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It is also recommended by the MoA in Zambia and ZARI to plant crops spaced out (1m x 1m) to allow airflow. Pruning overgrown cassava plants will also improve aeration and reduce disease development. They also recommend rotating cassava with unrelated crops (e.g. maize) to break the cycle of disease.
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It is one of the worst fungal diseases of cassava. BLS disease appears as small brown spots with dark borders on the upper leaf surface. The brown spots form between leaf veins so their size and shape are limited by the veins. The centre of the brown spots may fall out leaving a hole in the leaf.
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Ministry of Agriculture (MoA) in Zambia and the Zambia Agriculture Research Institute (ZARI) recommend removing dead leaves and diseased leaves on plants and burn them to prevent the spread of fungal spores. They also recommend using clean tools and protective gear to
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Karyeija Robert from MAAIF also recommends early planting allows the crop to grow more vigorously. This will help to reduce the damage that the disease causes to the plant.
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recommend good planting stock and hygiene to reduce BLS. They suggest crop husks infected with BLS should be destroyed to reduce the disease spreading to the next planting.
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The fungus lives in diseased cassava leaves on the plant or those on the ground. It spreads to new leaves and plants by wind or rain splash.
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During a bad attack the infected leaves become yellow and dry, and may die early. The disease can greatly reduce yields.
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Plantwise
Factsheets for Farmers: Brown Leaf Spot (BLS) of Cassava
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381:"Plantwise Knowledge Bank | Cercospora brown leaf spot on cassava"
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plant pathogen that causes Brown leaf spot (BLS) in cassava).Part
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343:"Plantwise Knowledge Bank | Brown Leaf Spot (BLS) of Cassava"
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379:Chipuluka, A.; Mkulama, M.; Salati, R. K. (2018).
197:(Allesch.) R.F. Castañeda & U. Braun, (1989)
298:PMDG: Cercospora brown spot on cassava
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287: This article incorporates text from a
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596:Fungal plant pathogens and diseases
387:. Pest Management Decision Guides.
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291:work. Licensed under CC-BY-SA (
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269:work. Licensed under CC-BY-SA (
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385:Plantwiseplus Knowledge Bank
347:Plantwiseplus Knowledge Bank
293:license statement/permission
279:, Karyeija Robert, CABI.
271:license statement/permission
190:Ghesq. & Henrard, (1924)
183:(Allesch.) Deighton, (1976)
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349:. Factsheets for Farmers.
425:Mycosphaerella henningsii
207:Mycosphaerella henningsii
180:Cercosporidium henningsii
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152:Mycosphaerella henningsii
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43:Scientific classification
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36:Mycosphaerella henningsii
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394:10.1079/pwkb.20177800702
356:10.1079/pwkb.20137804388
248:avoid spreading spores.
187:Mycosphaerella manihotis
18:Mycosphaerella manihotis
601:Fungi described in 1924
173:Cercospora henningsii
194:Passalora henningsii
341:Robert, K. (2016).
295:). Text taken from
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134:M. henningsii
110:Mycosphaerellaceae
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362:2020-06-10
321:References
80:Ascomycota
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128:Species:
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60:Eukaryota
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532:10646063
501:Fungorum
454:60016863
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440:Q6947199
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311:List of
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210:is a
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