Table 7

Influence of season on the population pressure (%) of Zonocerus variegatus on annual and perennial crops in the humidforest zones of Southern Cameroon.
Crops
 AECD-Blocks
 Long dry season
Short rainy season
Short dry season
Long rainy season
p-value
Annual Crop
 Yaoundé
 72
 4
 16
 9
 <0.0001

Mbalmayo
 70
 7
 11
 13
 <0.0001

Ebolowa
 64
 10
 27
 0
 <0.0001

     p-value
 NS
 NS
 NS
 NS

     Means
 69
 7
 18
 7
 <0.0001
Young Perennial Crops
 Yaoundé
 25
 3
 12
 1
 <0.05

Mbalmayo
 36
 5
 10
 10
 <0.05

Ebolowa
 63
 9
 29
 0
 <0.0001

     p-value
 <0.05
 NS
 <0.05
 NS

     Means
 41
 5
 17
 4
 <0.0001
Female
Annual Crop
 Yaoundé
 76
 1
 13
 10
 0.0054

Mbalmayo
 68
 5
 12
 15
 0.0071

Ebolowa
 67
 9
 24
 0
 0.0015

     p-value
 NS
 NS
 NS
 NS

     Means
 69
 5
 16
 8
 <0.0001
Young Perennial Crops
 Yaoundé
 15
 0
 5
 0
 NS

Mbalmayo
 31
 6
 13
 10
 NS

Ebolowa
 69
 4
 27
 0
 0.0017

     p-value
 NS
 NS
 NS
 NS

     Means
 38
 3
 15
 3
 0.0014
Male
Annual Crop
 Yaoundé
 68
 6
 19
 7
 0.0061

Mbalmayo
 72
 9
 9
 10
 0.0080

Ebolowa
 61
 10
 29
 0
 0.0015

     p-value
 NS
 NS
 NS
 NS

     Means
 67
 8
 19
 6
 <0.0001
Young Perennial Crops
 Yaoundé
 34
 6
 18
 2
 NS

Mbalmayo
 40
 3
 7
 9
 NS

Ebolowa
 57
 13
 30
 0
 0.0017

     p-value
 NS
 NS
 NS
 NS

     Means
 44
 7
 18
 4
 0.0002

The values are averages of the scores for 10 groups of farmers (5 male and 5 female groups) interviewed per AECD-Blocks; 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.

Kekeunou et al. Journal of Ethnobiology and Ethnomedicine 2006 2:17   doi:10.1186/1746-4269-2-17