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The relative abundance of the mealybug vectors (Hemiptera: Coccidae and Pseudococcidae) of cocoa swollen shoot disease in Ghana



The relative abundance of the mealybug vectors (Hemiptera: Coccidae and Pseudococcidae) of cocoa swollen shoot disease in Ghana



Bulletin of Entomological Research, 713: 435-448



A census of the mealybug vectors of cocoa swollen shoot disease was made weekly on 238 Amazon cacao trees at Tafo, Ghana, between 1971 and 1976. The 6 species encountered were ranked in descending order of abundance: Planococcoides njalensis (Laing), Planococcus citri (Risso), Phenacoccus hargreavesi (Laing), Ferrisia virgata (Ckll.), Pseudococcus concavocerarii James, P. calceolariae (Mask.).

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Accession: 001016353

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DOI: 10.1017/s0007485300008464


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