Research article summary (published 29 Sep 2009):

Efficacy of grain protectants against four psocid species on maize, rice and wheat.

Full Abstract

BACKGROUND: Psocids are emerging pests in stored products, particularly in amylaceous commodities such as grains. Currently, their control is based on the use of fumigants and contact insecticides; however, newer data indicate that psocids are tolerant to insecticides used to control other stored-grain species. This study evaluated the insecticides registered in the USA for use on stored maize, rice and wheat for control of the psocid species Lepinotus reticulatus, Liposcelis entomophila, L. bostrychophila and L. paeta. Mortality of exposed adult females was recorded after 7 and 14 days of exposure, while progeny production was assessed after 30 days of exposure. RESULTS: On wheat and rice, chlorpyriphos-methyl + deltamethrin was generally more effective against exposed parental adults than spinosad or pyrethrin, while pirimiphos-methyl was more effective on maize than spinosad or pyrethrin. In most cases, progeny production was suppressed in the treated grains. Progeny production was consistently lowest on wheat and rice treated with chlorpyriphos-methyl + deltamethrin and maize treated with pirimiphos-methyl. CONCLUSIONS: Chlorpyriphos-methyl + deltamethrin and pirimiphos-methyl were the most effective insecticides for all species and commodities. Conversely, efficacy of spinosad or pyrethrum was highly dependent on the psocid species and commodity. Copyright 2009 by John Wiley & Sons, Ltd.

Author information

Author/s: Athanassiou, Christos G (CG); Arthur, Frank H (FH); Throne, James E (JE);

Affiliation: USDA-ARS Grain Marketing and Production Research Center, 1515 College Avenue, Manhattan, KS 66502, USA. athanas(-atsign-)aua.gr

Journal and publication information

Publication Type: Journal Article

Journal: Pest management science (Pest Manag Sci), published in England. (Language: eng)

Reference: 2009-Oct; vol 65 (issue 10) : pp 1140-6

Dates: Created 2009/09/09; Completed 2009/11/03;

PMID: 19548292, status: MEDLINE (last retrieval date: 11/3/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Animals Female Food Preservation Insecticides - pharmacology Insects - drug effects

Insects - drug effects Male Oryza sativa - parasitology Triticum - parasitology Zea mays - parasitology

Associated Chemicals: Insecticides (0)

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