In Ethiopia, Cupressus lusitanica and Juniperus procera are important tree species. The incidence of the cypress aphid, Cinara cupressi, which has not been reported before on the exotic Cupressus lusitanica is becoming catastrophic. The appearance of the insect was reported for the first time in 2003 in Ethiopia. However, information is scarce on the status of this species in northeast Amhara state. The objectives of this study were to assess the extent of damage, abundance and status of the cypress aphid on C. lusitanica and J. procera in the protected and cultivated forests of South Wollo, Ethiopia. Results reveal that tree compositions of the three study areas differed. The dominant tree species were C. lucitanica (15–80%), Olea europaea (5–90%) and J. procera (14–70%). The cypress aphid showed significantly higher levels of infestation on C. lusitanica (35–90%) than on J. procera (1–16%). Moreover, there was higher C. lusitanica mortality (40–93%). In contrast, there was low infestation (1–16%) on J. procera and no mortality. The results reveal that the cypress aphid causes enormous losses of C. lusitanica. Therefore, it is recommended that insect surveillance be strengthened and the introduction bioagents be considered and integrated with other insecticides to minimize the degree of C. lusitanica infestation and loss.
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The author thanks the South Wollo and Dessie city agriculture offices for providing information on the forest areas and encouraging this research. Wollo University is highly appreciated for support of the field work.
Project funding: This work was financially supported by Wollo University, Ethiopia.
The online version is available at http://www.springerlink.com
Corresponding editor: Chai Ruihai.
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Demeke, A.D. Status of cypress aphid on Cupressus lusitanica and Juniperus procera in protected and cultivated forests of South Wollo, Ethiopia. J. For. Res. 31, 333–337 (2020). https://doi.org/10.1007/s11676-018-0819-y
- Cupressus lusitanica
- Cinara cupressi
- Juniperus procera