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- Title
Biological control by parasitoids does not enhance pepino mosaic virus transmission.
- Authors
Noël, P.; Hance, T.; Muratori, F.; Bragard, C.
- Abstract
Biological control by natural enemies could enhance pathogen transmission particularly in systems with simple mechanical transmission. To understand potential risk of pathogen dissemination, experiments were conducted to investigate ability of the green peach aphid, Myzus persicae, and its biological control agent, the parasitoid Aphidius colemani, to externally carry and transmit Pepino mosaic virus (PepMV) to tomato. On average, 53 % of the aphids and 78 % of the parasitoids carried the virus on the surface of their bodies after 2 h of contact. After 72 h of contact, at least 90 % of both insects were contaminated. Virus transmission was observed with M. persicae that were in contact with infected plants for 48 h (10 %) and 72 h (25 %), but no transmission was recorded with contact periods of 8 h or 24 h. Aphidius parasitoids failed to disseminate virus to healthy plants during transmission experiments with naturally and artificially infected parasitoids, despite testing more than 3000 individuals.
- Subjects
BIOLOGICAL control of tomato diseases &; pests; PARASITOIDS; GREEN peach aphid; BIOLOGICAL control of aphids; APHIDIUS
- Publication
European Journal of Plant Pathology, 2016, Vol 145, Issue 2, p493
- ISSN
0929-1873
- Publication type
Article
- DOI
10.1007/s10658-015-0838-x