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Report by Mr. F. Stoward, Botanist and Pathologist 

 OF THE Agricultural Department of Western Australia. 



The chief insect pests dealt with, and the preventive and com- 

 bative measures recommended and apphed, may be conveniently 

 enumerated under the following headings : 



(a) Cereal and stored-food pests. 



{b) Field-crop insect pests. 



(c) Orchard insect pests. 



(d) Animal insect pests. 



The names given in each case are the casual and scientific 

 names respectively : 



{a) Cereal and Stored-food Pests. 



1. Flour Moth {Asopia farinalis). 



2. Mediterranean Mill Moth {Ephestia kuehniella). 



3. Grain Moth {Gelechia cerealella). 



4. Grain Weevils : 



{a) Wheat Weevil {Calandra granaría), 

 (b) Rice Weevil {Calandra oryzce). 



5. Flour Beetle {Tribolium jerrugineum). 



The combative means recommended and employed with 

 success is fumigation of infested material with carbon bisulphide, 

 and subsequent suitable storage conditions. 



{b) Field-crop Insect Pests. 



1. Potato Moth {Gelechia opercueUa). 



2. Cabbage Moth {Plutella cruci fer arum). 



3. Cutworm Moths (2 spp.) {Heliothis armígera 



and Agrotis nmnda). 



4. Cabbage Aphis and Turnip Aphis {Aphis 



brassicœ). 



5. Rutherglen Bug {Nysius vinitor). 



The combative measures used against pests other than 

 the Potato Moth are (2, 3, and 4) spraying, baiting, and hand- 

 picking. In the case of pest 5 the measures recommended rely 

 mainly on farm-sanitation, deep, thorough cultivation, and the 



