International Journal of Forestry, Ecology & Environment
Volume 04 - Issue 01 | Year of Publication: 2021
Article Type: Research Article | No. 16, 2021 | Country: Bangladesh | pp. 141-152 | Open Access
Title: Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya forest range of Sakhipur upazila under Tangail forest division, Bangladesh
Authors: Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A.
DOI: https://doi.org/10.18801/ijfee.040121.16
Title: Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya forest range of Sakhipur upazila under Tangail forest division, Bangladesh
Authors: Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A.
DOI: https://doi.org/10.18801/ijfee.040121.16
Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya forest range of Sakhipur upazila under Tangail forest division, Bangladesh
Abstract
This study was undertaken to know the species diversity of the monoculture plantations of exotic species Acacia auriculiformis and Eucalyptus camadulensis compared to indigenous species Shorea robusta and Mangifera indica. There are 12 sample plots (size 36x36 m) were selected from the study area following the purposive random sampling. A total of 720 quadrats (12 plots x 10 quadrats x 6 seasons) were placed in the sample plots to collect the undergrowth vegetation data over two years of 2010-11 following summer, monsoon and winter season. The average value of Shannon-Wiener diversity index was 2.65±0.16 and 3.28±0.13 that of Simpson’s diversity index was 0.87±0.02 and 0.93±0.01 and that of Margalef’s diversity index was 7.34±0.77 and 10.43±0.52 collectively in all exotic and indigenous plots, respectively. This scenario depicts that the extent of species diversity was higher in indigenous tree species plots than in exotic tree plots and the flora of the study area was highly diversified. The Shorea plots were richer in species diversity out of the four species categories of sampling plots. The index values of three diversity indices were significantly different for the exotic and indigenous tree plots, excluding Eucalyptus and Mangifera species plots, which mean the undergrowth species diversity of Eucalyptus and Mangifera species plots, were not significantly different. Adequate awareness building programs need to conduct among the local community and Bangladesh Forest Department to understand environmental degradation, the importance of conservation management of indigenous ‘Sal’ forest and significance of plant diversity in the village forest for future generations.
Key Words: Shannon-Wiener diversity index, Phytodiversity, Monoculture, Exotic, Indigenous and Undergrowth
Abstract
This study was undertaken to know the species diversity of the monoculture plantations of exotic species Acacia auriculiformis and Eucalyptus camadulensis compared to indigenous species Shorea robusta and Mangifera indica. There are 12 sample plots (size 36x36 m) were selected from the study area following the purposive random sampling. A total of 720 quadrats (12 plots x 10 quadrats x 6 seasons) were placed in the sample plots to collect the undergrowth vegetation data over two years of 2010-11 following summer, monsoon and winter season. The average value of Shannon-Wiener diversity index was 2.65±0.16 and 3.28±0.13 that of Simpson’s diversity index was 0.87±0.02 and 0.93±0.01 and that of Margalef’s diversity index was 7.34±0.77 and 10.43±0.52 collectively in all exotic and indigenous plots, respectively. This scenario depicts that the extent of species diversity was higher in indigenous tree species plots than in exotic tree plots and the flora of the study area was highly diversified. The Shorea plots were richer in species diversity out of the four species categories of sampling plots. The index values of three diversity indices were significantly different for the exotic and indigenous tree plots, excluding Eucalyptus and Mangifera species plots, which mean the undergrowth species diversity of Eucalyptus and Mangifera species plots, were not significantly different. Adequate awareness building programs need to conduct among the local community and Bangladesh Forest Department to understand environmental degradation, the importance of conservation management of indigenous ‘Sal’ forest and significance of plant diversity in the village forest for future generations.
Key Words: Shannon-Wiener diversity index, Phytodiversity, Monoculture, Exotic, Indigenous and Undergrowth
HOW TO CITE THIS ARTICLE?
MLA
Rahman, M. M. et al. “Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 141-152.
APA
Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A. (2021). Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), 140-152.
Chicago
Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A. “Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 141-152.
Harvard
Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A. 2021. Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), pp. 141-152.
Vancouver
Rahman, MM, Khan, SA, Hossain, GM and Rahim, MA. Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh. International Journal of Forestry, Ecology and Environment, 2021 May 04(01): 141-152.
MLA
Rahman, M. M. et al. “Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 141-152.
APA
Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A. (2021). Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), 140-152.
Chicago
Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A. “Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 141-152.
Harvard
Rahman, M. M., Khan, S. A., Hossain, G. M. and Rahim, M. A. 2021. Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), pp. 141-152.
