ISSN:
1573-1561
Keywords:
Onion fly
;
Hylemya antiqua
;
seedcorn fly
;
Hylemya platura
;
Diptera
;
Anthomyiidae
;
yeast hydrolysates
;
brewers' yeast
;
food attractants
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract The attractancy of enzymatic yeast hydrolysate, a corn hydrolysate, brewers' yeast, honey, ammonia,n-dipropyl disulfide, and several combinations of these treatments was tested in an onion field containing onion flies,Hylemya antiqua (Meigen) and seedcorn flies,H. platura (Meigen). Enzymatic yeast hydrolysate (concentrated powder) proved to be highly attractive to both fly species; females were more responsive than males. Brewers' yeast and corn hydrolysate were intermediately attractive, while all other treatments were only slightly or not at all attractive. Although no steps were taken to prolong release of volatiles, some of the nutritious materials remained highly attractive even after 11 days. The yeast products may, at certain times, be even more attractive than specific host volatiles. However, their activity was not constant over time and may be influenced by the stage of reproductive development of female flies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00987703
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