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| DOI: | 10.1016/j.cropro.2022.105927 |
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| Web URL(s): | https://www.sciencedirect.com/science/article/pii/S0261219422000230
Last checked: 09/07/2022
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https://www.sciencedirect.com/science/article/pii/S0261219422000230/pdfft
Last checked: 09/07/2022
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| Publication Type:
| Refereed |
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| Author(s): | Koppenhöfer, Albrecht M.;
Kostromytska, Olga S.;
Ebssa, Lemma |
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| Author Affiliation: | Department of Entomology, Rutgers University, New Brunswick, NJ |
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| Title: | Species combinations, split applications, and syringing to optimize the efficacy of entomopathogenic nematodes against Agrotis ipsilon (Lepidoptera: Noctuidae) larvae in turfgrass |
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| Source: | Crop Protection. Vol. 155, May 2022, p. 105927 [1-8]. |
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| Publishing Information: | Amsterdam, The Netherlands: Elsevier Science |
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| # of Pages: | 8 |
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| Related Web URL: | https://lsc-pagepro.mydigitalpublication.com/publication/?m=61389&i=758479&p=82&ver=html5
Last checked: 09/07/2022
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Notes: Item is within a single large file; Golf Course Management partial reprint
https://cdn.coverstand.com/61389/758479/29e499bb5ce92b96f62f583c531dbb77f6b6cddb.pdf#page=82
Last checked: 09/07/2022
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Notes: Item is within a single large file; Golf Course Management partial reprint |
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| Keywords: | Author-Supplied Keywords: Black cutworm; Turfgrass; Steinernema carpocapsae; Split applications; Syringing
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| Abstract/Contents: | "Entomopathogenic nematodes, especially Steinernema carpocapsae, can provide good control of the larvae of the black cutworm, Agrotis ipsilon (Hufnagel), a cosmopolitan pest of golf course turfgrass. However, these biocontrol agents do not meet the high expectations for level and consistency of control by golf course managers on the affected high-profile areas. We explored three different approaches to further improve nematode performance. Combinations of S. carpocapsae with two other nematode species, S. feltiae or Heterorhabditis bacteriophora, did not improve control rates compared to S. carpocapsae alone. Syringing (i.e., light irrigation applied twice daily during hot weather) improved S. carpocapsae efficacy by on average 8% and also significantly reduced control variability (mean 78%, range 75-87%) at 109 nematodes per ha. The beneficial effect of syringing on S. carpocapsae performance can in part be ascribed to the improved persistence of the IJs in the syringing regime. The most effective approach to improve S. carpocapsae efficacy was through splitting applications into two applications at half rate applied 3 days apart. This improved efficacy by 13% on average while significantly reducing control variability (mean 84%, range 80-92%) at a rate of 109 nematodes per ha. At the generally recommended rate of 2.5 × 109 S. carpocapsae per ha, split applications and syringing should consistently provide black cutworm control of 90% or higher and could make this approach competitive with synthetic insecticide use." |
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| Language: | English |
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| References: | 33 |
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| Note: | Partial reprint appears in Golf Course Management, 90(9) September 2022, p. 80-84 with variant title "Efficacy of entomopathogenic nematodes against black cutworms and split applications and syringing to optimize their performance"
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Koppenhöfer, A. M., O. S. Kostromytska, and L. Ebssa. 2022. Species combinations, split applications, and syringing to optimize the efficacy of entomopathogenic nematodes against Agrotis ipsilon (Lepidoptera: Noctuidae) larvae in turfgrass. Crop Prot. 155:p. 105927 [1-8]. |
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| DOI: 10.1016/j.cropro.2022.105927 |
| Web URL(s):
https://www.sciencedirect.com/science/article/pii/S0261219422000230
Last checked: 09/07/2022
Requires: HTML5
Access conditions: Item is within a limited-access website
https://www.sciencedirect.com/science/article/pii/S0261219422000230/pdfft
Last checked: 09/07/2022
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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