Vancouver
Rahman, MM, Khan, SA, Hossain, GM and Rahim, MA. Undergrowth phytodiversity index in exotic and indigenous tree plots in Hoteya Forest Range of Sakhipur Upazila under Tangail Forest Division, Bangladesh. International Journal of Forestry, Ecology and Environment, 2021 May 04(01): 141-152.
Article Type: Research Article | No. 17, 2021 | Country: Bangladesh | pp. 153-162 | Open Access
Title: Influence of humanitarian assistances on ecosystem services in Bangladesh coast
Authors: Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S
DOI: https://doi.org/10.18801/ijfee.040121.17
Title: Influence of humanitarian assistances on ecosystem services in Bangladesh coast
Authors: Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S
DOI: https://doi.org/10.18801/ijfee.040121.17
Influence of humanitarian assistances on ecosystem services in Bangladesh coast
Abstract
The coastal ecosystem of Bangladesh is diverse and the life and livelihood of the people are largely dependent on ecosystem services (ES). The frequent natural disasters negatively influence coastal ecosystem services and consequently interrupt human life and resources. Government and non-government organizations provide humanitarian assistance to the local community to recover damages induced by disasters in coastal areas. In this research, we used participatory workshops (n=4) and face-to-face questionnaire surveys (n=131) to study the influence of humanitarian assistance on ecosystem services on the Bangladesh coast. Our study revealed prominent ecosystem services in the study area; those were provisioning services: crops, livestock, capture fisheries, freshwater; regulating services: erosion regulation, climate regulation, natural hazard regulation; cultural services: recreation and tourism, boating to the Meghna coast, migratory birds watching. The livelihood of people was heavily impacted by the disasters; however, training support guided them to manage their income by selling their commercially produced animals (e.g., cattle, goats and poultry) before disaster seasons. Humanitarian assistance for supplementary nutrient supply, sanitation and drinking water facilities influenced the unwanted extraction of natural resources from the fragile ecosystems after the disaster. Our study suggested that future research should focus on the influence of one-to-one humanitarian assistance, to what extent ES improvement through this assistance is achievable for natural disaster protection on the Bangladesh coast.
Key Words: Humanitarian assistance, Ecosystem Services, Natural Disasters and Coastal Bangladesh
Abstract
The coastal ecosystem of Bangladesh is diverse and the life and livelihood of the people are largely dependent on ecosystem services (ES). The frequent natural disasters negatively influence coastal ecosystem services and consequently interrupt human life and resources. Government and non-government organizations provide humanitarian assistance to the local community to recover damages induced by disasters in coastal areas. In this research, we used participatory workshops (n=4) and face-to-face questionnaire surveys (n=131) to study the influence of humanitarian assistance on ecosystem services on the Bangladesh coast. Our study revealed prominent ecosystem services in the study area; those were provisioning services: crops, livestock, capture fisheries, freshwater; regulating services: erosion regulation, climate regulation, natural hazard regulation; cultural services: recreation and tourism, boating to the Meghna coast, migratory birds watching. The livelihood of people was heavily impacted by the disasters; however, training support guided them to manage their income by selling their commercially produced animals (e.g., cattle, goats and poultry) before disaster seasons. Humanitarian assistance for supplementary nutrient supply, sanitation and drinking water facilities influenced the unwanted extraction of natural resources from the fragile ecosystems after the disaster. Our study suggested that future research should focus on the influence of one-to-one humanitarian assistance, to what extent ES improvement through this assistance is achievable for natural disaster protection on the Bangladesh coast.
Key Words: Humanitarian assistance, Ecosystem Services, Natural Disasters and Coastal Bangladesh
HOW TO CITE THIS ARTICLE?
MLA
Amin, M. N. et al. “Influence of humanitarian assistances on ecosystem services in Bangladesh coast”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 153-162.
APA
Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S. (2021). Influence of humanitarian assistances on ecosystem services in Bangladesh coast. International Journal of Forestry, Ecology and Environment, 04(01), 153-162.
Chicago
Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S. “Influence of humanitarian assistances on ecosystem services in Bangladesh coast”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 153-162.
Harvard
Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S. 2021. Influence of humanitarian assistances on ecosystem services in Bangladesh coast. International Journal of Forestry, Ecology and Environment, 04(01), pp. 153-162.
Vancouver
Amin, MN, Islam, S, Rahman, MS and Snigdha, SS. Influence of humanitarian assistances on ecosystem services in Bangladesh coast. International Journal of Forestry, Ecology and Environment, 2021 May 04(01): 153-162.
MLA
Amin, M. N. et al. “Influence of humanitarian assistances on ecosystem services in Bangladesh coast”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 153-162.
