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dc.contributor.authorPortman, Scott L.
dc.contributor.authorKrishnankutty, Sindhu M.
dc.contributor.authorReddy, Gadi V. P.
dc.date.accessioned2017-05-12T18:39:53Z
dc.date.available2017-05-12T18:39:53Z
dc.date.issued2016-12
dc.identifier.citationPortman, Scott L, Sindhu M Krishnankutty, and Gadi V P Reddy. "Entomopathogenic Nematodes Combined with Adjuvants Presents a New Potential Biological Control Method for Managing the Wheat Stem Sawfly, Cephus cinctus (Hymenoptera: Cephidae)." PloS One 11, no. 12 (December 2016). DOI:https://dx.doi.org/10.1371/journal.pone.0169022 .en_US
dc.identifier.issn1932-6203
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/12820
dc.description.abstractThe wheat stem sawfly, (Cephus cinctus Norton) Hymenoptera: Cephidae, has been a major pest of winter wheat and barley in the northern Great Plains for more than 100 years. The insect\'s cryptic nature and lack of safe chemical control options make the wheat stem sawfly (WSS) difficult to manage; thus, biological control offers the best hope for sustainable management of WSS. Entomopathogenic nematodes (EPNs) have been used successfully against other above-ground insect pests, and adding adjuvants to sprays containing EPNs has been shown to improve their effectiveness. We tested the hypothesis that adding chemical adjuvants to sprays containing EPNs will increase the ability of EPNs to enter wheat stems and kill diapausing WSS larvae. This is the first study to test the ability of EPNs to infect the WSS, C. cinctus, and test EPNs combined with adjuvants against C. cinctus in both the laboratory and the field. Infection assays showed that three different species of EPNs caused 60-100% mortality to WSS larvae. Adding Penterra, Silwet L-77, Sunspray 11N, or Syl-Tac to solutions containing EPNs resulted in higher WSS mortality than solutions made with water alone. Field tests showed that sprays containing S. feltiae added to 0.1% Penterra increased WSS mortality up to 29.1%. These results indicate a novel control method for WSS, and represent a significant advancement in the biological control of this persistent insect pest.en_US
dc.language.isoen_USen_US
dc.rightshttp://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleEntomopathogenic Nematodes Combined with Adjuvants Presents a New Potential Biological Control Method for Managing the Wheat Stem Sawfly, Cephus cinctus (Hymenoptera: Cephidae)en_US
dc.typeArticleen_US
mus.citation.issue12en_US
mus.citation.journaltitlePloS Oneen_US
mus.citation.volume11en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1371/journal.pone.0169022en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentResearch Centers.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage10en_US


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