A defoliating pest of Akashmoni (Acacia auriculiformis A.) seedlings in Bangladesh and its management

Paper Details

Research Paper 01/06/2021
Views (563) Download (27)

A defoliating pest of Akashmoni (Acacia auriculiformis A.) seedlings in Bangladesh and its management

Kazi Ashad-uz-Jaman, Md. Junayed*, Md. Zillur Rahman, Shameema Nasrin
Int. J. Biosci.18( 6), 139-145, June 2021.
Certificate: IJB 2021 [Generate Certificate]


Akashmoni (Acacia auriculiformis A. Cunn. ex Benth) is an economically important forest tree species that is seen everywhere in Bangladesh. There is no available report on Akashmoni defoliator in the country but recently huge damage was caused by an insect [Cryptothelia crameri Westwood (Psychidae: Lepidoptera)] in the Seed Orchard nursery of Bangladesh Forest Research Institute (BFRI), Chattogram was recorded. The larva of the insect starts infestation both in the nursery and young plantations and feeds on young leaves and tender barks. Insect larvae build a special portable bag of leaves and other parts of the plants and live within this bag. The statistical test of Pearson’s correlation between the heights of plants with the percentage of plants attacked for each age group indicated that there is moderate to high positive correlation at 12, 6 and 3 months age-old seedlings. One-year-old seedlings are highly susceptible to infestation (53%) for the pest. The biology, host range, infestation and ecology of the pest have been discussed in this paper. Chemical pesticides Ecomac 1.8 EC (@1ml/L), Acimix 55 EC(@1ml/L), Ripcord 10EC (@2m;/L) and botanical pesticide Neem oil (@5ml/L) were applied to control the pest in the nursery. Among these Acimix 55 EC showed the best performance killed 100% larvae of the insect followed by Ecomac 1.8 EC, Ripcord 10 EC and Neem oil killed 45%, 30% and 5% larvae respectively.


Ahmed M. 1992. Insect fauna of Casuarina equisetifolia. Indian Journal of Forestry 15(2), 142-148.

Baksha MW. 2000. Biology, ecology and management of the bagworm, Cryptothelea Crameri Westwood (Psychidae: Lepidoptera) in Bangladesh. Bangladesh Journal of Forest Science 29(1), 37-40.

Baksha MW. 2008. Insect Pest of Forest of Bangladesh. Bulletin 8. Forest Entomology Series, Bangladesh Forest Reserch Institute, Chittagong, P 131.

Beeson CFC. 1941. The ecology and control of forest insects of India and neighboring countries, Vasant Press, Dehra Dun, p 1007.

Bhasin GD, Roonwal ML. 1954. A list of insect’s pests of forest insect’s o and neighboring countries, Vasant Press. Dehra Dun, P.107.

Browne FG. 1968. Pest and Diseases of Forest Plantation Trees. Clarendon Press, Oxford, p 1330.

Hossain MK. 2015. Silviculture of Plantations trees of Bangladesh. Arannayk Foundation, Dhaka, Bangladesh, p 29.

Joshi CK. 2008. Pests of Acacia Species and Their Management. Forest Entomology Division Tropical Forest Research Institute, Jabalpur-48.

Rahman MA, Baksha MW, Ahmed FU. 1997. Diseases and Pests of the Tree Species in Forest Nurseries and Plantations in Bangladesh. Bangladesh Agricultura Research Council, Dhaka, p 39.

Singh P, Bhandari RS. 1986. Insect pests of forest seeds and their control. Proceedings of the National seminar on forest Tree seeds, Indo-Danish Project on seed procurement and tree improvement and Andhra Pradesh Forest Department, Hyderabad.