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Table 3 Average number (±SE) of eggs, n = 30, per egg mass of Orgyia trigotephras parasitized by Aprostocetus sp. and predated by Coccidiphila rungsella at Jebel Abderrahmane (Tunisia), and dispersion index values for the parasitoid/predator on the two host plant species

From: Host use in Orgyia trigotephras (Erebidae, Lymantriinae) during outbreak: effects on larval performance and egg predation

  

Year

 

Host species

2005

2009

2014

Parasitized egg

Pistacia lentiscus

0.4 ± 0.2a

1.1 ± 0.3a

7.1 ± 1.4a

Quercus coccifera

1.8 ± 0.5b

2.9 ± 0.5b

9.8 ± 2.2a

Dispersion index

Pistacia lentiscus

2.2

2.3

8.5

Quercus coccifera

4.3

2.20

15

Predated egg

Pistacia lentiscus

0

1 ± 0.2a

5.2 ± 1a

Quercus coccifera

0.3 ± 0.2

4.0 ± 1.4b

2.1 ± 0.9b

Dispersion index

Pistacia lentiscus

_

1.7

5.7

Quercus coccifera

5.2

13.9

10.1

  1. Within each year, values labeled with different superscript letters are significantly different (P < 0.05)