Photo 1. Colonies of the scale, Aspidiella hartii, increase on stored yams turning them whitish-grey.
Yam scale, turmeric root scale
AUTHORS Helen Tsatsia & Grahame Jackson
Photos 2&3 Georg Goergen, International Institute of Tropical Agriculture, Cotonou, Benin. Diagram Gillian Watson, California Department of Food and Agriculture, Sacramento.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
This mini fact sheet is a part of the app Pacific Pests and Pathogens
The mobile application is available from the Google Play Store and Apple iTunes.