Population dynamics of Euphyllura olivina Costa, 1857 (Psyllidae: Hemiptera) in olive trees in the semi-arid region of Djelfa (Algeria)
2023
Nassima CHAABANE | Smail CHAFAA | Frah NAAMA | Yassine NOUIDJEM | Fateh MIMECHE
We studied the population dynamics of the olive psyllid Euphyllura olivina Costa, 1857 in a semi-arid region (Djelfa, central Algeria) during a year, from December 2017 to November 2018. The visual control approach and the striking method were used to monitor the different stages of this pest. The species had two generations per year: a spring generation from March to June and a fall generation from September to November. The first generation of eggs is laid in March and continues through May. The second generation begins in late August and early September and continues through November. The statistical study of the impact of the researched climatic factors (minimum, maximum, and average temperatures; precipitation and frost) on the various stages differs from one stage to the next. Article history: Received: 16 March 2023; Revised: 14 December 2023; Accepted: 15 December 2023; Available online: 28 December 2023.
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