Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak

Incidence of insect pest in Shorea macrophylla (Engkabang jantong) had a critical leaf damage compare to Dryobalanops beccarii (Kapur bukit) in monoculture planting. The main objectives are to assess the leaf damage and influence the damages by tree ages, light intensity and relative humidity. This...

Full description

Saved in:

Bibliographic Details
Main Author:	Elfera, Polly
Format:	Thesis
Language:	English
Published:	2016
Subjects:	QH Natural history
Online Access:	http://ir.unimas.my/id/eprint/30656/1/Elfera%20Binti%20Polly%20ft.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-unimas-ir.30656
record_format	uketd_dc
spelling	my-unimas-ir.306562023-05-16T03:39:08Z Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak 2016 Elfera, Polly QH Natural history Incidence of insect pest in Shorea macrophylla (Engkabang jantong) had a critical leaf damage compare to Dryobalanops beccarii (Kapur bukit) in monoculture planting. The main objectives are to assess the leaf damage and influence the damages by tree ages, light intensity and relative humidity. This study was conducted at Gunung Apeng to assess the leaf damage tree of Engkabang jantong and Kapur bukit planted in the enrichment planting by line planting technique in the disturbed secondary forest. The light intensity was measured using light meter and converted to percentage while relative humidity was taken using whirling hygrometer and change to percentage using relative humidity table. The result showed that the degree of leaf damage decrease with the age of the Engkabang jantong tree. In average, the leaf damage of Engkabang jantong is 45.06%. Leaf damage of Engkabang jantong caused by insect pest was highly occurred high light intensity and high relative humidity. Leaf damage of Kapur bukit was significantly very low with average 0.89% damages. The age stand, light intensity and relative humidity did not affect the leaf damage of Kapur bukit attacked by insect pest. The common leaf damages on Engkabang jantong tree was ‘hole damage’ caused by insect order Lepidoptera, while Kapur bukit tree with folded leaf damage. In this case, Kapur bukit (Dryobalanops beccarii) was the most suitable species as compared to Engkabang jantong (Shorea macrophylla) for a reforestation programme using enrichment line planting in term of low leaf damage caused by insect pest attack at different stand ages, light intensity and relative humidity. Universiti Malaysia Sarawak(UNIMAS) 2016 Thesis http://ir.unimas.my/id/eprint/30656/ http://ir.unimas.my/id/eprint/30656/1/Elfera%20Binti%20Polly%20ft.pdf text en validuser masters Universiti Malaysia Sarawak(UNIMAS) Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	QH Natural history
spellingShingle	QH Natural history Elfera, Polly Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak
description	Incidence of insect pest in Shorea macrophylla (Engkabang jantong) had a critical leaf damage compare to Dryobalanops beccarii (Kapur bukit) in monoculture planting. The main objectives are to assess the leaf damage and influence the damages by tree ages, light intensity and relative humidity. This study was conducted at Gunung Apeng to assess the leaf damage tree of Engkabang jantong and Kapur bukit planted in the enrichment planting by line planting technique in the disturbed secondary forest. The light intensity was measured using light meter and converted to percentage while relative humidity was taken using whirling hygrometer and change to percentage using relative humidity table. The result showed that the degree of leaf damage decrease with the age of the Engkabang jantong tree. In average, the leaf damage of Engkabang jantong is 45.06%. Leaf damage of Engkabang jantong caused by insect pest was highly occurred high light intensity and high relative humidity. Leaf damage of Kapur bukit was significantly very low with average 0.89% damages. The age stand, light intensity and relative humidity did not affect the leaf damage of Kapur bukit attacked by insect pest. The common leaf damages on Engkabang jantong tree was ‘hole damage’ caused by insect order Lepidoptera, while Kapur bukit tree with folded leaf damage. In this case, Kapur bukit (Dryobalanops beccarii) was the most suitable species as compared to Engkabang jantong (Shorea macrophylla) for a reforestation programme using enrichment line planting in term of low leaf damage caused by insect pest attack at different stand ages, light intensity and relative humidity.
format	Thesis
qualification_level	Master's degree
author	Elfera, Polly
author_facet	Elfera, Polly
author_sort	Elfera, Polly
title	Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak
title_short	Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak
title_full	Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak
title_fullStr	Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak
title_full_unstemmed	Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak
title_sort	incidence of insect pest on shorea macrophylla and dryobalanops beccarii at gunung apeng reforestation area, sarawak
granting_institution	Universiti Malaysia Sarawak(UNIMAS)
granting_department	Faculty of Resource Science and Technology
publishDate	2016
url	http://ir.unimas.my/id/eprint/30656/1/Elfera%20Binti%20Polly%20ft.pdf
_version_	1783728390317015040

Incidence of insect pest on shorea macrophylla and dryobalanops beccarii at Gunung Apeng Reforestation area, Sarawak

Similar Items