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Table 4 Relative importance (%) of Zonocerus variegatus pressure in different fields types in the humid forest zone of Southern Cameroon.

From: Farmers' perception on the importance of variegated grasshopper (Zonocerus variegatus (L.)) in the agricultural production systems of the humid forest zone of Southern Cameroon

All
AECD-Blocks Affub owondo Affub bidi Assan Essep Garden crops Young perennial crop p-value
Yaounde 10 34 21 9 20 5 <0.0001
Mbalmayo 31 28 9 5 17 9 <0.0001
Ebolowa 19 28 20 12 7 14 <0.001
   p-value <0.01 NS <0.05 NS <0.05 NS  
   Means 20 30 17 9 15 9 <0.0001
Female
Yaounde 11 38 21 9 17 3 0.0121
Mbalmayo 29 21 12 8 25 5 0.0021
Ebolowa 20 28 22 9 5 16 0.0346
   p-value NS NS NS NS 0.0380 NS  
   Means 20 29 18 9 16 8 0.0001
Male
Yaounde 10 31 21 9 22 7 0.0029
Mbalmayo 33 36 6 3 10 12 0.0010
Ebolowa 19 28 19 15 9 11 0.0175
   p-value 0.0209 NS 0.0220 NS 0.0422 NS  
   Means 21 32 15 9 14 10 <0.0001
  1. The values are averages of the scores for 10 groups of farmers (5 male and 5 female groups) interviewed per block. Affub owondo is Grandnut' field. Essep is dry season' fields. Assan is marsh' fields. p-value is the significance levels of a non parametric test of Kruskal-Wallis; NS = nonsignificant (p > 0.05). AECD-Blocks = Agro-Ecological, Cultural and Demographic Blocks.