-340 - 
the Puyallup Valley, Wash. Bather heavy infestations were oh served early in 
the season in the cannery-pea sections of Michigan and ffisctfasin* High temper- 
atures, during the latter half of May reduced the infestation to negligible 
numbers in these States. Iir.New York State a very heavy infestation occurred' 
on \o.te peas and many fields were ployed under. An unusual -outbreak also 
occurred in northern Idaho: and eastern Washington, Particularly on late " 
varieties of peas. . • - 
••■•.." ••.' ? ... :•. 
B3A MOTH ■„ . 
'■•■' ■ - ■ 
The pea noth, {li as.p.eyrpsia nigricana Steph ,) v.as reported as causing con- 
siderable loss to pea growers in Whatcom and Skagit Counties, Wash*, during 
the summer. The insect was also reported from British Columbia about the same 
time. These constitute the first records of occurrence in the western part of 
North America. The first record of appearance in the United States was made 
in 1908 in Charlevoix County, Mich, Since that tine it has "been reported from 
Wisconsin, Indiana, and New Yorl:, It has been known in Canada since 1393 and 
occurs from Manitoba eastward to llova Scotia; 
BSHT LEAjmOH-ik- 
; •• During 1934. the investigations on the beet leaf ho~per vere continued in 
Idaho, Utah, California, and Colorado. The curly-top disease transmitted by 
this pest caused severe injury to the sugar beet crop in all of the inter- 
mountain regions. Early in the season the ^ro sheets were for low leafhopper 
populations in the Idaho beet-growing area. However , unexpected numbers 
migrated into the cultivated area, resulting in the abandonment of a consider- 
able portion of the acreage that had been planted. This influx of the leaf- 
hopper was not due to a development of the pest in areas whleh had heretofore 
been considered as important in contributing to the leafho~v-'Or populations in 
the beet-growing areas, but was attributable to a migration from an unknown 
distant breeding area (see map). The abandonment of acreage, -oius shortage of 
irrigation water, caused an estimated redaction of nearly 95 percent in the 
tonnage of sugar beets produced in Idaho during 1934,' as compared to 1933 
(30,000 versus 353,000). Similar losses were sustained by the bean industry, 
it being estimated that crop reduction from- the beet leefhop per outbreak in 
two representative districts, Twin Jails and Tiler, amounted to from 30 to 50 
percent .on contract beans, with significant losses to commercial white beans 
(Great Northern). 
In Utah the leafhopper was very abundant, corroborating the early season 
predictions based on population studies on the wild host plants' in the desert 
areas. In general, the bert crop of Utah was very seriously damaged by curly- 
top, as evidenced by the estimrted 1934 production of 325,000 tons, as compared 
to approximately 912,000 tons in 1933, the reduction being caused principally 
by the disease. These losses were sustained in practically all of the beet- 
growing districts of the State, with the exception of the Cache Valley. 
In California the pro gran for the spraying and elimination of the wild 
host Plants which was conducted in the San Joaquin Valley apparently reduced 
leafhopper damage, as the preceding mild, dry winter would have permitted 
