. A beneficial insect new to Dominican Republic : Adelencyrtus moderatus (Howard) (Hymenoptera : Encyrtidae). Nouvelle Revue d'Entomologie. 23 (3), 288. https://eurekamag.com/research/014/837/014837061.php

Ramakrishna Ayyar T V, 1921. Short Notes on New and Known Insects from South India. In: Report of Proceedings. 4th Ent. Meeting, Pusa, February 1921 [Rept. Proc. 4th Ent. Meeting, Pusa, February 1921.], Calcutta. 29-40 pp.

Sika N A, Yao N A, Foua-Bi K, 2005. Parasitic impact of Hymenoptera: Adelencyrtus femoralis Compere and Annecke (Hymenoptera, Encyrtidae) against the brown yam cochineal: Aspidiella hartii Cocerell (Homoptera, Diaspididea). (Action parasitaire de l\'Hyménoptère : Adelencyrtus femoralis compere et annecke (Hymenoptera, Encyrtidae) contre la cochenille brune de l\'igname : Aspidiella hartii cockerell (Homoptera, Diaspididae)). Agronomie Africaine. 17 (2), 153-162. DOI:10.4314 / aga.v17i2.1666

UK, CAB International, 1966. Aspidiella hartii. [Distribution map]. In: Distribution Maps of Plant Pests, Wallingford, UK: CAB International. Map 217. DOI:10.1079/DMPP20056600217

Velayudhan K C, Liji R S, 2003. Preliminary screening of indigenous collections of turmeric against shoot borer (Conogethes punctiferalis Guen.) and scale insect (Aspidiella hartii Sign.). Journal of Spices and Aromatic Crops. 12 (1), 72-76.

Williams D J, Butcher C F, 1987. Scale insects (Hemiptera: Coccoidea) of Vanuatu. New Zealand Entomologist. 88-99.

Williams D J, Watson G W, 1988. The scale insects of the tropical South Pacific Region. Part 1. The armoured scales (Diaspididae). Wallingford, UK: CAB International. 290pp.

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