Photo 1. Severe infection of galls caused by the sweetpotato gall mite, Eriophyes gastrotrichus, on stems and petioles of sweetpotato.
Photo 2. Galls caused by the sweetpotato gall mite, Eriophyes gastrotrichus, on petioles of sweetpotato. Some of the galls grow up to 10 mm long and 5 mm wide.
Photo 3. Growers often plant cuttings that have galls on them, not realising that the galls contain mites, which may reduce plant vigour and consequently the yield of the plants.
Sweetpotato gall mite
AUTHOR Grahame Jackson
Information (and Figure) from Amante V, Vasquez EA, O'Sullivan JN, Norton GA (2003). A field guide to the sweetpotato problems in the Philippines. The University of Queensland.
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.
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