m 



THE roSSllilLlTY UF A MEDICIXAJ. JiEMEDY EUJt 

 CilESTA'L'T JJJ.KJIJT. 



j;V I>i:. CAKOLIXIO KCMIJOLD, I.N (JllAKdl'] OF Tin-: l'i:.\.\SVL\A.\IA 

 ClIKSTiM'T TitlOK liLKJlIT CO.MAIISSIUNS J.Ai!UJlAT(JltV. 



Mr. ( 'liaiiiiiaii, l.adics and ( iciil Iciiicii : Allliougii in llie [tvo- 

 i^ranimc, I lie lillc of my rcniai-ks lias been given as llic possibility 

 of a medicinal rciiicdy for (-licslnut bliglit, 1 iiindi i»r(,*fer to c<jn- 

 iiiie myself to a <|nestion of medicinal Ireatmeiil as I beiicn'e it 

 would limit me loo miicli were I lo liy to discuss a remedy, a 

 (:ui'(^all, oue uiij^iit say, when we have 011I3' started to work out 

 the ]»roblems in (he case. .My main task is to attempt to lind the 

 relation between the chestnut tree and the fungus \\liicii causes 

 its death; consequently my work is with individual trees. 



The question of medicinal treatment slnuild be considere<l 

 broadly from two sides. Firstly, the side of securing better 

 health conditions for the chestnut trees, in order that they may 

 have the ability better to resist the disease. This we will call 

 preventive treatment. Second!}', the aspect of curative treat- 

 ment. 



Tudei- llie liist heading come the details of water, f(»od, light, 

 in other words, matters of environment. As for water, there is 

 the ([uestion as t * whether or not droughts of recent years are 

 partially responsible for the spread of the disease in the chestnut 

 tree. I am now conducting experiments in which chestnut trees 

 are being exposed to infect ion under varying conditions from dry- 

 ness to excessive moisture, both of atmosi)here and soil. These 

 experiments may also throw some light on the re])ort that the 

 blight spreads ra]iidly where trees are in a crowded co])]>ice, 

 while trees growing on the ridge of a hill arc nniufecte(l. 



In the mat ler of food, \arions fciM ilizers are licing subject e(l to 

 tests on gi'owiiig trees. 



I am about to start a series of c\']»erimen(s in \\hicli young 

 trees are to be grown in solutions of dilTerenl chemicals, with 

 the object of hasieniug the growth (»f the l»ark, oi- of increasing 



