Sinan Sleman*⁽¹⁾, and Nabil AboKaf ⁽²⁾

 (1) Department of Plant Protection, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

(2) Department of Plant Protection, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

(*Corresponding author: Eng. Sinan Sleman. E-Mail: sinansleman21@gmail.com )

Received: 8/09/2021                Accepted: 31/01/2022

Abstract:

   Red gum lerp psyllid Glycaspis brimblecombei Moore, 1964 (Hemiptera: Aphalaridae) is one of the most serious pests of several species of Eucalyptus, especially Eucalyptus camaludensis the most widespread species in Syria. This study was carried out in 2020 in Agricultural scientific research Centre in Lattakia – Syria, to estimate biological parameters, longevity of different stages and fecundity of psyllid adults in laboratory conditions. Biological parameters were analyzed according to the theory of Age-stage two-sex life table. The values of intrinsic rate of increase (r), the finite increase of rate (λ), and net reproductive rate (R_o) were (0.047 day^-1, 1.04 day^-1, 5.43 offspring/individual) respectively. Generation time (T) was (35.98 day).  longevity of psyllid (29.65 ± 0.09 day).  Adult Longevity of females and males were (14 ± 0.31 day, 11.63 ± 0.15 day) respectively. Sex ratio (1 : 1.7) female : male.

Keywords: Red gum lerp psyllid, Glycaspis brimblecombei, Eucalyptus, life tables, Syria.

Full paper in Arabic: pdf