Introducing APHLIS: The African Postharvet Losses Information System


Plantwise have recently been investigating APHLIS data, a great source of information on postharvest losses in Sub-Saharan Africa.  The system is run by a network of local experts who collect and supply data.  Using a shared database and a Losses Calculator APHLIS provide estimates of weight losses for cereal grains at a national and provincial level.  Read more of this post

Infographic: Plantwise progress in Malawi


Plantwise initiative helping improve food security in Zambia

Zambia cassava-high-yeild-farmer

Ever since Lackson Njovu, a farmer in Rufunsa district, learnt how to deal with plant diseases and pests using the natural way, his harvest has improved.
Mr Njovu now registers less losses and feeds more by identifying, preventing and curing plant health problems.
On his five hectares farm east of the capital, Lusaka, where he grows maize, cassava, groundnuts, pigeon peas and cow peas, Mr Njovu places chemical solutions as the last resort to safeguard human life and the environment.

Click here to read the full story

Plant clinics help improve yields in Machakos, Kenya

Plant doctor John Mutisya examining a potato sample at the Katoloni plant clinic Credit: David Onyango © CABI

John Mutisya, a plant doctor at the Katoloni plant clinic examines a potato sample
Credit: David Onyango © CABI

“Approximately 300 farmer-self help groups from Machakos County and its environs under the Katoloni community-based organization have registered improved crop yields in the last one year due to high levels of sensitization on crop pest and diseases at plant clinics in the region,” writes Maugo Owiti of

In the article, Pius Ndaka, a farmer from Iluvya village shares the benefits he has experienced from the Katoloni plant clinic.

Click here to read the full story

Infographic: Plantwise progress in Kenya so far

PW Kenya Infographic

Plant clinics helped improve my yield

Rose Wanjiru displaying healthy mango fruits in her farm  Credit: David Onyango © CABI

Rose Wanjiru displaying healthy mango fruits in her farm
Credit: David Onyango © CABI

I meet Rose Wanjiru Ireri in her 2.5 acre farm in Mbeere inspecting her crops. From the smile on her face, it is apparent that her plants are healthy.

“I grow oranges, mangoes, cassava and vegetables on my farm. I also produce a lot of bananas for sale.” She currently has over 100 banana plants in her farm. Times are better now, but it has not always been smooth sailing for her. Crop pests and diseases were a major cause of crop losses in her farm until she sought help from her local plant clinic at Kathiga Gaceru irrigation scheme.

“When the leaves of the orange plants became black in colour, I went to the plant clinic with a specimen of the sick leaves. The plant doctors recommended an insecticide to control aphids. I sprayed it on my oranges and now my harvest has greatly improved.”

Rose is one of the many farmers benefiting from the advice provided for free at plant clinics since 2012. “I have been attending the plant clinic at Kathiga Gaceru irrigation scheme for the last one year and I clearly see the benefits. My banana harvest has increased significantly. I have managed to buy more land and construct a poultry house. The best part of this is that the plant clinics offer the services free of charge. ” She sells each bunch of banana at a farm gate price of Kshs 800 each.

CABI is working with The Ministry of Agriculture, Livestock and Fisheries (MoALF), Kenya Agricultural Livestock and Research Organisation (KALRO), University of Nairobi (UoN), Kenya Plant Health Inspectorate Service (KEPHIS), Pest Control Products Board (PCPB), Agrochemical Association of Kenya (AAK) and Small Scale Horticultural Development Project (SHDP) to set up and run the plant clinics. A total of 89 plant clinics are currently running across 13 counties in Kenya.

Combatting the “black spot” on citrus production in Ghana

Contributed by Melanie Bateman, Integrated Crop Management Adviser, CABI in Switzerland

Citrus fruits with angular leaf spot (M. Bateman)

Citrus fruits with angular leaf spot (M. Bateman)

Not long ago, farmers in the Ashanti region of Ghana had seen citrus as a potential money-maker but now many are now giving up in despair as pathogens such as citrus angular leaf spot (Pseudocercospora angolensis) and citrus black spot (Guignarida citricarpa) diminish yields and make the fruits unmarketable. Many farmers have even gone as far as cutting down their orange trees and replacing them with cocoa.

Recently, a team of plant doctors, Ministry of Agriculture extension staff, researchers and other experts led a series of plant health rallies to help equip farmers with information on how to manage citrus angular leaf spot and other plant health problems constraining citrus production. The rallies were presented to unsuspecting members of the public – ‘spontaneous’ rather than regimented extension. The plant health rally approach enabled the team to reach many farmers in the affected area in a short period of time. It also served as a means for the team of experts to gather information from farmers’ on their problems and experiences.

During a plant health rally, an expert gives citrus growers some advice on how to manage some key plant health problems (M Bateman)

During a plant health rally, an expert gives citrus growers some advice on how to manage some key plant health problems (M Bateman)

For example, the discussions with the farmers uncovered another major challenge for the citrus producers: because of a lack of a market, farmers are unable to sell the oranges that they do produce. This is another factor contributing to the decision taken by some to replace citrus with cocoa. This feedback loop will help to strengthen the support provided to farmers. Ultimately, it is hoped that the support provided through plant health rallies, plant clinics and other extension activities will help farmers to respond to and begin to remove the “black spot” on Ghana’s citrus.


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