Photo 1. Colony of banana aphids, Pentalonia nigronervosa. Note the dark colour of the adults and the nymphs. The dark veins of the winged adults can just be seen on the insect at the top left corner.
Photo 2. Banana of different ages showing symptoms of Banana bunchy top virus disease. Notice the stunted plants and the yellow leaves, which are pale yellow at the margins.
Photo 3. Banana plant with Banana bunchy top virus. Notice the leaves are upright, stunted and tend to cluster in the "throat" of the plant; leaves like these are said to be "choked" and typical of the disease.
AUTHOR Grahame Jackson
Information from Waterhouse DF, Norris KR (1987) Biological Control Pacific Prospects. Inkata Press. Photo 2 Richard Markham, ACIAR, Canberra.
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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