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Table 2 Daily mortality of T. absoluta larvae (mean ± SD) in leaf galleries treated with local and exotics EPNs using the concentration of 500 IJs/ml

From: Potential of entomopathogenic nematode isolates from Rwanda to control the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

EPN isolates/strains T. absoluta larval mortality (%)
24 h 48 h 72 h 96 h
Bioassay 1
St. sp. RW14-M-C2a-3 80.0(± 10.0) a 96.7(± 5.8) a 100(± 0.0) a 100 (± 00.) a
St. sp. RW14-M-C2b-1 83.3 (± 15.3) a 92.5(± 6.6) a 100 (± 0.0) a 100 (± 0.0) a
St. carp. RW14-G-R3a-2 96.7(± 5.8) a 95.8 (± 7.2) a 100 (± 0.0) a 100 (± 0.0) a
Het. bact. RW14-N-C4a 53.3 (± 5.8) b 96.7 (± 5.8) a 100 (± 0.0) a 100 (± 0.0) a
St. carp. All 6.7 (± 5.8) c 40.0 (± 10.0) b 84.7 (± 6.1) b 95.8 (± 7.2) a
Het. bact. H06 26.7 (± 5.8) c 85.8 (± 5.2) a 100 (± 0.0) a 100 (± 0.0) a
CV 15.26 13.21 2.21 2.97
Bioassay 2
St. sp. RW14-M-C2a-3 83.3 (± 20.8) ab 100 (± 0.0) a 100 (± 0.0) a 100 (± 0.0) a
St. sp. RW14-M-C2b-1 96.7 (± 5.8) a 100 (± 0.0) a 100 (± 0.0) a 100 (± 0.0) a
St. carp. RW14-G-R3a-2 90.0 (± 10.8) a 100 (± 00.) a 100 (± 0.0) a 100 (± 0.0) a
Het. bact.RW14-N-C4a 53.3 (± 11.5) bc 100 (± 0) a 100 (± 0) a 100 (± 0) a
St. carp. All 3.3 (± 5.8) d 35.9 (± 7.6) b 88.4 (± 11.5) a 100 (± 0.0) a
Het. bact. H06 23.3 (± 15.3) dc 39.2 (± 5.6) b 92.6 (± 6.4) a 100 (± 0.0) a
CV 21.76 3.13 8.82
Bioassay 3
St. sp. RW14-M-C2a-3 96.7(± 5.8) a 100 (± 0.0) a 100 (± 0.0) a 100 (± 0.0) a
St. sp. RW14-M-C2b-1 96.7(± 5.8) a 100 (± 0.0) a 100 (± 0.0) a 100 (± 0.0) a
St. carp. RW14-G-R3a-2 70.0(± 0.0) b 96.3(± 10.9) ab 100 (± 0) a 100 (± 0.0) a
Het. bact.RW14-N-C4a 46.7 (±5.8) c 85.6 (± 6.8) b 96.3(± 6.4) ab 100 (± 0.0) a
St. carp. All 0.0 (±0.0) e 17.4(± 10.9) c 84.7 (± 6.1) b 100 (± 0).0 a
Het. bact. H06 26.7(±5.8) d 92.6(± 6.4) ab 95.8(± 7.2) ab 100 (± 0.0) a
CV 8.40 7.82 4.84
  1. St =Steinernema; Het = heterorhaditis; St carp = steinernema carpocapsae; Het bact = Heterorhabditis bacteriophora; CV = coefficient of variatiation; mean followed by different letters in the same column within the same bioassay are significantly different according to Tukey’s test (P < 0.05)