APA
Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S. (2021). Influence of humanitarian assistances on ecosystem services in Bangladesh coast. International Journal of Forestry, Ecology and Environment, 04(01), 153-162.
Chicago
Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S. “Influence of humanitarian assistances on ecosystem services in Bangladesh coast”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 153-162.
Harvard
Amin, M. N., Islam, S., Rahman, M. S. and Snigdha, S. S. 2021. Influence of humanitarian assistances on ecosystem services in Bangladesh coast. International Journal of Forestry, Ecology and Environment, 04(01), pp. 153-162.
Vancouver
Amin, MN, Islam, S, Rahman, MS and Snigdha, SS. Influence of humanitarian assistances on ecosystem services in Bangladesh coast. International Journal of Forestry, Ecology and Environment, 2021 May 04(01): 153-162.
Article Type: Research Article | No. 18, 2021 | Country: Bangladesh | pp. 163-171 | Open Access
Title: Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh
Authors: Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. and Siddeqa, M.
DOI: https://doi.org/10.18801/ijfee.040121.18
Title: Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh
Authors: Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. and Siddeqa, M.
DOI: https://doi.org/10.18801/ijfee.040121.18
Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh
Abstract
Environmental migration is a recurrent phenomenon in Bangladesh. Though this phenomenon is not considered in national strategic planning properly, but greatly influences social and economic well-being. Authors try to identify the root cause of environmental migration with nature of migration; impacts of climate change on socio-economic condition of the environmental migrants at the Korean Development Corporation (KDC) slum in Barishal, Bangladesh. In order to fulfill the objectives of the research, both primary and secondary data have been collected from various sources. Primary data collection methods include face to face individual survey, focus group discussion and key informants interview while secondary data sources are journal article, book chapter, newspaper article and visiting website like DRR and BDRCS. Major findings are different climatic hazards like flood, cyclone, extreme weather, river erosion and waterlogging was the main hazard in the selected area. The hazards affect the migrants (about 80%) most as they live under the poverty line and more vulnerable to climate change. It is clear from the study that climate change badly affects the socio-economic status like settlement, education, health, job opportunities and livelihoods of the environmental migrants. Proper management and national policies can eradicate the problems of climate change faced by migrants.
Key Words: Climate Change, Environmental Migrants, Impact, Livelihood and Socio-Economic Condition.
Abstract
Environmental migration is a recurrent phenomenon in Bangladesh. Though this phenomenon is not considered in national strategic planning properly, but greatly influences social and economic well-being. Authors try to identify the root cause of environmental migration with nature of migration; impacts of climate change on socio-economic condition of the environmental migrants at the Korean Development Corporation (KDC) slum in Barishal, Bangladesh. In order to fulfill the objectives of the research, both primary and secondary data have been collected from various sources. Primary data collection methods include face to face individual survey, focus group discussion and key informants interview while secondary data sources are journal article, book chapter, newspaper article and visiting website like DRR and BDRCS. Major findings are different climatic hazards like flood, cyclone, extreme weather, river erosion and waterlogging was the main hazard in the selected area. The hazards affect the migrants (about 80%) most as they live under the poverty line and more vulnerable to climate change. It is clear from the study that climate change badly affects the socio-economic status like settlement, education, health, job opportunities and livelihoods of the environmental migrants. Proper management and national policies can eradicate the problems of climate change faced by migrants.
Key Words: Climate Change, Environmental Migrants, Impact, Livelihood and Socio-Economic Condition.
HOW TO CITE THIS ARTICLE?
MLA
Islam, M. T et al. “Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 163-171.
APA
Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. & Siddeqa, M. (2021). Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), 163-171.
Chicago
Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. and Siddeqa, M. “Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 163-171.
Harvard
Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. and Siddeqa, M. 2021. Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), pp. 163-171.
Vancouver
Islam, MT, Mukherjee, A, Nishi, SI, Siddiqua, A and Siddeqa, M. Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh. International Journal of Forestry, Ecology and Environment, 2021 May 04(01): 163-171.
MLA
Islam, M. T et al. “Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 163-171.
APA
Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. & Siddeqa, M. (2021). Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), 163-171.
Chicago
Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. and Siddeqa, M. “Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh”. International Journal of Forestry, Ecology and Environment, 04(01) (2021): 163-171.
Harvard
Islam, M. T., Mukherjee, A., Nishi, S. I., Siddiqua, A. and Siddeqa, M. 2021. Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh. International Journal of Forestry, Ecology and Environment, 04(01), pp. 163-171.
Vancouver
Islam, MT, Mukherjee, A, Nishi, SI, Siddiqua, A and Siddeqa, M. Impact of climate change on socio-economic condition of environmental migrants at Korean Development Corporation (KDC) slum area in Barishal, Bangladesh. International Journal of Forestry, Ecology and Environment, 2021 May 04(01): 163-171.
