Victor Joly Dzokou Soufo Laurentine Tamesse Joseph Lebel


Eucalyptus spp belong to the family of Myrtaceae and grow all over the world and are adapted to different climates and soils. In Cameroon, these plants are very important for their medicinal and ecological virtues. Eucalyptus globulus has economically and ornamentally values. Blastopsylla occidentalis Taylor (Psylloidea: Aphalaridae) is one of the insects feeding on this plant and its causes severe damages to their host plants. Significant damage occurred in nurseries and in a very young plantations of Eucalyptus spp. The biology of B. occidentalis was studied from July 2010 to June 2011 at Yaounde. The parameters mating process, choice of the egg-laying site by the females, fecundity of the females, longevity of the adults, embryonic and larval development, life cycle and sex ratio were studied. The results showed that males emerged before females, and the mating process lasted about 42 minutes. The longevity of adults was 11 days on average and egg-laying began 8 days after emergence. The average fertility was 38 eggs per female. The eggs were laid on the buds, bracts, young leaves and twigs of its host plant. The life cycle, from egg to egg, required 32 days on average. The sex ratio was close to 1.03. This species fed and developed on Eucalyptus spp. has never been observed on other plants species in the study area, suggesting a specificity of this psyllid to its host plant. These results can be considered as an important step for the establishment of integrated pest control against Eucalyptus psyllid pest species in Cameroon.


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Biology, Cameroon, Eucalyptus, Psyllid

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Dzokou, V. J., Laurentine, S., & Joseph Lebel, T. (2020). Biology of Blastopsylla occidentalis (Hemiptera: Psylloidea: Aphalaridae), a pest of Eucalyptus globulus (Myrtaceae) in Yaounde, Cameroon. Journal of Applied and Natural Science, 12(1), 30-35. https://doi.org/10.31018/jans.v12i1.2220
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