| Autor: |
Hammami, Sonia, Ezzine, Olfa, Bystrowski, Cezary, Yangui, Islem, Dhahri, Samir, Jamâa, Mohamed Lahbib Ben |
| Předmět: |
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| Zdroj: |
Biologia; Nov2023, Vol. 78 Issue 11, p3143-3152, 10p |
| Abstrakt: |
The polyphagous larvae of Orgyia trigotephras cause considerable damages to the maquis. The aim of this work is to study the influence of host plants on larval growth, pupal development, female fecundity of O. trigotephras, and the natural enemies community on Quercus coccifera L. and Pistacia lentiscus L. in two Tunisian forests during a post-outbreak phase of the pest from 2013 to 2021. Eggs, larvae, and pupae were collected and reared until the emergence of parasitoids. Results showed that densities of egg batches, larvae, and pupae varied significantly among years, between forests and host plants. Fecundity of females varied between years and host species, but not between forests. Egg mortality was significantly different only between forests. However, there was a significant variation in larval mortality between host plants over years. General pupal mortality was significantly different only among years; 23.4% of pupae were dead, and the remaining ones (76.5%) become adults. The action of natural enemies on eggs and larvae was highly significant over years and differed between forests. Pupal parasitism varied between years and host plants but not between forests. Host plant and parasitoids allowed us to understand the mechanisms involved in the interaction between defoliating insects. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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