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PLANT qpARANTIEE A27D CONTROL ADMINISTRATION 
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NOi'cjs abstracted from' "News Letter", June, 1931. 
(Hot for publication) 
MEXICAN FRUIT '.TOE.' ( Anastrepha Widens Loew) 
The outstanding development on the Mexican fruit worn project during 
the month of April was the finding of infestations in locally grown fruit 
in Matanoros and in fru.it produced in a grove near Mission, Tex. 
The Matanoros infestation was discovered April 9, in sour oranges 
produced in the patio of a house at 3th and Herrera Streets. The fruit 
produced on these premises was heavily infested during the season 1929- 
30. Although traps have been maintained in these trees continuously 
since October, 1929, no adults have been caught since August 20, 1930. 
Upon finding this infestation a thorough examination was made of all 
fruit growing in Matanoros. This inspection showed no indication of 
other infestations. However, on the 15th and 16th adults were caught 
in traps located at a distance, of 11 and 5 blocks, respectively, from 
the infested premises at 8th and Herrera Streets, one adult being cap- 
tured in each of the two traps. Immediately upon the determination of 
the infestation and in cooperation with the Mexican inspector at Matanoros, 
the work of stripping all citrus fruits from the trees was started. Very 
little opposition to this work on the part of the citizens of Matanoros 
has been encountered. 
On April 22, a report was received of the finding of three maggots 
in a grapefruit from a grove northeast of Mission. Upon checking the 
grove from which the fruit originated some two or three bushels of 
fruit were found stored in a box filled with sand. An inspection of 
this fruit resulted in the finding of one larva, and on screening the 
sand in which the fruit had been stored, five pupae were found. This 
fruit and the sand in which it had been stored were immediately treated 
and buried, as v/ere some nine boxes which were being held in storage* 
within about one-naif mile of the point of infestation. A thorough 
examination of all other fruit held in storage in the valley snowed no 
indications of further infestations. 
3PINK BOLL WORM ( Pect inophora r-ossypiella Saund. ) 
In order to determine the activity of the pink boll worm in the 
Salt River Valley, Ariz., two light traps and two flight screens were 
used, but no moths have been taken. The inspection of cotton squares, 
however, yielded 5 larvae of the pink boll worm on May 5. The field 
where the specimens were taken was rather heavily infested last year, 
and the infested squares were from stub cotton. Preparations are now 
being made to destroy the cotton in that field. Three additional worms 
were found in an adjoining section on May 6. These findings are the 
first in that area in the 1931 crop of cotton. 
