OF THE 



UNIVERSITY 



CONIFER SEEDLING DISEASE '297 



the conidia of fungi are carried considerable distances by 

 wind, birds, and insects, and no amount of attention in 

 the way of removing the parasite from the tea plants would 

 avail if the supply of conidia requisite for inoculating the 

 tea plants were formed on other plants growing in the 

 neighbourhood. 



Watt, The Pests and Blights of the Tea Plant. 

 Massee, Kew Bulletin, 1898, p. 106, figs. 



CONIFER SEEDLING DISEASE 



(Pestalozzia hartigii, Tubeuf.) 



Seedlings of spruce and silver fir are frequently destroyed 

 in large numbers, due to the injuries caused by this Pesta- 

 lozzia. In summer young plants lose their colour and die. 

 On examination it is found that the cortex just above 

 ground is destroyed, and closer search reveals the presence 

 of numerous minute masses of fungus mycelium or stromata 

 bearing those peculiar conidia characteristic of the genus 

 Pestalozzia. 



PREVENTIVE MEANS. Remove and burn all diseased 

 seedlings. 



Tubeuf, Beitr. zur Kenntniss der Baumkrankheiten, p. 40, 

 pi. v., 1888. 



Hartig and Somerville, Diseases of Trees, p. 136, figs. 



MAPLE BLIGHT 



(Septogloeum harligianum, Sacc.) 



The year-old branches of maple (Acer campestre], 

 especially those forming the crown of the tree, are often 



