Persistent Link:
http://hdl.handle.net/10150/214522
Title:
Control of Thrips in Seed Onions and Resultant Seed Yields
Author:
Rethwisch, Michael D.; Daily, Bill; Sanderson, David; McDaniel, Charles
Issue Date:
Dec-1992
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Vegetable Report
Abstract:
Four insecticides were evaluated for their effect on onion seed production in Yuma County where two species on thrips (western flower and onion) were present in seed fields. Visual differences between treatments resultant from onion thrips damage was evident within 10 days after treatments were applied at flower opening. Lorsban, Ammo and Capture treatments provided control of onion thrips based on condition of seed heads. Only Ammo and Capture treatments increased seed yield as the Lorsban treatment was thought to repel bees which are needed for pollination. Pyrethroid treatments yielded 40% more than the untreated check. Damage from onion thrips to onion seed in Yuma County is conservatively calculated to currently be at least $1.1 million annually.
Keywords:
Agriculture -- Arizona; Vegetables -- Arizona; Onions -- Arizona; Onions -- Insect control
Series/Report no.:
Series P-93; 370093

Full metadata record

DC FieldValue Language
dc.titleControl of Thrips in Seed Onions and Resultant Seed Yieldsen_US
dc.contributor.authorRethwisch, Michael D.en_US
dc.contributor.authorDaily, Billen_US
dc.contributor.authorSanderson, Daviden_US
dc.contributor.authorMcDaniel, Charlesen_US
dc.date.issued1992-12-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalVegetable Reporten_US
dc.description.abstractFour insecticides were evaluated for their effect on onion seed production in Yuma County where two species on thrips (western flower and onion) were present in seed fields. Visual differences between treatments resultant from onion thrips damage was evident within 10 days after treatments were applied at flower opening. Lorsban, Ammo and Capture treatments provided control of onion thrips based on condition of seed heads. Only Ammo and Capture treatments increased seed yield as the Lorsban treatment was thought to repel bees which are needed for pollination. Pyrethroid treatments yielded 40% more than the untreated check. Damage from onion thrips to onion seed in Yuma County is conservatively calculated to currently be at least $1.1 million annually.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectVegetables -- Arizonaen_US
dc.subjectOnions -- Arizonaen_US
dc.subjectOnions -- Insect controlen_US
dc.identifier.urihttp://hdl.handle.net/10150/214522-
dc.relation.ispartofseriesSeries P-93en_US
dc.relation.ispartofseries370093en_US
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