Volume 04 - Issue 02 | Year of Publication: 2021
Article Type: Research Article | No. 19, 2021 | Country: Sri Lanka | pp. 172-176 | Open Access
Title: Fungal pathogens associated with wilting of Neolitsea cassia trees
Authors: Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S.
DOI: https://doi.org/10.18801/ijfee.040221.19
Title: Fungal pathogens associated with wilting of Neolitsea cassia trees
Authors: Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S.
DOI: https://doi.org/10.18801/ijfee.040221.19
Fungal pathogens associated with wilting of Neolitsea cassia trees
Abstract
Neolitsea cassia, a tree species, belongs to family Lauraceae, is endemic to Sri Lanka. Few planted trees of Neolitsea cassia were severely affected by wilt disease. Two fungal pathogens were consistently isolated from collar region and roots of symptomatic trees. These two fungal species were identified as Colletotrichum and Pestalotiopsis by microscopic observations of conidia and culture characters of isolates on PDA. This is the first report of Colletotrichum and Pestalotiopsis species causing tree wilting of Neolitsea cassia in Sri Lanka. Application of 25 l of fungicide, Thiram + Thiophanate Methyl, 50+30% WP (Homai) solution (1g/l) around the base of each infected plant as a soil drenching was effectively controlled wilting of Neolitsea cassia caused by both pathogenic fungi.
Key Words: Colletotrichum and Pestalotiopsis species, Neolitsea cassia and Tree wilting.
Abstract
Neolitsea cassia, a tree species, belongs to family Lauraceae, is endemic to Sri Lanka. Few planted trees of Neolitsea cassia were severely affected by wilt disease. Two fungal pathogens were consistently isolated from collar region and roots of symptomatic trees. These two fungal species were identified as Colletotrichum and Pestalotiopsis by microscopic observations of conidia and culture characters of isolates on PDA. This is the first report of Colletotrichum and Pestalotiopsis species causing tree wilting of Neolitsea cassia in Sri Lanka. Application of 25 l of fungicide, Thiram + Thiophanate Methyl, 50+30% WP (Homai) solution (1g/l) around the base of each infected plant as a soil drenching was effectively controlled wilting of Neolitsea cassia caused by both pathogenic fungi.
Key Words: Colletotrichum and Pestalotiopsis species, Neolitsea cassia and Tree wilting.
HOW TO CITE THIS ARTICLE?
MLA
Zuhry, A. L. M. et al “Fungal pathogens associated with wilting of Neolitsea cassia trees”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 172-176.
APA
Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S. (2021). Fungal pathogens associated with wilting of Neolitsea cassia trees. International Journal of Forestry, Ecology and Environment, 04(02), 172-176.
Chicago
Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S. “Fungal pathogens associated with wilting of Neolitsea cassia trees”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 172-176.
Harvard
Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S. 2021. Fungal pathogens associated with wilting of Neolitsea cassia trees. International Journal of Forestry, Ecology and Environment, 04(02), pp. 172-176.
Vancouver
Zuhry, ALM, Rajapaksha, RGAS, Kahawatta, J and Kohombange, S. Fungal Pathogens associated with wilting of Neolitsea cassia trees. International Journal of Forestry, Ecology and Environment, 2021 May 04(02): 172-176.
MLA
Zuhry, A. L. M. et al “Fungal pathogens associated with wilting of Neolitsea cassia trees”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 172-176.
APA
Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S. (2021). Fungal pathogens associated with wilting of Neolitsea cassia trees. International Journal of Forestry, Ecology and Environment, 04(02), 172-176.
Chicago
Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S. “Fungal pathogens associated with wilting of Neolitsea cassia trees”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 172-176.
Harvard
Zuhry, A. L. M., Rajapaksha, R. G. A. S., Kahawatta, J. and Kohombange, S. 2021. Fungal pathogens associated with wilting of Neolitsea cassia trees. International Journal of Forestry, Ecology and Environment, 04(02), pp. 172-176.
Vancouver
Zuhry, ALM, Rajapaksha, RGAS, Kahawatta, J and Kohombange, S. Fungal Pathogens associated with wilting of Neolitsea cassia trees. International Journal of Forestry, Ecology and Environment, 2021 May 04(02): 172-176.
Article Type: Research Article | No. 20, 2021 | Country: Bangladesh | pp. 177-186 | Open Access
Title: Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae
Authors: Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S.
DOI: https://doi.org/10.18801/ijfee.040221.20
Title: Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae
Authors: Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S.
