i i sAUir.M. 



This tomato disease has proved very de-tructive 

 during recent years in P>ritain, particularly in tin- 1-1.- of 

 Wight and the Channel Island-. Plants are attacked \\li.-n 

 [iiite young, but the disease seldom manifest- it-elf outwardly 

 till the plant is full grown. The first -vmptom of di-< 

 is drooping of the leave-, with or without di-colo ration. At 

 this sta-e the roots of attacked plants will lie found to have a 

 yellowish brown colour in the wood region. The mycelium 

 of this fungus will be found in the vessel- and other elements 

 < if the root. They are believed to originate from resting-sporea 

 which have hibernated in the soil and ^i\vn off -eim-tubes by 

 which young rootlets were infected. The mycelium make- it- 

 way up the tomato stem, discolouring the vascular bundle- a- it 



s. The conidia are produced on all diseased or-an- as a 

 whitish bloom on the epidermis. The earlier conidia (l>ij>l- 

 /A/////////) are oval and one- or two-celled, but they are soon 

 replaced by pale orange crescent-shaped conidia of tin- true 

 Fiisni-iiiiii type. The resting-spores are produced on the hyphae 

 in the ti-siies of the decayin- host-stem ; after hibernation, they 

 u'-iiniiiate and produce hyphae which give off the />//////,/, //'////, 

 Stage. .Massee found that only the germ-tubes from iv-lin^- 

 sjiores were able to infect tomato plants The same author 

 does not eon-ider fungicides of much avail on accounl of the 

 disease beginning IVom the roots. ( 'areful removal and de-ti-iic- 

 tion of all infected material, and a liberal application of lime 

 to the -oil are measures recommended. 



Fus. limonis l'.rio-i (Fusisporium limanis I'.iio-j). This is 

 Jveii by Iliio-i as the cau<e of ' mal-di-uomma " of oral 

 and lemon trees in Italy and el-ewhere : ' Webber and Swindle-' 

 ascribe the di-ea-e of the orange and lemon in l-'lorida knoun 

 .1- ' |oot-io! " to the same fuii'_Mi<. In Florida I he dama-c done 

 real and much more serious than that caused by any other 

 disease of the same plant-. It may be red the 



exudation of -um from patche- near the ba-e ,,f the live. The 

 hea enlai--e and the di-ea-e spreads round the trunk and 

 downwards into the rooi-, pa --inn inwards from hark to cambium 

 and \\ood, killini: the tlSSUCS as it g06& 'Mb'-r -\iiiptoins 



i, "M.il di L'"|IIIM:I," M* ni"i-i'i '/>'! /,'. ! . 'in--. I- 



-\Vi-lili.-r .ni'l Swin^'li-, " I 1 ; iticiu, fruits in I I 



>!>. "/' Agriatllun lioii.i,, \ - i - . 



