Evaluation of the Efficacy of some Pesticides and Plant Extracts for Controlling of Fig Gall Psyllid Insect, Pauropsyll Abuxtoni (Laing, 1924) (Triozidae

Zakaria Al- naser(1)* and  Mohamad Kanouh (1)

(1). Department of Plant Protraction, Faculty of Agriculture, Damascus University, Damascus, Syria.

(*Corresponding: Dr.  Zakaria Al- naser: E-Mail:  zinzanasera@ gmail.com).

Received:27/02/2022                       Accepted: 31/08/2022

Abstract: 

The investigation was carried out during 2021 at the laboratories of Plant Protection Dept., Faculty of Agriculture, Damascus University and Abu Jarash fileds. Three pesticides (Chlorpyrifos, Dimethoate (Organ-ophosphorous) and Acetamiprid (Neonicotinoid)). The ethanol  extracts of Eucalyptus camaldulensis Dehn, Inula viscosa L. and Mill. Lavandula angustifolia leaves, and mixture of pesticides and extracts, were evaluated against the Immature of fig gall psyllid (   Pauropsyll abuxtoni (Triozidae)) insect on ficus carica L. tree in filed. The results showed that Acetamiprid  + L. angustifolia and Dimethoate+ L. angustifolia showed significantly superiority effects on Immature.  of P. abuxtoni, in comparison with other treatments in filed tests. However, Acetamiprid followed by Dimethoate alone  and L. angustifolia showed the highest effect percentage compared with the other treatments in filed testes. Whereas, the corrected mortality percentage was, 92.65,89.19,73.12 and 69.25%, at 7th day of second treatment in filed, respectively. While, Chlorpyrifos gave the modality percentage of efficacy on the Immature.  of P. abuxtoni in the field, were the percentage 35.69% at 7days after the second spray. In the contrast, ethanol extract of E. camaldulensis gave the lowest percentage (24.19%) of efficacy on the Immature.  of P. abuxtoni in the field,in the field tests compared with other insecticides. Also, the results showed that, the efficacy percentage increases gradually as the exposure period increases. Therefore, the ethanol extract of L. angustifolia and  Inula viscose  and mixture thyme with insecticides  can be used in integrated management of P. abuxtoni as an environmental friendly insecticide.

Key words: ficus carica , insecticides, P. abuxtoni, plant extracts.

Full paper in Arabic: pdf