Guessab, A., Mouffok , E., Lazreg, F., Abdelkader, E., 2021. Population dynamics, seasonal fluctuations and spatial distribution of the olive psyllid <i>Euphyllura olivina</i> Costa (Homoptera, Psyllidae) in Algeria. Arxius de Miscel·lània Zoològica, 19, Doi: https://doi.org/10.32800/amz.2021.19.0183

 

Table 1. Number of olive psylla/tree recorded on infested olive in Ain fares and in Oued taria according to cardinal orientations during 2019/2020. The cumulative number in the same row with different letters significantly differs at P–value ≤ 0.05 (tests for significant differences among all pairs using x2–test; NS, not significant at P–value ≥ 0.05).

Tabla 1. Número de psílidos del olivo/árbol en los olivos infestados en Ain fares y en Oued taria según la orientación cardinal durante la temporada 2019/2020. El número acumulado en la misma fila con distintas letras difiere significativamente en valores de P ≤ 0.05 (tests para diferencias significativas entre todos los pares usando el test x2; NS, no significativo para valores de P ≥ 0.05).

 

Ain fares
 

L1

L2

L3

L4

L5

Adult

female

Adult

male

Eggs

P-value

x2 test

South

11a

15ab

21ab

9a

9a

35bc

6a

62c

< 0.0001

x2 = 120.28: df = 7

North

3a

9abc

30d

20bcd

7abc

23bd

5ac

63e

< 0.0001

x2 = 138.1;  df = 7

East

8ab

19ab

22a

7ab

5b

16ab

7ab

53c

< 0.0001

x2 = 102.24; df = 7

West

3a

15ab

20b

8ab

11ab

13ab

3a

20b

< 0.0001

x2 = 27.17;  df = 7

Center

9ab

15ab

24a

24a

10ab

24a

5b

62c

< 0.0001

x2 = 104.59; df = 7

 

Oued taria
 

L1

L2

L3

L4

L5

Adult
female

Adult
male

Eggs

P-value

x2 test

South

13ab

33acd

40cd

25abc

16ab

56de

10b

89e

< 0.0001

x2 = 140.58; df = 7

North

8ab

17ab

22a

10ab

4b

15ab

5b

54c

< 0.0001

x2 = 109.08; df = 7

East

7ab

18ab

21a

16ab

22a

20a

4b

59c

< 0.0001

x2 = 94.12; df = 7

West

0a

14bc

21b

17b

1a

14bc

3ac

33b

< 0.0001

x2 = 47.94; df = 6

Center

9a

24ab

25ab

12a

11a

34b

8a

79c

< 0.0001

x2 = 154.75; df = 7