Farmer: Mr. Priwan
Year of rubber tree: > 20 years old of rubber
Application Process: Apply (Foliar spraying + Soil conditioner) once a week, totally 9 applications
Dilution Ratio of BIOFORTEN: 1:128
To see whether spraying of BIOFORTEN can help the infected trees recover from drying disease (Bark Necrosis).
To establish the appropriate rates, timing and frequencies of BIOFORTEN" applications.
After spraying, the bark is very thick and very soft which signals that more rubber latex is being produced. The new bark colour was very orange showing that the new barks are in good conditions.
Incredibly large numbers of new hair roots am week of application, when the farmer tear off the new hair root the rubber latex flow out. This is because the hair root cells are the place of producing latex then transporting to the stem.
Control: Thin and hard bark. The new bark was not orange in colour.
All the trees recovered from drying disease, Bark Necrosis.
After application 70-80 % of new bark regenerated as compared to control.
The new regenerated bark is healthy, thick and soft. (Accumulating the latex)
Plenty of new hair roots generated after 3 days of application.