Chemical cues involved in the host foraging behavior of Psyttalia concolor wasps to locate the olive fruit fly Bactrocera oleae DOI Creative Commons
Giannoula Bogka, Eirini Anastasaki, Panagiotis Milonas

et al.

Frontiers in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 11

Published: June 16, 2023

Foraging parasitoids rely on infochemicals, derived from the habitat, host plant and/or insect itself. Here, we studied olive fruit fly Bactrocera oleae (Rossi) (Diptera: Tephritidae), a major pest in agroecosystem and its larval parasitoid, Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae), well-established abundant wasp Crete. To improve parasitoid’s efficiency as biological control agent, more knowledge location behavior is required. The aim of this study was to investigate role oviposition- (OIPVs) herbivore-induced volatiles (HIPVs) emitted by trees upon infestation B. well cues , e.g., pheromones, therein. We conducted two-choice bioassays test preference P. different olfactory stimuli. Moreover, collected headspace fruits branches whether egg or changes volatile emissions locally or/and systemically. found that wasps showed strong larval-infested compared clean air, non-infested, egg-infested, mechanical-damaged fruits. But they were not able discriminate between non-infested branches. In addition, attracted virgin mated females. They neither males nor with without oviposition marking . important qualitative differences profiles egg- fruits: nineteen compounds only detected infested fruits, such terpenoids (E)-β -ocimene (E,E) - α -farnesene. analysis olives change systemically response infestation. Our results suggest both HIPVs play an during location. Further chemical utilized parasitoid locate could help application orchards natural enemies.

Language: Английский

Microbe-mediated alterations in floral nectar: consequences for insect parasitoids DOI Creative Commons
Antonino Cusumano, Bart Lievens

Current Opinion in Insect Science, Journal Year: 2023, Volume and Issue: 60, P. 101116 - 101116

Published: Sept. 22, 2023

Floral nectar is frequently colonized by microbes among which bacteria and yeasts are the most abundant. These have ability to alter characteristics with consequences for whole community of flower-visiting insects. Recent research carried out on natural enemies insect herbivores has shown that microbe-mediated changes in traits can influence foraging behavior life history parasitoids. The production microbial Volatile Organic Compounds (mVOCs) affect attraction parasitoids nectar, while sugar amino acid composition impact their longevity. Future should focus understanding effects colonization parasitoid reproduction, a specific emphasis interactions different taxa known co-occur floral nectar. Overall, this review highlights importance considering role nectar-inhabiting shaping between food resources.

Language: Английский

Citations

14
Nanosilica supplementation in tomato increases oviposition on stems and caterpillar mortality in the tomato pinworm DOI Creative Commons
Kokou Rodrigue Fiaboe, Fathiya M. Khamis, Xavier Cheseto

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(13)

Published: March 24, 2025

Silicon-induced responses play a key role in plant defense against herbivory, though the underlying mechanisms remain underexplored. In this study, we examined how mesoporous silica nanoparticles (MSNs) affect tomato ( Solanum lycopersicum ) an invasive and highly destructive lepidopteran herbivore, pinworm (TPW), Phthorimaea absoluta . plants supplemented with MSN, prior exposure to TPW oviposition shifted subsequent egg-laying from preference for leaves even distribution between stems leaves. This shift was not observed nonsilicon-supplemented plants. Prolonged triggered pigmentation basal cells of type I glandular trichomes on silicon-supplemented Chemical analysis by coupled gas chromatography-mass spectrometry revealed that pigmented trichome rich soluble sugars (sucrose l -arabinose) waxes, dominated saturated hydrocarbon tetracosane. Bioassays crude extract three-component sugar–wax blend replicated caterpillar response trichome, while individual components produced variable effects. While -arabinose alone effects blend, sucrose increased feeding survival, tetracosane caused highest mortality. Additionally, these treatments altered gut microbiota composition influenced frass volatiles, which attracted natural enemies, Nesidiocoris tenuis (predator) Neochrysocharis formosa (parasitoid). Our findings suggest silicon supplementation increases through oviposition-induced responses, promotes recruitment enemies.

Language: Английский

Citations

0
Temporal patterns of emergence dynamics of egg parasitoids of the pine processionary moth, Thaumetopoea pityocampa (Denis & Schiffermüller 1775) (Lepidoptera: Notodontidae) in response to scales DOI
Sara Hezil, Gahdab Chakali

Biocontrol Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: May 1, 2025

Language: Английский

Citations

0
PARASITOIDS AS BIOCONTROL AGENTS IN INDIA DOI
S. Kumaraswamy,

Sindhura Kopparthi Av,

R. H.

et al.

Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: 66, P. 101282 - 101282

Published: Oct. 12, 2024

Language: Английский

Citations

3
Bridging biotremology and chemical ecology: a new terminology DOI
Valerio Mazzoni, Gianfranco Anfora, Reginald B. Cocroft

et al.

