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hegafi on April l4 'in Washington; the last -week. of April in Delaware, -Georgia, 
"and 'Indiana; -the .first week 'of : May in Pennsylvaaiia, ;Maryland, Virginia, West 
Virginia, Kentucky, Ohio, Missouri, and^Kansas; and : on May 8 iri New York. ..'In 
New Jersey and Pennsylvania cool, wet weather during June and July partly off-*. 
: set the early -development and made conditions favorable for. contrpl of the 
first brood. In general, the season was favorable for codling moth develops 
ment and warm, dry weather of August-- and September caus'0d'-*a rapid ‘build-up of 
second and third broods. Codling moth injury appeared to be less 'than usual 
in Delaware and Washington, generally not severe in well-sprayed orchards in 
Kansas and Missouri, moderately severe in New Jdrsey, and unusually severe in 
Virginia, Georgia, Arkansas, Ohio, Kentucky, ‘ Indiana, and’ Illinois. A high 
population of larvae went into hibernation quarters Late in the season as a 
result of the favorable weather for buildrup,. . . ... 
PLUM -CUPCULIO. — The mortality of hibernating plum curCulio adults at Port 
Valley, G a . , was unusually low. The ; first-brood infestation was heavier than 
that of last year and the larvae left.- the -: drops earlier. Curculio : development 
was somewhat earlier than normal and peach development somewhat- later. As a 
result, the mideoason varie-ties of .peachy as well as the later ’varieties , were 
subjected to a heavy infestation by larvae : of the second' brood and the hibernat- 
ing population .was heavier than' normal. Heavy damage to late peaches and plums 
occurred in Mississippi, the second- generation was unusually abundant and the 
infestation in Elbertas was high, in Kentucky, . and in Ohio the infestation was 
unusually abundant -in peach and' also occurred, in plums* ' 
MEXICAN FRUITFLY . —The annual influx of adults of the Mexican fruitfly 
( Anastrepha ludens Lo‘ew) appeared in the citrus groves of the Rio Grande Valley, 
as usual, during the' late fall and early winter of 194o r following the dispersal 
from its native host, Sargentia greggij , through northeastern Mexico of the 
largest population on record. The first larval infestation of the 1940-4l fruit 
season was found on November 15, 1940, but no further fruit infestation occurred 
until February .12, 194l. After March 1, 194l, fruit infestations were disclosed 
in all districts except at Laredo and in the Winter Garden area. The largest 
number of adults and larval infestations occurred in the western end of the 
lower Rio Grande citrus area, as -has been noted in previous years. 
The season was apparently below normal with respect to the number of adults 
■ trapped and -larval infestations found in the groves* A total of 979 flies was 
trapped during, the 1940-4 1 season, as compared to 6,157 during the 1939"4o 
season and. 13,687 during the -1938-39: season. Owing to unfavorable weather con* 
ditions, the. Harvesting season- for grapefruit and oranges was. extended to May 
31 , 1941 , but despite this extension larval infestations were found on only 
552 properties during tHe 'season. During the 1939~40 season. 5&2 larval in- 
festations were disclosed, and 2,l4l were found during the 193& 39 sea«on Q The 
host-free period began on June 1, 19.41, with the tree-to-tree clean-up. and the 
population, of adults dropped immediately. No adul.ts have been trapped since 
August when 3 flies were captured at- Laredo. There was no further spread of 
the Mexican fruitfly during the season. 
The 1941-42 fruit season began, with apparently a complete absence of flies 
from the groves. Eor several years adults have shown up-in the groves. in 
November and December, but in November and December 1941 no flies were trapped 
