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The destructive pea louse was found in various parts of the State 
during October, 1899. On the grounds of the experiment station at 
Wooster it was destroyed in myriads by the fungus Ampusa aphidis, 
as determined for me by Dr. Thaxter. Owing to the destruction that 
this insect has caused along the Atlantic coast it was watched for with 
a great deal of interest at the beginning of the present season. A- 
small field was sown with oats and the Canada field pea during April, 
but no specimens of the insect could be found upon the peas until May 
30, when a single winged female was found with a number of young 
upon the vines. At the same time, what appeared to be the same 
insect was found in greater abundance upon the red clover, growing 
also on the station grounds. Specimens both from the pea and the 
red clover were determined for me by Mr. Pergande, through Dr. 
Howard, as Wectarophora destructor. This coincides with a suspicion 
that I have had since the pest first came to notice in Maryland and 
thr ough the Atlantic Coast states, namely, that the same thing occurred 
here in Ohio upon the red aloree 
Last fall, however, we tried to colonize individuals taken from the 
Canada field pea and placed upon red clover, but failed in the under- 
taking. Although this was not conclusive evidence, nevertheless it 
seemed to some extent to discredit the idea that the he on the clover 
and the one on the pea are the same; besides, I had fresh in my 
mind the experience with the tobacco thrip, as previously stated. 
The first report of serious injuries from this pest came from a firm 
of growers and packers of vegetables, Messrs. Sears & Nichols, of 
Chillicothe, who, under date of June 12, report attacks from the 
insect and severe damage ina few spots in their fields of growing peas. 
On the station grounds the louse is being destroyed in considerable 
numbers by a species of Praon. 
On the 17th of June, 1898, there came a complaint from Flushing, Bel- 
mont County, of serious injury to the ripening strawberries. Mr. 
Mally, my assistant at that time, was sent to investigate the matter. 
Specimens of the bug J/yodocha serripes, had been sent by the owner of 
the premises as the probable depredator. Mr. Mally was not able to 
solve the problem, but saw at once that the injury must have been due to 
the attacks of an insect with a biting mouth, as it did not appear to 
depredate especially upon the pulp of the berry, but upon the seeds, 
the hulls of which were invariably thickly strewn upon the ground or 
fallen leaves underneath the injured berries. There was also a similar 
complaint from Greene County, and this was also accompanied by speci- 
mens of the same insect. Nothing was heard of this trouble last year, 
but June 11th of the present year I received a telegram from the 
owner of the premises at Flushing, to the effect that the insects were 
again at work upon his strawberries. A personal visit to the locality 
very soon developed the fact that the cause of the damage, which was 
