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Bananas and Food Security - Bioversity International

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Asie - Pacifique / Asia - Pacific : P. Viswanath et al.<br />

Table 5. Major banana pests, diseases, nematodes <strong>and</strong> their control measures.<br />

Name of disease<br />

Pests<br />

Scientific name Control measures<br />

Aphids Pentalonia nigronervosa Demecron 15 ml/100 l water<br />

Scales<br />

Fungal<br />

Planococcus citri Supracide 40 150 ml/100 l water<br />

Sigatoka Mycosphaerella musicola Bravo 500 3g/l water, Polyram combi<br />

80 WP 3g\lit, Dithane M 45 3g/l water,<br />

Polyrom combi 80 WP 3g/l water<br />

Cigar end rot Verticillium theobromae Trimiltoxy forte 3g/l water<br />

Anthracnose Glomerella cingulata Ditahane M 45 3g/l, Dithane M 45 3g/l<br />

Fruit rot Erwinia, Rhizopus Trimiltox forte 3g/l<br />

Post harvest<br />

fruit rot<br />

Bacterial<br />

Colletotrichum ssp. Thiabendazole 3g/l water<br />

Moko disease<br />

Viral diseases<br />

Pseudomonas solanacearum (1) Use of disinfected tools (2) Proper<br />

cultural practices (3) Use of healthy<br />

suckers<br />

Cucumber (1) Use of resistant varieties<br />

mosaic virus<br />

Aucuba<br />

(2) Healthy suckers<br />

Nematodes Helicotylenchus multicinctus Fenamiphos 10% granules or<br />

Radopholus similis Ethoprophas 10% granules<br />

Meloidogyne incognita<br />

M. javanica<br />

Tylenchorynchus coffeae<br />

@ 12-15 gm/plant or 40-50 gm/stool<br />

Nematodes<br />

Plant parasitic nematodes are of serious concern in banana plantations. The infected<br />

plants produce undersized bunches <strong>and</strong> fingers which may be attributed to impaired<br />

physiology of the infected roots which absorb insufficient water <strong>and</strong> nutrients thereby<br />

reducing the vigour <strong>and</strong> growth of the plants, resulting in poor yield. Das Gupta <strong>and</strong> Gaur<br />

(1986) have made similar observations.<br />

Nematodes on the Batinah coast<br />

Four pathogenic nematodes were reported on banana on the Batinah coast (Waller et al.<br />

1978). Mani et al. (1991) reported that M. incognita <strong>and</strong> M. javanica were the<br />

predominant populations <strong>and</strong> were present at all the centres (Table 6). M. incognita was<br />

the most frequently occurring species <strong>and</strong> was encountered in 60% of the samples<br />

collected from Quriyat, Seeb, Barka, Rustaq, Musanah, Suweiq, Saham, Kaubourah <strong>and</strong><br />

Liwa. The severity was highest at Saham. M. javanica was found in association with<br />

M. incognita in only 35% of the samples <strong>and</strong> was prevalent at the Quriyat, Barka, Rustaq,<br />

Suweiq, Saham, <strong>and</strong> Liwa centres. But its population was at more than ETL only in 5% of<br />

245

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