A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute

ISSN - Print: 1021-3279 | Online: -

An attempt was
different locations of Bangladesh. In this study, comparative season wise survey was conducted during
2010-2015. Disease incidence % of six commercially cultivated medicinal plants viz. Ashwagandha
(Withania somnifera L.) Dunal, Gritakanchon (Aloe indica L.), Kalomegh {Andrographispeniculata Nees),
Tulsi {Qcimwn sanctum L.), Basok (Adhatoda vasica Nees) and Shotomoly {Asparagus racemosus L.) was
recorded. Common diseases on all the six plants were recorded which included root rot and leaf blight in
Ashwagandha, leafspots and collar rot in Gritakanchon, Powdery mildew and root rot in Tulsi, leafblight
and collar rot in Kalomegh, wilting and die-back in Basok, tuber rot and stem rot in Shotomoly. The causal
organisms were identified as Fusarium equiseti (Corda.) Sacc., Alternaria altemata (Fries) Keissler,
Cochliobolus lunatus (Nelson & Hassig), Rhizopus stolonifer (Ehrenberg ex.
Fusarium oxysporiiun (Schlecht), Colletotrichum sp. respectively. The study revealed that most of the
incidences of the diseases were found in monsoon than pre-monsoon comparatively. Moderate to severe
damage by the diseases were observed in all the six medicinal plant highest (91.45%) disease incidence was
recorded in Ashwagandha for root rot disease and lowest (68.05%) disease incidence was recorded in
Shotomoly for the same disease.


A study was carried out on the herpetofauna of the Baraiyadhala National Park in Chittagong,
Bangladesh by direct field observations during August 2012 to July 2013. In total, 38 species of
herpetofauna belonging to 3 orders (Anura, Testudines and Squamata), 16 families and 32 genera were
recorded. Out of the 38 species, 10 (26.32%) were amphibians and 28 (73.68%) reptiles. Among the
reptiles, 2 (7.14%) species were turtles, 12 (42.86%) lizards and 14 (50%) snakes while all but one (Asian
Common Toad, Duttaphrynus melanostictus) amphibians were frogs. Among the amphibians, Cricket
Frog (Fejervarya sp.) constituted the highest density and Bengal Leaping Frog (Hylarana tytleri)
accounted for the lowest. The density of South Asian Giant Gecko (Gekko gecko) was the highest and
Indian Rock Python (Python bivittatus), Gray Cat Snake (Boiga siamensis) and Banded Krait (Bungarus
fasciatus) were the lowest among reptiles. Local status (relative abundance) of herpetofauna were
assessed where 15 (39.47%) species were rare, 11 (28.95%) fairly common, 9 (23.68%) common and 3
(7.9%) were very common. Of the recorded species, 15 (39.47%; 2 amphibians and 13 reptiles) were
threatened including 2 Critically Endangered (CE), 6 Endangered (EN) and 7 Vulnerable (VU).

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