DOI: https://doi.org/10.18801/ijfee.040221.20
Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae
Abstract
An experiment was conducted to know the larvicidal activities of dry seed extract of some important forest tree species against the larvae of dengue vector Aedes aegypti (L.) under laboratory condition for round the year. On this purpose late 3rd instar larvae of Aedes aegypti (L.) were exposed to different concentrations (5%, 4%, 3%, 2% and 1%) of dry seed extract of three forest plant species for 0 to 72 hours. The test plants were, Swietenia mahagoni, Anacardium occidentale and Terminalia catappa. After 24 hours of exposure maximum mortality was observed in dry seed extract of Anacardium occidentale (85%), followed by Terminalia catappa (70%) and Swietenia mahagoni (35%). Among the dry seed extracts minimum LC50 value after 24 hours exposure was observed in dry seed extract of Anacardium occidentale (2.384), followed by Terminalia catappa (3.020) and Swietenia mahagoni (6.78). The minimum LC90 values after 24 hours of exposure was observed in dry seed extract of Anacardium occidentale (5.80), followed by Terminalia catappa (13) and dry seed extract of Swietenia mahagoni (16.75). Lowest LC95 values was also recoded in dry seed extract of Anacardium occidentale (7.46), then in Terminalia catappa (21.428) and in Swietenia mahagoni (21.706) after 24 hours of contract of the larvae. From the above information, it is clear that dry seed extract of some forest plants might contain certain phytochemicals that can be used as larvicide that is an environmentally friendly approach.
Key Words: Aedes aegypti, dengue, dry seed extract, larvicide and mosquito
Abstract
An experiment was conducted to know the larvicidal activities of dry seed extract of some important forest tree species against the larvae of dengue vector Aedes aegypti (L.) under laboratory condition for round the year. On this purpose late 3rd instar larvae of Aedes aegypti (L.) were exposed to different concentrations (5%, 4%, 3%, 2% and 1%) of dry seed extract of three forest plant species for 0 to 72 hours. The test plants were, Swietenia mahagoni, Anacardium occidentale and Terminalia catappa. After 24 hours of exposure maximum mortality was observed in dry seed extract of Anacardium occidentale (85%), followed by Terminalia catappa (70%) and Swietenia mahagoni (35%). Among the dry seed extracts minimum LC50 value after 24 hours exposure was observed in dry seed extract of Anacardium occidentale (2.384), followed by Terminalia catappa (3.020) and Swietenia mahagoni (6.78). The minimum LC90 values after 24 hours of exposure was observed in dry seed extract of Anacardium occidentale (5.80), followed by Terminalia catappa (13) and dry seed extract of Swietenia mahagoni (16.75). Lowest LC95 values was also recoded in dry seed extract of Anacardium occidentale (7.46), then in Terminalia catappa (21.428) and in Swietenia mahagoni (21.706) after 24 hours of contract of the larvae. From the above information, it is clear that dry seed extract of some forest plants might contain certain phytochemicals that can be used as larvicide that is an environmentally friendly approach.
Key Words: Aedes aegypti, dengue, dry seed extract, larvicide and mosquito
HOW TO CITE THIS ARTICLE?
MLA
Tohfa, M. A. S. et al. “Junayed, M. Akter, T. and Ahmad, S. (2021). Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 177-186.
APA
Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S. (2021). Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae. International Journal of Forestry, Ecology and Environment, 04(02), 177-186.
Chicago
Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S. “Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 177-186.
Harvard
Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S. 2021. Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae. International Journal of Forestry, Ecology and Environment, 04(02), pp. 177-186.
Vancouver
Tohfa, MAS, Akter, T, Junayed, M and Ahmad, S. Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae. International Journal of Forestry, Ecology and Environment, 2021 June 04(02):177-186.
MLA
Tohfa, M. A. S. et al. “Junayed, M. Akter, T. and Ahmad, S. (2021). Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 177-186.
APA
Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S. (2021). Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae. International Journal of Forestry, Ecology and Environment, 04(02), 177-186.
Chicago
Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S. “Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae”. International Journal of Forestry, Ecology and Environment, 04(02) (2021): 177-186.
Harvard
Tohfa, M. A. S., Akter, T., Junayed, M. and Ahmad, S. 2021. Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae. International Journal of Forestry, Ecology and Environment, 04(02), pp. 177-186.
Vancouver
Tohfa, MAS, Akter, T, Junayed, M and Ahmad, S. Evaluation of dry seed extracts of some forest tree species against Aedes aegypti larvae. International Journal of Forestry, Ecology and Environment, 2021 June 04(02):177-186.