Attraction of Three Mirid Predators to Tomato Infested by Both the Tomato Leaf Mining Moth Tuta absoluta and the Whitefly Bemisia tabaci
| Autor: | Joop J. A. van Loon, Maria Fernanda G. V. Peñaflor, V. H. P. Bueno, José Maurício Simões Bento, Diego B. Silva, Joop C. van Lenteren |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Nymph Biological pest control Engytatus varians Leaf miner Macrolophus basicornis Multiple herbivory Whitefly Moths medicine.disease_cause 01 natural sciences Biochemistry Gas Chromatography-Mass Spectrometry Heteroptera Solanum lycopersicum Infestation Plant defense against herbivory medicine Animals Laboratory of Entomology Ecology Evolution Behavior and Systematics Principal Component Analysis Volatile Organic Compounds Predator foraging behavior biology Campyloneuropsis infumatus General Medicine biology.organism_classification PE&RC Laboratorium voor Entomologie Attraction Plant Leaves 010602 entomology Horticulture Olfactometer Larva Predatory Behavior COMPOSTOS VOLÁTEIS Tuta absoluta Female Tomato pests EPS 010606 plant biology & botany |
| Zdroj: | Journal of Chemical Ecology 44 (2018) 1 Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Journal of Chemical Ecology, 44(1), 29-39 |
| ISSN: | 0098-0331 |
| Popis: | Plants emit volatile compounds in response to insect herbivory, which may play multiple roles as defensive compounds and mediators of interactions with other plants, microorganisms and animals. Herbivore-induced plant volatiles (HIPVs) may act as indirect plant defenses by attracting natural enemies of the attacking herbivore. We report here the first evidence of the attraction of three Neotropical mirid predators (Macrolophus basicornis, Engytatus varians and Campyloneuropsis infumatus) toward plants emitting volatiles induced upon feeding by two tomato pests, the leaf miner Tuta absoluta and the phloem feeder Bemisia tabaci, in olfactometer bioassays. Subsequently, we compared the composition of volatile blends emitted by insect-infested tomato plants by collecting headspace samples and analyzing them with GC-FID and GC-MS. Egg deposition by T. absoluta did not make tomato plants more attractive to the mirid predators than uninfested tomato plants. Macrolophus basicornis is attracted to tomato plants infested with either T. absoluta larvae or by a mixture of B. tabaci eggs, nymphs and adults. Engytatus varians and C. infumatus responded to volatile blends released by tomato plants infested with T. absoluta larvae over uninfested plants. Also, multiple herbivory by T. absoluta and B. tabaci did not increase the attraction of the mirids compared to infestation with T. absoluta alone. Terpenoids represented the most important class of compounds in the volatile blends and there were significant differences between the volatile blends emitted by tomato plants in response to attack by T. absoluta, B. tabaci, or by both insects. We, therefore, conclude that all three mirids use tomato plant volatiles to find T. absoluta larvae. Multiple herbivory did neither increase, nor decrease attraction of C. infumatus, E. varians and M. basicornis. By breeding for higher rates of emission of selected terpenes, increased attractiveness of tomato plants to natural enemies may improve the effectiveness of biological control. |
| Databáze: | OpenAIRE |
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