Some of the teak trees in commercial plantations reported damage on trunks. It looks like a fungal infection; the bark is opening and exposes the trunk. Can anybody support identifying the disease and provide suggestions to control it. I added some pictures here.
Thank you for any support
Arvind Singh Thank you very much for the answer. Could you recommend any publication to find out more details?
Looks like mechanical or animal injury followed by termite infestation
A typical portion of the bark is missing, that why I feel that it would be mechanical damage
May be the damage was at young age
Can you remember when these symptoms started to appear
A study has been undertaken to resolve this problem. Plant samples were collected from the trunk (bark, sapwood and central cylinder) and the roots for fungal microflora analysis through in vitro cultures to identify the causative agent of the decay of healthy trees. Sixteen different fungal genera were selected, including two species responsible for teak disease: Verticillium sp. with 82% and 98% frequencies and Fomes sp. with 79% and 60% frequencies, respectively in the roots and trunks of the diseased teaks. The presence of fungi was recorded as Verticillium sp. in 30% of diseased trees, Fomes sp. in 7.5% and all species combined in 70.5% of the cases. The inoculation of young seedling teaks in semi-controlled environment with isolates of different species of fungi allowed the restoration of the infection over 73.3% of the plants with Verticillium sp. and 16.4% with Fomes sp. The study recorded, for the first time, Verticillium sp. responsible for teak decay in plantation and reforestation (semi deciduous dense forest environment) in Cote d'Ivoire. Very often the causes of teak and forest species decay associated with fungi are attributed by error to Fomes sp., ignoring a formidable decay agent in forestry, the Verticillium sp. The lack of knowledge and information on the real causality of teak decay, associated with fungi, could make fungicidal treatments, for control of wood tree diseases, difficult and unsuccessful.
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