-5b8- 
. caused some damage in Washington. 
ORIENTAL FRUIT MOTH 
The oriental fruit moth caused about the usual amount of damage genera lly. 
Quite severe injury to fruit was reported from Connecticut, New York, New Jersi 
and Missouri. The insect was reported from Texas several times during the 
season on peach and plum. This is the first time the insect has been reported 
as injurious in the State. It was reported as having been collected there sev- 
eral years ago. 
BEET LEAFHOPPER 
The beet leafhopper populations in the fall of 1939 i n the breeding area s 
of southern Idaho, northern Utah, and California were the lowest for several 
years. Winter survival in these areas was also low; however, in the spring 
ideal weather conditions in southern Idaho was responsible for a heavy repro- 
duction of the insect and luxuriant growth of its food plants. Surveys of 
commercial beanfields in July showed that curly-top injury to garden varieties 
grown for seed ranged from 1.75 to 44.0 percent and to the Great Northerns fro- 
0.25 to 8.5 percent. A survey of the curly-top infection in beetfields of 
Idaho and eastern Oregon was made in Julv and August 1940. The date, showed th: 
99.2, 84.4, and 26.2 percent of the beets in the western Id^ho-eastern Oregon, 
south-central Idaho, and eastern Idaho areas, respectively, were infected with 
curly top. There was also a reduction in the average grade of curly-top 
severity from 2,5 for the western Idaho-eastern Oregon to 1.6 for the south- 
central Idaho and 1.3 for eastern Idaho areas. A comparison of the average 
curly-top infection in all districts shows that 68.9, 37»7, and 75«7 percent 
of the plants were infected during the seasons of 1938, 1939, and 1940, respec- 
tively, In northern Utah, sugar beets and tomatoes were subjected to a great 
influx of long-distance migrant leaf hoppers in April from southern Idaho, 
southern Nevada, and northeastern Arizona, resulting in five times as much 
damage as occurred in 1939* 
In California the spring brood of leafhoppers remained in the foothills 
instead of moving out in the valley, as usual, and an enormous -second brood 
matured in May; consequently, the heaviest migration since studies were starts- 
in 1930 occurred. The migrants reached the Sacramento Valley from May 10 to 1 
but fortunately moved up the east side of the valley, missing the principal be 
areas. Damage to sugar beets, except in small areas, was negligible. There 
was considerable damage to the tomato crop in the northern part of the San 
Joaquin Valley. In the early tomato district south of Merced, where the 
tomatoes are planted closely and staked, and were about ready to produce at th 
timeof the heavy migration, damage was at least 10 percent. In the canning- 
tomato area from Merced to Stockton, counts showed about 30 percent damage, 
although one or two fields that were carefully watched lost 60 percent of the 
plants. In the Sacramento Valley most of the tomatoes were set after migra- 
tion. Damage, chiefly from the first summer brood., was about 5 percent. 
In the Mesilla Valley, N. Mex. , and the Salt River Valley of Arizona, 
where beets are grown for seed, the beet leafhopper infests the fields in the 
fall, but the damage is not fully evident until the following April, The 
