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- Title
IMPACT OF NATURAL ENEMIES ON LARVAE OF THAUMETOPOEA BONJEANI (LEPIDOPTERA NOTODONTIDAE) IN ASSOCIATION WITH THAUMETOPOEA PITYOCAMPA IN NORTHERN ALGERIA.
- Authors
RAHIM, NOUREDDINE; CHAKALI, GAHDAB; BATTISTI, ANDREA
- Abstract
The cedar processionary moth, Thaumetopoea bonjeani (Lepidoptera: Notodontidae), is a serious pest of the Atlas cedar Cedrus atlantica in north-western Africa and it is involved in the decline of this endangered tree species. Natural enemies of the cedar processionary moth are poorly known, especially for parasitoids, predators and pathogens of the larval-pupal life stages. Mature larvae were collected and examined in 2014 and 2015 in natural stands of Atlas cedar in the Djurdjura (northern Algeria), in occurrence with pine processionary moth Thaumetopoea pityocampa. The overall mortality rate of larvae of Thaumetopoea bonjeani ranged from 26.4% to 31.1%, with generalist predators and parasitoids being more effective than pathogens. Four primary parasitoid species were recorded, of which four tachinid flies and one braconid wasp, as well as four predatory beetles and one fungus. The most important species were the carabid Calosoma sycophanta and the tachinid Compsilura concinnata. The cooccurrence of T. bonjeani and T. pityocampa may offer to generalist natural enemies an extended period of availability of similar preys, as the two processionary moths have different life cycles. The sharing of natural enemies between the two species of Thaumetopoea can mitigate the outbreaks of both species.
- Subjects
CEDAR; THAUMETOPOEA; PARASITOIDS; MULTIPURPOSE trees; ENDANGERED species
- Publication
Redia: Journal of Zoology / Giornale di Zoologia, 2021, Vol 104, p199
- ISSN
0370-4327
- Publication type
Article
- DOI
10.19263/REDIA-104.21.23