88 
corresponding to that of the Rose mildew. The mildews 
of apple, chrysanthemums, peas, hops, strawberries, and 
gooseberries are all common in this country. The 
American Gooseberry mildew is the most destructive of 
these, and growers of gooseberries have to observe certain 
restrictions prescribed by the Government in regard to this 
disease. Full particulars of the symptoms and treatment 
may be obtained from the Board of Agriculture.* 
Preventive measures against most of these mildews are 
similar. The main facts to consider are the means of 
spreading during the season and the method of carrying 
over from autumn to spring. Sulphur, or one of its com- 
pounds, is the most effective fungicide for use in combat- 
ting mildews. Plants may be dusted with flowers: of 
sulphur or sprayed with liver of sulphur. Sprays, con- 
taining lime and sulphur, are now extensively used with 
success, especially in America, against the mildews of 
hops and gooseberries.t| The treatment with sulphur, or 
its compounds, however, is only effective against the 
summer stage of the fungus and other measures must be 
taken to destroy the resting fungus. The only satis- 
factory method of dealing with this is by the removal 
and immediate destruction of all branches and leaves 
bearing perithecia. Otherwise no amount of spraying will 
prevent the disease recurring year after year. 
* Leaflet No. 105. 
+ Eyre and Salmon have recently recommended the use of 
ammonium sulphide against American Gooseberry Mildew. 
“Journal Board Agric.,” Feb., 1916. 
