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Survival and Infectivity of Entomopathogenic Nematodes Formulated in Sodium Alginate Beads Cover

Survival and Infectivity of Entomopathogenic Nematodes Formulated in Sodium Alginate Beads

Open Access
|Oct 2018

Figures & Tables

Survival over time of entomopathogenic nematodes (EPNs) formulated in sodium alginate beads (ABs) in relation to the pre-conditioning (Prec) of IJs or ABs coating (C) or both (Prec-C), stored at 23 ± 3°C_ Steinernema glaseri (Sg), Steinernema carpocapsae (Sc), and Heterorhabditis bacteriophora (Hb)_

Survival rate after formulation (%)
FactorTreatment7 d14 d21 d28 d35 dMSt (days ± SE)
EPN Sg 1500008.05 ± 0.079
Sc 797958.858.8026.07 ± 0.389
Hb 93.593.551.40022.00 ± 0.209
Prec Sg-Prec39.639.622.50013.21 ± 0.262
Sc-Prec53.3239.80013.02 ± 0.218
Hb-Prec69.369.37.60014.69 ± 0.182
C Sg-C2000008.40 ± 0.088
Sc-C797941.641.6026.96 ± 0.355
Hb-C10010030.521.7022.22 ± 0.262
Prec-C Sg-Prec-C4000009.80 ± 0.108
Sc-Prec-C74.467.831.531.51022.06 ± 0.372
Hb-Prec-C92.4000013.46 ± 0.058

Results of the statistical analysis over time of infectivity (IN) against Galleria mellonella by EPNs from sodium ABs, in relation to the pre-conditioning (Prec) of IJs or ABs coating (C) or both (Prec-C)_ Steinernema glaseri (Sg), Steinernema carpocapsae (Sc), and Heterorhabditis bacteriophora (Hb)_

Infectivity after formulation (%)a
FactorTreatment7 d14 d21 d28 d35 dMean IN (% ± SE) F P
EPN Sg 15b0b0b0b0b3 ± 2.19bc6.280.023
Sc 100a100a100a100a0a80 ± 9.18a
Hb 90a100a0b0b0a38 ± 10.8ac
Prec Sg-Prec75a70a0a0a0a29 ± 9.5bc5.790.006
Sc-Prec100a100a55a0a0a51 ± 11.3a
Hb-Prec100a90a0a0a0a38 ± 10.8ac
C Sg-C35b0b0b0b0a7 ± 3.3b219.59<0.001
Sc-C100a100a100a80a0a76 ± 9.58a
Hb-C100a100a90a95a0a77 ± 9a
Prec-C Sg-Prec-C40b10b0b00b0b10 ± 5.7b160.54<0.001
Sc-Prec-C100a100a90a90a100a96 ± 2.7a
Hb-Prec-C90a10b0b0b0b20 ± 8.46b
DOI: https://doi.org/10.21307/jofnem-2018-037 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Page range: 273 - 280
Published on: Oct 17, 2018
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2018 Jaime Ruiz-Vega, Carlos I. Cortés-Martínez, Cipriano García-Gutiérrez, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.