Skip to main content

Table 5 Mean lethal time (LT) for different concentrations of deltamethrin (Deltapaz)

From: Acute and residual concentration-dependent toxicities of some selected insecticides to adult Bactrocera invadens Drew, Tsuruta and White (Diptera: Tephritidae)

  

Mean ± S. E. lethal time (min)

Age of residues

Concentration (ml L−1)

LT50

LT90

FTP

0.0

> 2880.00 ± 0.00

> 2880.00 ± 0.00

2.6

360.30 ± 24.91

547.33 ± 32.27

3.4

318.33 ± 61.76

462.00 ± 14.76

4.0

153.00 ± 14.53

431.33 ± 14.76

LSD (P < 0.05)

f-value

p

111.20

1464.50

< .001

64.84

3648.17

< .001

3 –DOTP

0.0

> 2880.00 ± 0.00

> 2880.00 ± 0.00

2.6

1291.00 ± 29.20

1691.00 ± 51.00

3.4

669.67 ± 136.01

844.67 ± 93.18

4.0

411.67 ± 243.68

771.67 ± 93.18

LSD (P < 0.05)

f-value

p

457.50

62.36

< .001

233.90

187.39

< .001

6- DOTP

0.0

> 2880.00 ± 0.00

> 2880.00 ± 0.00

2.6

1335.00 ± 33.76

1733.00 ± 210.00

3.4

1277.33 ± 38.76

1459.00 ± 51.10

4.0

790.00 ± 147.31

1110.33 ± 205.00

LSD (P < 0.05)

f-value

p

352.40

135.06

< .001

485.50

26.51

< .001

  1. Legend: FTP freshly treated panels, 3-DOTP 3-day-old-treated panels, 6-DOTP 6-day-old-treated panels