Climate change to affect agriculture

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With the Rio +20 conference occurring just last month, the world leaders have been encouraged to take notice of the global poverty and environmental concerns. Climate change was a key issue and with the population set to reach 9 billion by 2050, the impact this will have on food security is of paramount importance, especially…
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Stopping Striga before it’s started

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Striga, or witchweed, is the main weed affecting many cereals including rice, maize, sorghum and millet. One species, Striga hermonthica, is responsible for more crop loss in Africa than any other individual species of weed. Striga is a hemi-parasitic weed; its roots latch onto the roots of its host (e.g. a crop plant such as…
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The seed social network

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A new study by the International Institute of Tropical Agriculture (IITA) looking at cowpea crop diversity following floods and drought in Mozambique has shown that seed sharing networks are a valuable way to maintain, and often improve, crop diversity. Informal sharing and trade of seed within and between local communities in the Limpopo River Valley,…
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Cotton Topping Reduces Pests

Cotton bollworm
Cotton topping has been reported to reduce bollworm infestations without negatively affecting cotton yields. Scientists in Mali looked at three bollworm species, which are responsible for the majority of cotton yield losses in sub-Saharan areas of Africa, where topping is no longer employed. Cotton topping is an agricultural technique in which the shoot tips of…
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