PARASITIC AND INJURIOUS INSECTS. 



Report of Walter W. Froggatt, Entomologist to the 

 Department of Agriculture of the State of New South 

 AVales, and Investigating Entomologist for the States of 

 Victoria, South Australia, and Queensland, during his study 

 of Parasitic and Injurious Insects in various parts of the 

 world in 1907-1908. 



PART I. 

 General Report. 



(1) The commercial value of introduced Parasites to deal with insects 



that are pests. 



(2) The range and spread of Fruit-flies and the methods adopted in 



other countries to check them. 



(3) The value of Parasites in exterminating Fruit-flies. 



(4) Habits of cosmopolitan Insect Pests. 



A (.'ONFEUEXCE of Government Entomologists was held in Sydney on the 9th 

 of July, 1906, at which the question of parasites as effective checks to 

 injurious insects was considered, and an offer made by the Commissioner of 

 the State Board of Horticulture of California to several of the Australian 

 States, to supply them each with a goodly collection of the parasite of 

 Codling Moth for the sum of 1,000. - 



A motion was put on the " expediency of personal inquiry as regards 

 parasites in California, which was followed by another, "That this 

 Conference, having taken into consideration the importance attaching to the 

 proposed undertaking contemplated in the preceding motion, is of opinion 

 that th- Government Entomologist of New South Wales, possessing the 

 special high attainments needed for the inquiry, be delegated to prosf cute the 

 sain*-." 



Nothing further was done in the matter until June, 1907, when, at the 

 ('i.nference of State Premiers, held in Brisbane, the Acting Premier of 

 Victoria, Mr. Swinburne, tabled a motion, u That, in consequence of the in- 

 crease of Fruit-fly and other pest?, with the permission of Xew South 

 Wales, their Entomologist be despatched to America and Europe to inquire 

 into the best methods of dealing with Fruit-flies and other pests ; the value 



