Mar., 1915.] Entomological Work in Ohio. 461 



FORECAST. 



The outlook for Entomological work may be considered as 

 never more favorable and the opportmiities in this line are strik- 

 ingly shown in comparison with conditions a quarter century or 

 more ago. My own recollection covers the development of 

 practically all the methods of insect control, dependent upon the 

 arsenical poison methods and fumigation, of quarantine, inspec- 

 tion and largely those measures which are connected with the rota- 

 tion of crops based upon certain definite conditions in develop- 

 ment or habit which make such control possible. 



Looking ahead it may be pretty confidently predicted that 

 Entomological Science especially that part which is particularly 

 concerned in the control of injurious insects must undergo a great 

 development and that the recognition of Entomological work 

 must increase from year to year. 



Along the lines of development which seem now to be especially 

 promising are those based on studies of insect ecology, insect 

 reactions and migration. While the use of arsenical poisons has 

 reached a high degree of perfection it seems that these should be 

 considered rather as temporary measures and that just as rapidly, 

 as possibly they should be replaced by control measures which do 

 not necessitate the use of compounds which present such a degree 

 of danger in their common use. The possibilities in the develop- 

 ment of control measures based upon the use of repellants, or 

 baits seem to deserve most careful investigation. This appears 

 to me to be one of the fields in which there is opportunity for 

 most valuable research. 



The introduction of insect diseases and insect parasites is 

 another phase which deserves continued investigation. While 

 for some of the forms already tested the results have been dis- 

 couraging, advantage has been shown in a sufficient number of 

 cases to indicate that further study is needed for the determination 

 of those fungi and bacteria which may be amenable to artificial 

 control and especially the continued experiments with the trans- 

 portation or introduction of parasitic insects for the checking of 

 species not otherwise readily controlled. Along the line of adjust- 

 ment of farm and orchard methods there is a large opportunity for 

 more precise determination of the dependence of insects upon cer- 

 tain crop conditions and the adjustment of cultural methods to 

 circumvent insect injury. 



Especially along the line of exclusion of menacing insects of 

 other countries there is opportunity for most careful study, a 

 study which should cover the destructive insects of other portions 

 of our own domain, also of adjacent countries and even those 

 which are so remote as to offer litle direct opportunity for migra- 



