This is the first progress report for the research component of the project “Jatropha oil for local development in Mozambique”.
A broad team of researchers from the national agricultural research system (IIAM) and Eduardo Mondlane universitetet (UEM) has been assembled. The team met at a workshop in July in Chimoio to elaborate proposals for the different components.
For the on-station variety trials two hectares of land was prepared in Mandonge research forest outside Sussundenga. Jatropha seeds were obtained from Guatemala, Tanzania and two collections in Mozambique, namely Bilibize and Gorongosa. The seeds were planted at the research nursery outside Sussundenga. However, at the time seedlings were ready it was too far into the dry season to warrant transplanting the seedlings. In the nursery a scientific experiment was undertaken with various seed treatments to increase germination and growth rate. The result was that un-treated seeds performed best which is welcome news since it makes it easier for farmers to manage.
The on-farm research was hampered by the onset of the dry season. However, research protocols have been prepared for the coming season.
A reference list with more than 400 entries was prepared in bibtex format and shared among the researchers. Electronic and photocopies of important articles has been obtained.
A number of activities were undertaken to communicate present knowledge:
Field observations were done on pests and diseases in nurseries and farmers' fields. A number of pests were identified but the most severe, a flea beetle could not be identified with certainty. Samples were consequently sent to Wageningen University for identification. Results have not bee received yet.
It was organised that a student from UEM will do her thesis work on pests in Jatropha. Collection of field data has started.
The overall objective the project is:
“To build an infrastructure and capacity to enable the autonomous upscaling of the activities after termination of the project. The project will initiate the local production of Jatropha seeds and develop a local market of end-users of the oil. The creation of capacity among the local small farmers and technicians is an important component of the project.”
To set up research which lead to the following expected main results: Knowledge acquired of:
I was invited for conference on Jatropha in Holland from 26th to 28th March together with a Jacob Zulu who is active in the development component of this project in Manica Province. Travel and accomondation costs were covered by the Dutch FACT foundation. I stayed two days more to participate in a planning meeting for the Mozambican Jatropha program and to do literature searches. I managed to obtain about 30 central scientific articles that are essential for our research in Mozambique.
In April the first payment of EUR 10,000 was received from FACT Foundation in the Netherlands. We also received a CD with all papers submitted to the FACT Seminar 2007 in Wageningen.
On 14th April a combined inception meeting and monitoring visit took place in Manica. HIVOS is in charge of monitoring our Jatropha research activities. For logistical reasons it has been decided that HIVOS Zimbabwe will be responsible for the regular monitoring. Since this was the first monitoring visit Harrie Oppenoorth from HIVOS- Netherlands participated too. The program included a visit to the Mandonge research site and Sussundenga Research Station. I organised the visit and prepared a presentation of the progress and problems we are facing. The participants were:
On 4th July a workshop was held in Chimoio for the Jatropha research team. It was focused on elaborating research protocols and finalising budgets. The following day the workshop was opened for the public. Representatives from the extension service, private farmers and NGOs participated. Collaboration was agreed in a number of areas including:
A reference list of literature on Jatropha was made in standard Bibtex format using Jabref. It contains more than 400 entries and has been shared among the involved researchers. Electronic and photocopies have been obtained of major documents.
To facilitate internal sharing of documents a protected web-site was created:
http://jatropha.bananahill.netIt is protected because many of the documents are not for public consumption and in a number of cases authors have provided us with copies of published documents that are copyrighted by various publishers.
Together with Jacob Zulu I visited the research & development sites in Cabo Delgado in May. It was the end of the rainy season with occasional showers still occuring.
A workshop was held with representatives of farmers groups that have already planted some Jatropha. Field visits took place South-West of Bilibize and to the West, inside the national reserve.
The many Jatropha curcas plants that have been planted over the last year are growing well but growth is very uneven between and within plots. This is common and probably related to the genetic diversity of the seeds. Growth also appears to be slower than in Manica Province but sampling and measurements will be needed to confirm this.
Seedlings from nurseries as well as direct seeding had been used. Many farmers did not know what planting distance to use so it varied significantly. Row inter-cropping with sesame (Sesamum indicum) was common as was boundary planting. At several locations water logging had resulted in die back. The ground water was at many place within a meter of the soil surface and waterlogging is common during the rainy season. Jatropha is know to be highly sensitive to water loggingso it is important that farmers are made aware of this fact when choosing planting sites. This issue was emphasised during the workshop.
At the workshop harvest time was discussed with farmers. They told that they currently harvest Jatropha throughout the year and that this regime suits them better than a short intensive harvestseason.
Farmers were encouraged to intercrop with nitrogen fixing crops (legumes) because Jatropha is known to respond well to extra nitrogen (and phosphorous).
