Séance du 12 Jdiiricr l!jil II» 



cd into Kgypl ïroiii India as llie allack is coiiliiicd to 

 a coniparalivcly small arca in this country and spread 

 rapidly from a small orii>inal inlcslalion until mea- 

 sures \\cre adopted to limit its activities. iMirthcr no 

 parasil{^ has pr(j\ed itself of any r(Nd \altu> such as 

 EubU'ììinìd ((uadrilincdld and S[)dl<jiiis cpiiis in India. 



The Hibiscus M(>ai\ Hu^ was first riM'orded from 

 the late Sir Mexander l>aird"s j.'-ardcn at Malaria in 

 ujia althout;h it is possible that it existed at Ai)bassia 

 as early as 1908. It is tolerably certain, however, that 

 the pest orifrinated in that locality and has since 

 spread all over C^airo. As early as njiT) the attack was 

 bad on tlie Malaria Line but it was not till the latter 

 half on lf)18 that the first outbreak of any im- 

 portance occurred actually in ('airo. riic followintr 

 year there was a much more sciions outbreak whu'h 

 was instrumental in killin«: many tiees including'' 

 many of the magnificent lebbekhs at Giza. 



The attack which xNas at first confiruMJ to ('airo 

 has since spread southwards as fai' as Heni-Snef and 

 the Fayoum but it does not extend north of ('airo 

 further than Shubra \ illaj^e and Abu Zaabal. ihe 

 xvind Is undoubtedly the chief distributing a;ient and 

 as the prevalent ^\\nd in this country is frcim the 

 north, we shoidd exj)cct the infected aiea to sjiread 

 more raj)idly to tbe South. 



I nfortunately the Hibiscus Mealy Bun- is very 

 nearly a luii versai feeder; it prefers the permanent 

 tree or shrub and pailicularly those enfeebled by old 

 age or the ravages of some other pest. Some of the 

 more important foodplarits are Hibiscus spp. Morns 

 spp, \(biz:ia Icbbckh, Bdiiìiìiìd spp, Crcvilti'a robu- 



