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#3978

Dose range of trichoderma pellets on suppressing Synchytrium

pogostemonis caused budok disease in patchouli plants

1,3
1
2
2
4
R Sriwati , T Chamzurni , E Kusumawati , T K Pertiwi , L Angraeni
1 Plant Protection Department, Faculty of Agriculture, Universitas Syiah Kuala,
Banda Aceh, Indonesia 23111
2 Agrotechnologi Department, Faculty of Agriculture, Universitas Syiah Kuala
Banda Aceh 23111, Indonesia
3 ARC PUI-PT Nilam Universitas Syiah Kuala, Banda Aceh, Indonesia 23111
4 Department of Agricultural Products Technology, Faculty of Agriculture,
Teuku Umar University

E-mai: rinasriwati@unsyiah.ac.id

Abstract. Budok disease, which is the term in Aceh for Synchytrium pogostemonis disease
infection, a disease that often attacks patchouli plants. Warts on leaves, swollen and thickened
stems; reddish-purple, the leaves look wrinkled and thick with a purplish red color. Pesticides
always the best solutions for disease control. Another alternative could be used are biological
control agent such as Trichoderma fungi. This fungus has been produced as a pellet formulation
and has been evaluated their potential to control several importance pant diseases. Tree week
ages of Patchouli seedling were growth on polibag (5kg). Application of pellet was carried out
by immersing it into the planting medium according to the dosage range tested. The doses tested
were 0 g, 2.5 g, 5 g, 7.5 g and 10 g per polybag. The transmission of S. pogostemoni ssap uses
a mechanical method. The measurement of incubation period, leaf area and disease intensity
was done at 120 days after planting. The intensity of disease attacks can be calculated. The result
shown that pellet Trichoderma can suppressing the development of S. Pogostemon in patchouli
plants, when the dose was raised to 10 g showing different effect on growth symptoms, Swollen
and thickened stems, reddish-purple. There were warts on leaves, the leaves look wrinkled and
thick with a purplish red colour, finally could be malformations. Leaf edges normally jagged to
flat round. Leaves were not green as normal leaf colour.

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