CONTENTS. 



PAGE 



MEMORANDUM ----- 3 



REPORT ON INQUIRY OF 1892 : 



Extent of Injury _.-- 6 



Estimate of Loss .-.----,- 6 

 Date of Appearance of Rusty (Uredo) Form - 7 



Date of Appearance of Black (Teleutospore) Form - 7 



Nature of the Soil, and the relative Mineral and Organic 



Constituents .._.--.-- 8 

 Previous Cropping and Manuring ------ 8 



Nitrate of Soda - 10 



Date of Sowing - - ... 10 



Varieties of Wheat 11 



Weather. 12 



Barberry Trees - 12 



Experience of former Seasons _---.- 14 



Other Particulars on the Subject 16 



Previous Investigations concerning Mildew - 18 



Mildew in Foreign Countries : 



Australasia ..._..--- 21 



Germany _..._- .___24 



India 24 



Japan -----------25 



The Cause of Mildew .... 25 



The Life History of the Fungus 26 



The Berberis and Mildew 30 



Predisposition -----------32 



Modes of Prevention ----------34 



Preventive Spraying - 34 



Rust-resistant Varieties ---------39 



Spring Rust and Mildew - - - - 42 



LIST OF PLATES. 



PLATE I. Barberry Blight (^Ecidium Berberidis) 27 



PLATE II. Summer Rust and Mildew of Wheat (Puccinia Gramiitix) 28 

 PLATE III. Wheat Grains. A. from healthy plant ; B. from plant 



attacked by Rust- - - 33 



PLATE IV. Spring Rust and Mildew of Wheat (Puccinia Rnbigo Veni) 42 



