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QNIO NS 
ONION THRIPS (Thrips tabaci L e ) 
Indiana -J. J. Davis (June 24); Onion thrips reported as especially abundant 
on onion at Fremont June 16 and Angola June 19. 
Illinois W, P. Flint (June 18): C* Co Compton reports that the unusual 
weather conditions for the first part of June have brought out the 
onion thrips two or three weeks earlier than usual. Quite severe 
damage is now "being done in part of Cook County. 
ONION MAGGOT ( Hylsmyia antiqua Meig. ) 
New York W. D» Mills (June 6): Eggs were found in considerable numbers in 
a planting or two in Oswego County, while in another the maggots 
had hatched,, 
Wisconsin E« L Chambers (June 10): She onion maggot has been a serious pest 
in Barron, Washburn, Racine, and Shawano Counties, according to our 
reports. 
J. 3« Dudley, 2r. (June 20): Infestation appears to vary more than 
usual from field to field in Racine and Kenosha Counties. Appar- 
ently there is less than last year, particularly on the cull onions 
used as a trap crop. It may be interesting to note that adult 
flies are still emerging from several hundred puparia placed in 
ground last fall in a large hibernation cage. Something over 300 
puparia have just been sifted fz>om the ground. All appear alive 
and it seems likely that adults will continue to emerge for two or 
three weeks. Damage will probably run from very slight (less 
than 10 per cent) to 20 or 30 per cent in some fields'. Ho' natural 
enemies observed. 
Illinois W. P. Flint (June 18): C, C» Compton reports the onion maggot 
as causing heavy losses to onion set growers in the Chicago district. 
The injury is not quite as severe as in 1924 in the southern part 
of Cook County, but more severe in the north. Many growers are 
using the oil Soxieaux spray for the control of this insect. 
Oregon Don C» Mote (May 20): A 4 per cent damage represents only the 
percentage of small onion plants that have been destroyed up to this 
date. The damage to the crop can not be determined until later. 
Eggs, maggots, andr-adults present. 
SWEET POTATO 
YELLOW- STHIPED ARMYWORM. (Prodenia ornithoaalli C-uen. ) 
Florida J. R # Watson (June 16): The sweet potato caterpillar appeared in- 
destructive numbers in some fields early in June, some weeks before 
its usual date of appearance. 
