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The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern


Citation

Muhamad Awang, Rita and Chung, Gait Fee (1993) The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern. Pertanika Journal of Tropical Agricultural Science, 16 (2). pp. 81-86. ISSN 0126-6128

Abstract / Synopsis

Investigation on factors affecting the population fluctuations of Helopeltis theivora in relation to food supply and rainfall in the field was conducted. Results showed that population fluctuations seem to be dictated by rainfall and numbers of available pods as shown by positive correlations between them. The results also showed a significant yield decrease with increased mind populations. The numbers of cherelles and pods on a tree determine it attractiveness, since significantly more cherelles and pods were found on infested trees than on uninfested trees.


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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
Publisher: Universiti Putra Malaysia Press
Keywords: Population fluctuations; Helopeltis theivora; Cocoa pods; Rainfall.
Depositing User: Nasirah Abu Samah
Date Deposited: 24 Nov 2009 04:53
Last Modified: 28 Aug 2015 09:08
URI: http://psasir.upm.edu.my/id/eprint/3182
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