60 



CORN AND GRASS. 



effective, would be a most acceptable contribution. But meanwhile 



where the pests are found by inches 

 thick round stacks it certainly would be 

 desirable to shovel them up from time to 

 time, and destroy them in whichever of 

 the many ways which might occur at the 

 time to be most convenient. 



i 



VVh 



I. h 



mm 

 ml 



Of the four following Corn attacks, 

 namely, Hessian Fly, Gout Fly, Wheat- 

 bulb Fly, and Corn Sawfly infestations, 

 which, excepting the first named, are 

 often prevalent locally, and sometimes in 

 many districts to a serious extent, very 

 little was reported. 



Of the Corn Sawfly, Cephas pijuuEns, 

 which injures the Corn stalk by feeding 

 within it, ending by so biting it through 

 in a ring at ground level, that presently 

 the severed stem falls : no injuries were 

 reported. 



Of "Gout Fly," Chlorops tamiopus, 

 mention of severe presence of this infesta- 

 tion in some Barley at Holkham, Norfolk, 

 Avas made by Mr. Davey, on the part of 

 the Earl of Leicester; and also injury to 

 Barley which, from the specimens sent, 

 had been attacked at different stages of 

 growth, was reported from Woodhall, 

 Hertford, by Mr. Noble, on the part of 

 Mr. Abel Smith, This attack is distin- 

 guishable when it takes the plant in the 

 early stages by the growth being checked, 

 bat at the same time the sheathing-leaves 

 round the attacked embryo ear and its 

 stem being so swelled, as shown in the 

 figure, as to give a swollen or " gouty " 

 appearance to the plant (see fig.). When 

 the attack occurs later on, the ear is 

 damaged in amount according to the date 

 of attack. The plant may then gain 

 nearly its full growth, and the ear may 

 possibly free itself wholly from the swollen 



