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Table 1 Efficacy of methanolic garlic extract on the frond infestation percentages at Siwa date palm groves (2017 season)

From: Abundance of palm frond borer Phonapate frontalis (Fah.) (Coleoptera: Bostrichidae) with reference to potential use of garlic extract for its control in Siwa Oasis, Egypt

Inspection date conc. January February March April May June July August September October November December Total/year Average/year* Infestation (%) Corrected (%)
Control 7 5 11 26 44 72 81 71 71 39 13 10 450 37.5 ± 8.5a   
1000 ppm 7 8 11 20 22 40 32 38 30 22 16 10 256 21.33 ± 3.33b 56.89 43.11
2000 ppm 8 10 13 22 28 36 30 28 36 19 12 6 248 20.67 ± 3.13b 55.11 44.89
3000 ppm 7 11 20 32 22 30 26 34 28 28 17 5 260 21.67 ± 2.83b 57.78 42.22
  1. *Data represented by mean ± SE and means in the same column followed by the same letter are not significantly different