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3. The “Camote Kulot” Disease identified through serological test as a disease complex involving seven virus
biggest biotic constraint in sweetpotato production in Central Luzon.
caused yield losses of more than 50% due to the use of infected planting materials
caused the loss of an important variety with good agronomic characteristics.
all five varieties commonly grown by farmers are susceptible to the disease.
4. Causes
sweetpotato chlorotic stunt virus (SPCSV),
Sweetpotato feathery mottle virus (SPFMV)
sweetpotato latent virus (SPLV),
sweetpotato mild mottle virus (SPMMV),
sweetpotato chlorotic fleck virus (SPCFV),
sweetpotato mild speckling virus (SPMSV)
a partially characterized virus code named C-6.
7. Livelihood Systems Analysis
12. Methods and Tools
25. Enterprise Development New source of livelihood
Use of underutilized rainfed lands
Non-sweetpotato growing area
CPM producers association
Continuous support from local government
MOA with root producers cooperative
Quality Control
27. Limitations of PR&D Cleaning is not enough!!
CPM is not enough!!
PR&D is not enough!!