Leaf Spot Disease in Cempaka Seedlings Caused by Colletotrichum sp. Fungus

Image: article cover, from Irawan et al. (2015), Jurnal Wasian, licensed CC BY-NC 4.0.

A research team from the Manado Forestry Research Institute has identified the fungus Colletotrichum sp. as the cause of leaf spot disease in cempaka seedlings (Magnolia elegans). Published in the Journal Wasian in 2015, the study emphasises the importance of identifying the cause of the disease so that control techniques are properly targeted.

According to the research, the initial symptoms of the disease appear as lines or spots on the leaf surface with distinct margins. The spots are generally brown and surrounded by a darker edge. Disease control can be achieved by isolating infected seedlings, reducing canopy density, and using appropriate fungicides.

For forest communities and nursery managers, these findings provide a simple reference for preventing the spread of the disease among cempaka seedlings. Cempaka itself is a tree species widely used for its timber, so healthy seedlings are key to successful planting.

Source and how to cite

This story is based on the research article Identification Causes Leaf Spot Disease in Cempaka (Magnolia elegans (Blume.) H.Keng) Seedling and Its Control Techniques by Arif Irawan Irawan, Illa Anggraeni Anggraeni and Margaretta Christita Margaretta, published in Jurnal Wasian Vol. 2 No. 2 (2015). The full article is free to read on the Jurnal Wasian website.

Cite the original article (APA 7):

Irawan, A. I., Anggraeni, I. A., & Margaretta, M. C. (2015). Identification Causes Leaf Spot Disease in Cempaka (Magnolia elegans (Blume.) H.Keng) Seedling and Its Control Techniques. Jurnal Wasian, 2(2), 87–94. https://doi.org/10.62142/mhayeq96

If you use these findings in coursework, a thesis or other writing, cite the original article above, not this news story. The original article is licensed CC BY-NC 4.0.