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Webb,Ralph E

The narcissus bulb fly : how to prevent its damage in home gardens / prepared byRalph E.Webb.- - Washington,D.C. : Agriculture, Research Service U.S. Department of Agriculture , 1977 - 6 p. - - (U.S. Department of Agriculture.Agriculture research service leaflet, no.444) .

Subjects--Topical Terms:
Bulbs-Diseases and pests.
Narcissus bulb fly.

LC Class. No.: SB945 / N3 W4