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. 2023 Mar 30;14(4):339. doi: 10.3390/insects14040339

Table 2.

Impulse burst rate means of red palm weevil sound activities within infested trees for all treatments during a six-month period.

Treatment Mean monthly Impulse Burst Rates (rs) of Red Palm Weevil (RPW) Sound Activities within Initially Infested Palm Trees Statistical Analysis
Fdf1,df2; p
0 1 2 3 4 5 6
Control (water) 0.43 ± 0.09 aAB 0.42 ± 0.21 abA 0.05 ± 0.01 abA 0.23 ± 0.05 abA 0.23 ± 0.05 abA 0 ± 0 bA 0 ± 0 bA F6,35 = 2.99; <0.02
Fipronil (Fiprol) 0.56 ± 0.14 aA 0.29 ± 0.12 abAB 0.06 ± 0.02 bA 0.01 ± 0.01 bB 0.13 ± 0.06 bB 0.01 ± 0.01 bB 0.01 ± 0.01 bB F6,35 = 6.77; <0.001
Fungus (B. bassiana) 0.52 ± 0.15 aAB 0.22 ± 0.11 abAB 0.03 ± 0.01 bA 0 ± 0 bB 0 ± 0 bC 0 ± 0 bA 0 ± 0 bA F6,42 = 7.66; <0.001
Fungus (M. anisopliae) 0.55 ± 0.16 aA 0.11 ± 0.08 bB 0.03 ± 0.02 bA 0 ± 0 bB 0 ± 0 bC 0 ± 0 bA 0 ± 0 bA F6,42 = 7.85; <0.001
Mixed fungal isolates 0.28 ± 0.04 aAB 0.18 ± 0.12 abAB 0.03 ± 0.01 bcA 0 ± 0 bB 0 ± 0 bC 0 ± 0 bA 0 ± 0 bA F6,56 = 5.23; <0.001
TreeCare (emamectin benzoate) 0.23 ± 0.04 aB 0.07 ± 0.01 bB 0.05 ± 0.02 bA 0.05 ± 0.02 bB 0 ± 0 bC 0 ± 0 bA 0 ± 0 bA F6,70 = 14.61; <0.001
Aluminum phosphide 0.35 ± 0.09 aAB 0.07 ± 0.04 bB 0.01 ± 0.01 bA 0 ± 0 bB 0 ± 0 bC 0 ± 0 bA 0 ± 0 bA F6,42 = 10.29; <0.001
Nematode (S. carpocapsae) 0.24 ± 0.04 aAB 0.11 ± 0.01 bB 0.03 ± 0.01 cA 0.03 ± 0.01 cB 0 ± 0 cC 0 ± 0 cA 0 ± 0 cA F6,70 = 21.51; <0.001
Statistical analysis (F7,56; p) F = 2.19; 0.052 F = 1.51; 0.1878 F = 0.54; 0.7982 F = 14.07; <0.0001 F = 14.70; <0.0001 F = 27.35; <0.0001 F = 1.56; 0.1700

Means that are followed by the same small letter in the same row or by the same capital letter in the same column are not significantly different at p < 0.05.