Ecology of coffee green bug, Coccus viridis (Green) and its entomopathogenic fungus, Cephalosporium lecanii: Zimm
Under field conditions, the green bug Coccus viridis (Green) population was positively correlated and the infection by the fungus, Cephaloporium lecanii Zimm., negatively so with mean maximum most and minimum-most temperatures recorded at 8 a.m. and p.m. While maximum-most relative humidity (afternoon) showed negative correlation with the pest population, forenoon and afternoon mean humidity and maximum most humidity (afternoon) showed positive correlation with the fungus infection. Total rainfall one and two weeks prior to the observation was negatively correlated with the pest population and positively with the fungus infection. The multiple correlation showed the greater influence of temperature than humidity on the pest population as well as on the fungus infection. There existed a negative correlation between the pest population and the natural infection of the fungus
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| Format: | biblioteca |
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| Subjects: | COFFEA ARABICA, ECOLOGIA, INSECTOS DAÑINOS, COCCUS, CONTROL BIOLOGICO, HONGOS ENTOMOGENOS, CEPHALOSPORIUM, INFECCIONES, CONDICIONES AMBIENTALES, COCCUS VIRIDIS, CEPHALOSPORIUM LECANII, |
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| Summary: | Under field conditions, the green bug Coccus viridis (Green) population was positively correlated and the infection by the fungus, Cephaloporium lecanii Zimm., negatively so with mean maximum most and minimum-most temperatures recorded at 8 a.m. and p.m. While maximum-most relative humidity (afternoon) showed negative correlation with the pest population, forenoon and afternoon mean humidity and maximum most humidity (afternoon) showed positive correlation with the fungus infection. Total rainfall one and two weeks prior to the observation was negatively correlated with the pest population and positively with the fungus infection. The multiple correlation showed the greater influence of temperature than humidity on the pest population as well as on the fungus infection. There existed a negative correlation between the pest population and the natural infection of the fungus |
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