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Utah George F. Knowlton (May c): Aphis porai DeG . are very numerous in 
many apple orchards in Cache Valley-, notwithstanding the cold 
weather on April 25 and 26, which destroyed many nymphs , aid shrivei 
ed up a large percentage of the eggs. 
APPLE-GROT APHID (R hopalosiphum prunj f oliae Fitch) 
Nev, York G. E. P. Fervey (April 19): They have been hatching; for the past 
week in Dutchess County and are now clustered on the opening buds. 
Ohio H.' A. Gossard (May 20 ) : Aphis a ven ae hatched very plentifully 
around Wooster out was not abnormally plentiful and has caused no 
marked damage. The species is still present on apple but migrants 
are now developing, a few having acquired wings, and this species 
will probably net increase in numbers upon apple. 
T. h. Parks (May 20 ) : This is the only species cf aphid that care 
be found on apple in central Ohio. It is not very abundant, /phi! 
pomi' and Aph i s sorbi are very scarce. 
ROSY APPLE APHID (/ nuraohis ros e u s Baker) 
New York C. R. Crosby and assistants:- In Dutchess County this insect was 
present in appreciable numbers. (April 26): Plenty of them were 
observed in Columbia County. (May 3): Abundant at Sodus on this 
date, while in Ulster County on May 10 they were observed in the 
curling leaves at this date. 
Delaware J. F. Adams "(May 15): Numerous at several places in South Delawar 
Maryland E. N« Cory (May 14): Generally delayed dormant sprays and the 
cluster sprays with nicotine have reduced the number of aphids in 
most orchards. However, they are gradually increasing and may be 
a serious factor. Distribution see ri s general. 
Ohio H. A. Gossard (May 20) : The rosy apple aphid is scarce about 
wooster but it is quite plentiful in southern Ohio at Gallipolis 
and through that section. 
Illinois W. P. Flint: This insect : ; s not nearly as abundant as in 1923. 
Thus far, no cases have been found or reported where the infestation 
was sufiiciently heavy to cause any commercial damage. 
WOOLLY APPLE APHID f Eriosom a lanigerum Hausman) 
Utah George F. Knowlton (May 6): Eri rsoma l an igerum are again numerous 
enough tc do damage in some orchards in this county, adults and 
half -grown nymphs being found in large numbers in pieces where 
the Dark has oeen damage;". 
