RASPBERRY SAvTFLT 
-359-- 
Thro-nghout the raspberiy section extending from New York into 
Ontario the raspburij- sawfly ( Monophadnoides ruhi Harr. ) did very- 
considerable dacage this year. 
PEA APHID 
"The infestation of the pea aphid ( llllr.oia pisi Zalt.) d\iring 1928 
on canning peas in Wisconsin 'Jas about normal. The peak of infestation 
(on July 7) was reached more quickly than in any of the past five years 
and in nvimber of aphid s in the fields was second only to the peak of 19Z 
Miich showed 1,860 aphids per 5 svreeps of a collecting net as compared 
with 1,517 collected this year. After the peak was reached, the in- 
IsE'tation dropped more quickly than usual* 
"The weather for this season was unusioal.^lt; was cool and rainy 
with much cloudy aeather during May and June/ a few warm periods of one 
day's duration. A definite change occurred on July 3 tc warm, generally 
clear weather with cocl nights, continuing with a few short exceptions 
throughout July. During Kay, June, and July it rained on 41 days with a 
total rainfall of 10.36 inches. Of this precipitation, 6,26 inches fell 
during the 16-day period from June 18 to July 3 inclusive. Only 0,23 inch 
fell in July after the third day. -The definite change in weather on July 
3 appeared to check the growth of peas and hasten maturity, which resulted 
in early and uneven maturity and general poor quality. The excellent 
growth eondltion of the vines in late June appeared to accelerate aphid 
reproduction remarkably. Then reproduction almost ceased and aphids be- 
gan to disappear rapidly." (j, E, Dudley, Jr., Bureau of Entomology, 
s*'d. a.) 
Early in the season the pea aphid destroyed considerable ^falfa in 
the West Central, North Central, and Great Basin areas, 
COLORADO POTATO BEETLE 
The Colorado potato beetle ( Leptinotarsa decemlineata Say) was 
reported very early in tiie season as being unusually abundant in the Gulf 
region at Biniiingham, Ala. »Picayaiie, Lucedale, and Tupelo, Miss., and 
around Jacksonville, ?la.fand later in the season there mere indications 
that it would be extremely destractive in the Virginia trucking sections. 
Throughout the country'- as a whole conditions were not \inusual. 
KARLEQUIN BUG 
The harlequin bug ( .Murgantia histrionica Haha) was less numerous 
throughout the greater part of its range than during 1927. However, consider- 
able damage was done in the early tnacking sections of Alabama and 
Mississippi, and in North Carolina conditions seemed to be worse than 
usual. This insect appeared this year to be much more numerous in Alexandria 
County, Virginia, than it has been in many years. 
