The destructive pea louse was fouud 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 Em.jnisa 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 Held 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. vSpecimens both from the pea and the 

 red clover were determined for me by Mr. Pergande, through Dr. 

 Howard, as Nectarojphora destructor. This coincides with a suspicion 

 that I have had since the pest first came to notice in Maryland and 

 through the Atlantic Coast states, namely, tiitit the same thing occurred 

 here in Ohio upon the red clover. 



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 aphis 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 in a 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 Myodocha serripes^ had been sent by the owner of 

 the premises as the probable depredator, Mr. Mall}^ 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 especialh^ upon the pulp of the berry, but upon the seeds, 

 the hulls of which were invariably thickl}^ strewn upon the ground or 

 fallen leaves underneath the injured T)erries. 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 j^ear, 

 but June 11th of the present year 1 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 



