Alexander and Gallatin, and was occasionally reported in June 
“! e made a visible impression upon the crop of corn. In 
88b, however, no reports of injuries by this pest were received 
although an extremely dry season throughout this region' would 
seem to have favored its multiplication. None of Ihe “armies” of the 
previous year came then under our observation, and the precise 
1 leason for the scarcity of the species this year is unknown. 
Various apple leaf insects have interposed a serious obstacle to 
successful nursery culture, almost completely obstructing, in son e 
localities, the business of growing young apple-trees for the mar¬ 
ket. At Normal, especially, in the grounds of the Home Nursery 
Company, the mischief worked on the susceptible varieties has 
n™ • * v f? dl s c ouragmg character, and has even disposed the 
propnetois to transfer their apple business to a western state. 
As a result of a short series of experiments made with kerosene 
emulsion and with lime, I learned that no liquid or powdery ap- 
phcatmn could reach a sufficient number of the larva?, secluded in 
the rolled and webbed leaves, to make it at all worth using for 
its immediate effects; but a series of field and laboratory exig¬ 
ents made m 1886 has given us the means of controlling these 
misery pests at slight expense,—as detailed in an article on nur¬ 
sery insects m another part of this report. 
n T 1 fiS^ ES +l AN FLY (Cecidomyia destructor) Was locally injurious 
,, 188 d m the counties of Fayette, Effingham, Clay, Lawrence and 
Alexander a few fields being left unharvested because of it in 
® rst mentioned. A careful canvas of the southern part 
if the State made m May and again late in June, failed to dis 
:over any damage except to one field each in Effingham and Law- 
xrpfl cc ! untles - It .® isolated occurrence in these localities gave an 
ome poin?'^ 11 } y ^. de * erml ?, e b y experiment and obsfrvation 
ome points of. interest m its midsummer life history The re 
ults of our investigations, with suggestions of preventive and 
emedial procedure based upon them, are deemed of sufficient im- 
■ortance for especial discussion in a separate article. 
s^k 6 ! < i L °''t R , seed miege (Cecidomyia ler/uminicola), first de- 
cnbed by Lintner as Cecidomyia trifolii, in 1879, (the present 
ame being afterwards substituted for the above,) was first re- 
te^rd n / m ° lS ’ f "foi learn ’ ^ W ■ F ■ Carpenter, of 
dmi’ T f nn/’i m 1882> m a note t0 the “Prairie Farmer,” 
le date of which I have not at hand; but in a recent letter Mr 
arpenter informs me that he first observed the pest in Illinois in 
l 1877 If 7 )'' ,4 S 4T S firSt , obs , erved b y Lintner in New York 
' lt , ls dlffioul . t to say whether this was originally an east- 
n or western species, or whether it may not have secretly pur- 
mntrv fn° N n h' 6 “ti ir® ! or .* omo y ears in various parts of the 
aa i ly ; f d Northern Illinois it was especially injurious in 1886, 
itice of its ravages coming to the office from the Farmers’ Club 
Marengo, m October. 
