Warts on cucurbits.
Biotic causes (variety, viruses, insects) and abiotic causes (oedema).
AUTHOR Grahame Jackson
Information (and Photo 3) from Lindsey du Toit Photo gallery of vegetable problems - Cucurbits. Pacific Northwest Vegetable Extension Group, Washington State University. (http://mtvernon.wsu.edu/path_team/squash.htm); and information (and Photo 4) from Gerald Holmes. What are these bumps on my vegetables? Michigan State University Extension. (http://msue.anr.msu.edu/news/what_are_these_bumps_on_my_vegetables). Photos 1&2 Eric Boa, UK. Photo 5 Diseases of vegetable crops in Australia (2010). Editors, Denis Persley, Tony Cooke, Susan House. CSIRO Publishing.
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.