TY - GEN T1 - The relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of cocoa pods and rainfall pattern A1 - Rita Muhamad LA - English YR - 2023 UL - http://discoverylib.upm.edu.my/discovery/Record/oai:http:--agris.upm.edu.my:0-23537 AB - 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 mirid populations. The numbers of cherelles and pods on a tree determine its attractiveness, since significantly more cherelles and pods were found on infested trees than on uninfested trees. KW - Helopeltis KW - Cocoa beans KW - Plant pests KW - Research KW - Mirids KW - Rainfall KW - Food supply KW - Weather conditions KW - Infestation KW - Pods KW - Insecticides KW - Growth ER -