Cashew is an important cash and nutritious tree crop in the world. Fusarium wilt disease caused by Fusarium oxysporum has deteriorated the production of cashew in Tanzania. Management of fusarium wilt disease has remained a nightmare in the world with a single approach proven inadequate to solve the problem. Therefore, an integrated management approach of using synthetic fungicides, soil amendment and non-host intercrops will possibly solve the problem. Synthetic fungicides will manage the infested cashew tree returning to its normal state, while the application of soil amendment like lime and non-host intercrops will provide a non-conducive environment for growth and reproduction of the fusarium pathogens and environmental conservation respectively. Through the application of these three approaches the management of fusarium wilt disease in cashew will be sustainable and economical viable to stakeholders.
This integrated management approach is total beneficial to cashew stakeholders in Tanzania and worldwide. Example farmers will be able to manage the disease, then increase the production and income. Also the developed approach will be useful to other host plant of Fusarium oxysporum such as Cotton, Guava, Banana and others.
- The approach will be conducted into three different sites.
- Integrated Fusarium wilt Management (IFWM) will be conducted for three consecutive years. The fields will be divided into three blocks, First block subjected to one year application, second block subjected to two years application and third block subjected to three years application.
- In each block, an integrated approach of synthetic fungicides, soil amendment and non-host intercrop will be applied. Lime will be applied on the soil under the cashew canopy with a radius of three meter from the trunk, then followed by the application of systemic fungicides on the same area applied with lime and on the foliar part of the cashew tree. The application of lime and fungicides will be thrice a year. Non-host intercrop will be planted in the interow space between cashew trees once per year during a rain season as rainfed cropping.
- Before the application of Integrated Fusarium wilt management a baseline data will be collected which will be soil physiochemical data and disease severity data. Then after the application of IFWM approach, the soil physiochemical data, disease severity data and plant rejuvenation data will be collected to verify the efficacy of the approaches.
Stakeholders in this project are the local government authorities (LGO’s) and Tanzania Agriculture Research Institute (TARI)-Naliendele.
- Farmers-are primary beneficiaries who will adopt the technology develop, cure and prevent their cashew fields from Fusarium wilt disease and ultimately increase their cashew production and household income.
- Researchers– will increase the knowledge base on the management of fusarium wilt disease in cashew
- Synthetic fungicide and lime manufacturers: these will benefit from supplying their recommended products to farmers.
- Integrated Fusarium Wilt Management (IFWM) approach will control and prevent the fusarium wilt disease on cashew tree.
- Increase easy and fast rejuvenation of cashew tree
- Increase in cashew production and productivity
- Farmers and research will increase the knowledge on the management of the fusarium wilt disease in cashew
- More farmers will have self-employment through cashew farming
- Farmers will increase their production and productivity, hence increase their household income and ultimately reduce and eradicate poverty.
- Synthetic fungicides and lime manufacturers will employ more laborers for the manufacturing of their products.
The desire to help local Tanzanian cashew famers to combat the problem of fusarium wilt disease which reduces their production and productivity is the one motivated me to try to work out in this call.
I will personal increase my knowledge during the implementation of the project idea and also my compatriot local farmers will benefit by managing their cashew tree from fusarium wilt disease and ultimately increase their production and productivity.