Due to the big genetic variation in Jatropha farmers were encouraged to be careful in their selectionof seeds for propagation by only using seeds from the best performing plants. Bulk harvesting of Jatropha plots should therefore be avoided if the seeds are to be used for propagation. Pest damage was common but not severe. The main pest appears to be the Golden Flea beetle (Aphthona spp.) that has also been reported as a pest on Jatropha in Zimbabwe and Kenya. The Jatropha plants we observed were either less than two years old or more than fifteen years old. Only in the younger plants did we see Flea beetle damage. I got the impression that Flea beetle damage was more severe in areas where the vegetation suggested low soil fertility. More investigation is required to test this hypothesis but if true we mayhave to focus on soil fertility instead of organic pesticides etc.
The total destruction of Jatropha plots that yellow coloured Flea Beetles have caused in Manica Province has not been observed in Cabo Delgado.
A green larvae was also observed a few times on damaged leafs of young plants together with spots of white spin. It appears to do less damage than the Flea Beetles.
On the old Jatropha plants (15+ years) large numbers of Rainbow Shield Bug (Calidea dregii) was observed. They are known as a pest of cotton but also breeds on sunflower, sorghum, tobacco, castor oil and other crops. They feed by piercing young seeds, causing seed shedding. We observed them sitting on green and yellow seeds of Jatropha curcas as well as inside dried seed pods. Further studies will be required to establish what damage they cause in Jatropha. In cotton the pesticide Permethrin is used to kill Green Shield Bug.
A full trip report with photos of pests was produced.
On 20th June I visited Markus Speiser who is establishing a Jatropha farm in Sofala Province. Elaion Africa has obtained a lease for 1000 ha and is currently setting up a 200 ha trial plantation. At the time of the visit 20 ha had been established from seeds obtained in Zimbabwe. Attack by the Golden Flea beetle ( Aphthona spp.) were observed to have stunted some plants. The nursery was unusual in that it had no shade. Markus Speiser explained that trials had convinced him that shade is not needed for Jatropha seedlings. This is an interesting observation because it will make nursery establishiment easier and cheaper.
We exchanged seeds. We will include the seeds from Zimbabwe in our variety trial at Mandonge and Markus Speiser will test our seeds from Guatemala.
Elaion has calculated a production price of 500 EUR/t of dry seeds. They expect break-even after four years.
Procurement of seeds turned out to be more difficult than anticipated. More than 30 potential suppliers were identified but only the following seeds were available during the period covered in this report:
A student from UEM, Sra Pommes Gagnaux has started collecting field data on pests in Jatropha. Her study will provide information about what pests are affecting Jatropha and to what extend. It will also be documented if any of these pests affect other crops.
During field visits a number of pests have been identified and some of them are known to be pests in other crops, e.g. the Rainbow shield bug (Calidea dregii). However, more studies are needed to assess if Jatropha poses a risk for other crops.
Dra. Luisa Santos from UEM is looking into the possibility of getting a UEM researcher specialised in plant viruses involved in the Jatropha research.
Experience from the research nursery and field observations showed that in Manica Province the most severe pest is a yellow flea beatle. Its appearance is similar to that of the Golden flea beetle (Aphthona spp.) but the damage it causes is much more severe. In many cases in 2006 a mortality rate of 95-100% was experienced in nurseries and in fields with Jatropha plants up to three years old.
A poster with photos of the yellow flea beetle was presented at the FACT Seminar: "Jatropha curcas, Agronomy and Genetics" in Wageningen on March 26-28 in the hope that participants would be able to identify it. However, nobody appears to have observed it before.
In Mozambique we were not able to get a certain idenfication and therefore samples of the Flea Beetle samples were sent to Wageningen University and Research Centre (WUR) in April:Plantenziektenkundige Dienst - Diagnostiek
We have still not received an answer but had confirmed that they are working on it.
The pest pressure appears to be highest during the rainy season and experiments with natural pesticides will therefore be undertaken when the rain starts.
The website will be expanded in two areas:
Despite having contacted a large number of potential seed suppliers few varieties were obtained and included in the trials. It is expected that more suppliers will come forward before the beginning of the next rainly season.
A farmer claims that unshaded nurseries are as good as shaded ones. This will be tested in a scientific trial. Getting rid of the shading is attrative for farmers because it reduces the work involved in nursery establishment and maintenance.
The 2 ha that were prepared for Jatropha variety trials will be planted with a number of Jatropha varieties.
Farmers will implemented according to the protocols developed during the reported period.
Preliminary findings from the recently started survey of pests in Jatropha are expected to be available. This will include an assessment of the danger that Jatrophaacts as an alternate host for important crop pests.
Protocols prepared by entomologist Louisa Santos from UEM will be used for both on-station and on-farm trials with natural pesticides.
It was agreed during a visit to Cabo Delgado that a competition will be made for farmers that want to develop natural pesticides to combat peses in Jatropha. This is a farmer-led approach supplementing the researcher-led approach used with the researcher designed protocols. When the rainy season start farmer groups participating in the project are expected to undertake their own experiments with natural pesticides. Prices offered may include radios or bicycles.