Ohio 
Indiana 
Ohio 
_ 31 3 
— i/lw — 
of poisons to control the "beetles. This appears to have been 
sometfoat local, and so far as detected damage "by the potato 
beetleshas not "been unusually excessive over most of Ohio 
territory. 
POTATO APHID ( Illinoia solanifolil Ashm. ) 
H« A* Gossard (August 2k) : The green and pink potato aphid becamec 
very numerous on three oT our experimental plots of potatoes at 
Wooster 3 out were eventually cleaned -up by ten different species 
of ladybird beetles which were observed working on them. It was 
ncted as doing considerable damage to tomatoes about Toledo 
August 1. 
GREEIJ FSaCH APHID ( Mygus -persicae Sulz.) 
C* R» Cleveland (August 21): Potatoes at various points in northern 
ar.d central Indiana ordinarily show infestation by this species each 
year. Although it has not been as abundant as usual thus far during 
the present season, some colonies are beginning to appear in con- 
spicuous numbers at the present time. No direct injury is yet 
apparent but in view of the known ability of this specie s to carry 
potato disease, there will undoubtedly ba a sufficient infestation 
to have sY«ne influence on disease transmission, 
LEAFHOPPER ( Eirooasca fabae Harr . ) 
T. II. Parks (August 19): The 'potato leafhopper continues to be a 
serious p^ 
potatoes* 
st of potatoes, Hopperburn is now prevalent on unsprayed 
Indiana 
Wisconsin 
Ohio 
H, A, Gossard (August 2U): There is a h> me what general infestation 
of the potato or apple loaf hopper and at Craighton these finished 
up what the beetles left, causing great shrinkage to the crop. 
There has been considerable shrinkage from leafhopper damage over 
most of northern Ohio, 
C IU Cleveland (August 21): Smpoasca fabae Harr, has continued to 
increase on potatoes at Lafayette, Early potatoes have shown very 
severe injury and in many cases the vines are already dead owing 
at least partly to attack by this species. Hoppers are now ahundarfc 
on ?,ato potatoes and the injury is beginning to appear on these 
plants cv^iisTjicuouslJr. 
E. L, Chambers (August 20) : There has been quite a serious loss 
to potatoes from hopperburn during the past two weeks. The in- 
festation is much worse than the past two years. All blocks of 
I le in the nurseries and dahlias in the majority of gardens 
show. marked injury from hopperburn, 
STALK BORER (P a-painema nebris nltela Guen. ) 
K. A. Gossard (August 2k): The common stalk borer has been 
numerously reported over most cf northern Ohio during the months of 
June, July, and August, It was particularly noted as damaging 
