GAEDEN" FLEA-HOPPER IN ALFALFA. 5 



nymphal stages. Mr. J. R. Stewart, of Gray, Ga., under the date of 

 May 9, 1915, reported severe injury by the garden flea-hopper to a 

 field of alfalfa that had yielded fine crops for two years. 



Mr. E. H. Gibson on May 26, 1916, reported it as being injurious to 

 alfalfa at Charleston, Mo. 



RECENT INJURIES. 



During the year 1915 serious attacks by Halticus citri on cereal and 

 forage crops in the vSouth Atlantic States, and especially in Georgia, 



Fig. 2.— Alfalfa showing the eflfect of injury by the garden flea-hopper on the leaves. 



dhected the attention of the Bureau of Entomology to the need of 

 investigational work with respect to this insect. The late Prof. F. M. 

 Webster, entomologist in charge of cereal and forage insect investi- 

 gations, immediately instituted researches for the purpose of deter- 

 mining suitable control measures. 



The Avriter began his invest ii:;ations at Gray, Ga., May 26, 1915. 

 In walking through the alfalfa Holds at this place infestation by the 

 garden flea-hopper was found exceedingly abundant, the insect being 

 present in all stages of its life cycle; the distribution of the pest in 