Trends in Plant Science, Journal Year: 2024, Volume and Issue: 29(8), P. 848 - 855

Published: May 14, 2024

Language: Английский

Citations

2
How exposure to a neonicotinoid pesticide affects innate and learned close-range foraging behaviour of a classical biological control agent DOI Creative Commons
Gabriele Rondoni, Elena Chierici, Elissa Daher

et al.

Biological Control, Journal Year: 2024, Volume and Issue: 196, P. 105568 - 105568

Published: June 28, 2024

While foraging in agricultural habitats, natural enemies, such as egg parasitoids, may encounter insecticide residues, which, if not lethal, can alter host location behaviour and learning capacity. Such interference reduce the potential of biological control agents, especially exotic species which are released small numbers a new environment first need to establish build up their populations. Several studies have investigated lethal effects pesticides on but less information is available about non-lethal consequences, no effect associative parasitoids. The parasitoid Trissolcus japonicus (Ashmed) (Hymenoptera: Scelionidae) agent invasive brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). We hypothesised that low concentration (causing 20 % mortality) commonly used neonicotinoid (acetamiprid) alters capacity T. exploit chemical traces left by reproductive females either main host, H. halys, or an alternative Arma custos (F.) In open arena bioassays, responded positively both bug species. Following oviposition experience with (associative learning), reduced time. Parasitoids previously exposed showed changes behaviour, increased residence time spent host-contaminated area altered kinetics walking behaviour. Neonicotinoid exposition did affect ability 1 h after prolonged memory retention. female its this should be considered when attempting establishment introduction areas.

Language: Английский

Citations

2
Egg coverings in insects: ecological adaptation to abiotic and biotic selective pressures DOI
Tianhao Li, Xingeng Wang, Nicolas Desneux

et al.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 22, 2024

ABSTRACT Insects have evolved a spectrum of strategies that facilitate survival in the face adverse environmental conditions and bottom‐up or top‐down pressures. The egg is first stage life cycle most insects. It not only immobile but many insects survives unfavourable seasons when food resources are unavailable. Eggs targeted by oophagous natural enemies also subject to abiotic stresses. In response these diverse stresses, developed various protection strategies. Females lay eggs clusters then use their own body cover them provide from harsh environments biotic attack. Such allowed some herbivorous thrive new become serious invasive pests. protect other ways (e.g. laying concealed places, direct parental care) while others do at all. Here, we review protective Our focus on adaptive ecological mechanisms temporal variation as well benefits costs coverings. We highlight several case studies how traits might impede biological control globally important agricultural forest pests propose framework for incorporating into programs especially insect

Language: Английский

Citations

2
The effects of plant domestication on the foraging and performance of parasitoids DOI Creative Commons
Betty Benrey

Current Opinion in Insect Science, Journal Year: 2023, Volume and Issue: 57, P. 101031 - 101031

Published: April 5, 2023

Domestication-related changes in the chemical traits of crop plants affect parasitoid foraging success, development, and survival. For example, herbivore-induced production volatiles by domesticated can enhance or reduce attraction. While trade-off between nutrient content defense cultivated increase suitability hosts for parasitoids, their increased health size positively immune response against parasitoids. Overall, plant domestication is expected to significantly relationship with parasitoids due altered morphology, physical characteristics, defenses, new associations. This review highlights need research on effects host-parasitoid interactions interest better controlling insect pests.

Language: Английский

Citations

6
Phenotypic plasticity in an egg parasitoid affects olfactory response to odors from the plant–host complex DOI Creative Commons
Elena Chierici, Giuseppino Sabbatini-Peverieri, Pio Federico Roversi

et al.

Frontiers in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 11

Published: Aug. 16, 2023

Female egg parasitoids must optimize their ability to find a suitable host for reproduction in limited foraging time. Odorant cues associated with the plant–host complex play an essential role guiding females toward host. However, parasitoid response is not always identical within same genotype, and it could be influenced by environment. This phenotypic plasticity affects behavior morphology directly linked rearing conditions. Yet, how influences olfactory responses of odors largely unexplored. Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) effective biocontrol agent invasive brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). Laboratory no-choice choice tests showed T. potential develop eggs non-target Pentatomidae. In Y-tube olfactometer we evaluated reared on different hosts derived volatiles H. two other bug species. Parasitoids main positively responded only from V. faba – complex. When alternative hosts, was smaller did exhibit attraction any stimuli, although load partially affected. Host-induced should considered when evaluating classical biological control.

Language: Английский

Citations

6
The oviposition of cotton bollworms stimulates the defense against its eggs and larvae in tomato plants DOI

Jin‐Hua Shi,

Rui Shao, Sara Taha Abdelkhalek

et al.

Pest Management Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Herbivorous insects sustain their populations by oviposition. To reduce the damage caused herbivores, host plant triggers a defensive response upon detection of egg deposition. However, specific impact deposition time cotton bollworm Helicoverpa armigera (Lepidoptera: Noctuidae), on tomato defense remains obscure.

Language: Английский

Citations

1