The potential effects of climate change and insect pest distribution in the highland region

Rozimah Muhamad Rasdi, . and Saiful Zaimi Jamil, . and Mohd Masri Saranum, . and Mohd Fairuz Bin Md Suptian, . (2023) The potential effects of climate change and insect pest distribution in the highland region. International Journal of Agriculture, Forestry and Plantation (Malaysia), 13. pp. 133-141. ISSN 2462-1757

The agricultural industries in Malaysia have been negatively affected by climate change and global warming. Changes in the pattern of climate parameters, such as minimum and maximum temperatures, precipitation, and humidity, impact agricultural production. The phenomenon of temperature increase has a significant impact on insect dynamics, leading to the occurrence of insect outbreaks, particularly in regions characterized by high elevations. Based on the data provided by the Malaysian Meteorological Department (MET), there has been a documented rise in temperature in the Cameron Highlands region over the period from 1985 to 2020. The data presented in this study has been substantiated by the utilization of a data logger to record temperature data in the field. The interpolation analysis method implemented in ArcGIS 10.5 is employed to ascertain the spatial distribution patterns of climate parameters and insect pests inside cabbage farms. The results of the study indicate that the predominant pest of cabbage, Plutella xylostella, exhibited increased population growth in regions characterized by elevated temperatures and greater precipitation. Indeed, there has been an observable escalation in the migration patterns of insects into elevated geographical regions. Based on initial analyses, insects have exhibited a growing capacity for acclimating to elevated temperatures, heightened humidity levels, increased precipitation, and alterations in the atmosphere's chemical composition of the atmosphere as a consequence of insecticide application. This study aims to analyze the spatial distribution of insect pests in the highlands region and examine the correlation between their prevalence and the fluctuations in temperature patterns in highland areas.

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Abstract

The agricultural industries in Malaysia have been negatively affected by climate change and global warming. Changes in the pattern of climate parameters, such as minimum and maximum temperatures, precipitation, and humidity, impact agricultural production. The phenomenon of temperature increase has a significant impact on insect dynamics, leading to the occurrence of insect outbreaks, particularly in regions characterized by high elevations. Based on the data provided by the Malaysian Meteorological Department (MET), there has been a documented rise in temperature in the Cameron Highlands region over the period from 1985 to 2020. The data presented in this study has been substantiated by the utilization of a data logger to record temperature data in the field. The interpolation analysis method implemented in ArcGIS 10.5 is employed to ascertain the spatial distribution patterns of climate parameters and insect pests inside cabbage farms. The results of the study indicate that the predominant pest of cabbage, Plutella xylostella, exhibited increased population growth in regions characterized by elevated temperatures and greater precipitation. Indeed, there has been an observable escalation in the migration patterns of insects into elevated geographical regions. Based on initial analyses, insects have exhibited a growing capacity for acclimating to elevated temperatures, heightened humidity levels, increased precipitation, and alterations in the atmosphere's chemical composition of the atmosphere as a consequence of insecticide application. This study aims to analyze the spatial distribution of insect pests in the highlands region and examine the correlation between their prevalence and the fluctuations in temperature patterns in highland areas.

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Item Type:	Article
AGROVOC Term:	cabbages
AGROVOC Term:	pest control
AGROVOC Term:	agricultural production
AGROVOC Term:	climate change
AGROVOC Term:	temperature
AGROVOC Term:	precipitation
AGROVOC Term:	humidity
AGROVOC Term:	population growth
AGROVOC Term:	acclimatization
Geographical Term:	Malaysia
Depositing User:	Mr. Khoirul Asrimi Md Nor
Date Deposited:	10 Jun 2026 12:37
Last Modified:	10 Jun 2026 12:37
URI:	http://webagris.upm.edu.my/id/eprint/3996

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