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Table 5 Insecticidal effect of M. longifolia on biological parameters of A. craccivora (mean ± SE)

From: Insecticidal and repellent effects of Mentha longifolia L. essential oil against Aphis craccivora Koch (Hemiptera: Aphididae)

Biological parameters

Concentration (µl/ml)

Control

0.5 µl/ml

1 µl/ml

2 µl/ml

4 µl/ml

8 µl/ml

Nymph 1 (day)

1.333 ± 0.479A

1.566 ± 0.504A

1.6 ± 0.498A

1.633 ± 0.490A

1.433 ± 0.504A

1.433 ± 0.678A

Nymph 2 (day)

1.733 ± 0.449A

1.533 ± 0.507AB

1,566 ± 0.504AB

1.633 ± 0.490AB

1.433 ± 0.504AB

1.266 ± 0.639B

Nymph 3 (day)

2.233 ± 0.727A

1.966 ± 0.668AB

1.533 ± 0.507AB

1.566 ± 0.504B

1.766 ± 0.817B

1.633 ± 0.850B

Nymph 4 (day)

3.133 ± 0.819A

2.633 ± 0.808A

2.1 ± 0.607B

1.666 ± 0.606BC

1.566 ± 0.568C

1.233 ± 0.727C

Total immature (day)

8.433 ± 1.006A

7.7 ± 1.235AB

6.8 ± 1.063BC

6.466 ± 1.041CD

6.2 ± 1.323CD

5.566 ± 2.176C

Adult prereproductive period (day)

3 ± 0.982A

3.2 ± 0.805AB

2.566 ± 0.727B

1.8 ± 0.886C

1.533 ± 0.899C

0.633 ± 0.668D

Reproductive period (day)

16.167 ± 1.20A

13.966 ± 1.607B

7.766 ± 2.344C

5.733 ± 2.702D

1.8 ± 1.270E

0.566 ± 1.165E

Adult longevity (day)

19.166 ± 1.205A

17.166 ± 1.487B

10.333 ± 2.411C

7.533 ± 2.528D

3.333 ± 1.935E

1.2 ± 1.562F

Fecundity (Nymph/Female)

45.033 ± 2.59A

37.566 ± 1.675B

23.333 ± 2.590C

15.866 ± 1.30D

12.366 ± 3.576E

1.633 ± 2.525F

Total longevity (day)

27.6 ± 0.621A

24.866 ± 1.041B

22.333 ± 1.154C

16.833 ± 2.29D

14 ± 2.228E

8.4 ± 3.987F

  1. The same letters indicate no significant difference between the concentrations of each parameter independently