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the large overwintering populations 'to "build up in destructive numbers. Ex- 
ceptionally good yields were obtained in 1934 in the principal beet-groping 
districts, averaging approximately 15.5 tons per acre in the San Joaquin, 
Sacramento, and Salinas Valleys, representing increased yields, as Compared to 
those of 1933. Curly- top caused some damage in the southern end of the 
Salinas Valley, where the acreage was reduced from the plowing up of some of 
the beets severely infected by this disease early in the season. Curly-top 
(western yellow blight) was also prevalent in tomatoes grown in the San 
Joaquin Valley in 1934. In a survey of 1,837 acres of this crop, in eight 
different localities of the valley where the leafhopper was most numerous, 
it was estimated that 'an approximate loss of 16.6 percent was sustained from 
this cause, the estimate being based on the percentage of diseased plants. 
In western Colorado and adjacent portions of eastern Utah, the predicted 
abundance of the leafhopper was corroborated. Curly-top reduced the yield of 
sugar beets approximately 1 ton per acre in 1934 over that of 1933 (8,78 
versus 9,94), e.e compared to a normal yield, which ranges from 12 to 15 tons 
per acre. Part of the reduction in beet tonnage may be attributed to shortage 
of irrigation water, but this was of minor importance as compared to curly- 
top injury. (D» J. Caffrey, Bureau of Entomology and Plant Quarantine, U. S. 
D. A.) 
TOMATO PIH WOBM 
The tomato pin worm ( G no r imp schema lycopersicella Busch:) has become es- 
tablished in several widely separated localities in Eastern United States 
during the last 5 years (see mam). The first record' was of a localized in- 
festation in a greenhouse at Coatesville, Chester County, Pa., in the fall of 
1929. In 1930 tomatoes in nearby fields were severely infested. This infes- 
tation was thought to be eradicated, but again in 1931 the insect was reported 
as attac)d.ng tomatoes in the fields near Coatesville. It was not seen again 
in this district until the fall of 1933, when it was found in a number of 
greenhouses from Avondale, Chester County, to Brandywine Summit, Delaware 
County, Numerous outdoor plantings were also severely infested,- In October 
1933 it was discovered in western Pennsylvania in a greenhouse at Wampum, 
Lawrence County, The grower there said that the insect had also been 
numerous in the field during the summer and that he had first noticed it in 
1932, It was found about this time in a greenhouse at New Castle, Lawrence 
County, The grower there said he had never seen the insect in the field, but 
that it had been in the greenhouse for about 3 years. Another greenhouse in 
New Castle was found to be slightly infested. During the spring of 1932 the 
pin worm caused serious injury to tomatoes at Bradenton, Manatee County, Fla, 
In the spying of 1933 the insect was recorded from a greenhouse in Norfolk, 
Va. It was recorded from a greenhouse near Wilmington,- Del., in January 1934, 
where by June half the plants were ruined. In May 1934 the insect was first 
discovered in Mississippi at G-ulfport. Later in the summer it was found in 
the field* The grower said that he lost two-thirds of his crop in 1933. It 
was also found at Long Beach. In October 1934 it was discovered in a green- 
house at Saint Joseph, Mo.' In addition to the now records for 1934, the 
insect was reported from all the older infested localities. It was very 
abundant in southern California, where so me fields had practically 100 percent 
