INJURIOUS TO THE LEBBEK TREES OF CAIRO. 



131 



boundary, were also badly attacked (Plate X). Occasional trees in other 

 districts of Cairo were infested and seriously injured by D. perniciosus, but 

 compared with the streets mentioned by name, the damage was insignificant. 



The area in which the pest played such havoc is, generally speaking, the 

 most modern part of Cairo City. During the past fifteen years the builder 

 has been very busy, converting what was once a district of private houses 

 with large gardens fronting on to the main roads, into a quarter closely built 

 over with shops and big blocks of flats and business offices. No doubt the 

 trees have been influenced by this change. 



The following table illustrates in a marked degree the extent of the injury 

 caused by this pest under certain conditions. It shows the number of 

 lebbek trees which were badly infested with Dactylopius during the summer 

 of 1909 in those streets lying within the area marked on the map (Plate X). 



Table showing the damage done by the Lebbek Mealy Bug in the 

 streets indicated on the Map (^Plate X). 



Name of Street. 



I. 



Full 



Complement 



of Trees. 



II. 



Total 

 number of 



Trees 

 seriouslj' 

 injured in 



1909. 



Percentage 



of Full 



Complement 



of Trees. 



III. 



Number of 

 Trees which 



have since 

 died and been 



removed 

 (Feb. 1910). 



1. Chareh KRsr el Nil 



2. Chareh el Manakh 



3. Chareh Soliinan Pasha 



194 



106 



173 



173 



110 



230 



130 



101 



90 



88 



78 



139 



20 



28 



223 

 62 

 47 



1 86 



: 83 



59 

 50 

 48 

 45 

 39 

 38 

 36 

 24 

 19 

 18 

 14 

 8 



18 

 13 

 12 



44';, 



78 

 34 

 29 



44 



19 



30 

 38 



40 



27 

 24 

 13 

 70 

 29 



8 

 21 



25 



37 



62 



33 



15 



17 



28 



23 



26 



17 



6 



12 



10 



3 



3 



15 

 3 

 



4. Chareh Emad el Din 



5. Chareh el Madabegh 



6. Chareh Koubri Kasr el Nil 



7. Chareh Boulak 



8. Chareh el Maghraby 



9. Chareh Gameh Charkasse 



10. Chareh Kamil and Chareh Abdin . . 



11. Chareh Clieikh Hamza 



12. Chareh el Bostane 



13. Chareh Marietta Pasha 



1 14. Chareh Mazloum Pasha 





15. Chareh Abbas (west part) 



16. Chareh Tewfik 



■ 17. Chareh Taher 







Total i 



1 



1992 



GIO 



SO 



310 ' 



