1-nonene plays an important role in the response of maize-aphid-ladybird tritrophic interactions to nitrogen DOI Creative Commons

Shiwen Zhao,

Yu Pan, Zhun Wang

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 8, 2024

Plant volatile organic compounds (VOCs) are the key distress signals involved in tritrophic interactions, by which plants recruit predators to protect themselves from herbivores. However, effect of nitrogen fertilization on VOCs that mediate interactions remains largely unidentified. In this study, a maize ( Zea mays )-aphid Rhopalosiphum padi) -ladybird Harmonia axyridis) interaction model was constructed under high-nitrogen (HN) and low-nitrogen (LN) regimens. H. axyridis had stronger tendency be attracted aphid-infested HN conditions. Then, volatiles were collected identified leaves aphids fed. All HN-induced (HNIVs) elicited an electroantennogram (EAG) response . Of these HNIVs, 1-nonene attractive simulated natural volatilization. Furthermore, our regression showed release positively correlated with visitation rates. Supplying fed LN enhanced attractiveness axyridis. These results supported conclusion active compound mediated interaction. addition, synthesis pathway hypothesized, we found might related presence salicylic acid (SA) abscisic (ABA). This research contributes development novel environmentally friendly strategies optimize fertilizer application improve pest control crops.

Language: Английский

Effects of timed LED regimes on tomato plant traits, performance of two‐spotted spider mites, and predatory mites (Phytoseiulus persimilis) DOI Creative Commons
Patrice Jacob Savi, Samantha Hall,

Maria Hernandez

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Abstract BACKGROUND Light‐emitting diodes (LEDs) are being used in controlled environments to enhance crop production and pest management with most studies focusing on continuous treatments (applied throughout the entire daytime or nighttime period). Here, we tested hypothesis that providing tomato plants timed LED regimes (daily 3‐h doses of red, blue, far‐red LED) during day at night may affect their traits (leaf reflectance indices, element composition, phenolic profile), performance two‐spotted spider mites ( Tetranychus urticae ) (TSSM), a species predatory mite Phytoseiulus persimilis) . RESULTS Nighttime significantly altered leaf composition: red increased K levels, blue enhanced Mg Mn Cu reduced Zn levels. Among regimes, level. glandular trichome densities (except regime) total content. series ARI CRI response but decreased regimes. Performance bioassays showed lower TSSM populations than control plants. did not mites' population feeding capacity, except for regime, which was mobile TSSM. These results suggest have potential strategically manipulate plant‐prey–predator interactions. CONCLUSION We conclude can be crucial designing integrated strategies promote both plant growth effective biological environments. © 2025 The Author(s). Pest Management Science published by John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

Citations

1
Artificial lighting affects the predation performance of the Insidiosus flower bug (Hemiptera: Anthocoridae) against the Western flower thrips (Thysanoptera: Thripidae) DOI Creative Commons

Morgane Louise Canovas,

Paul K. Abram,

Jean-François Cormier

et al.

Environmental Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Protected crops like greenhouses and indoor farms using light-emitting diodes (LEDs) allow precise control of light spectrum, intensity, photoperiod for agronomic purposes. These artificial conditions also influence insects arachnids, including predators used in biological control. Despite growing interest, the effects LEDs on predator behavior efficacy remain poorly understood. In microcosm experiments, we studied locomotion predation behaviors generalist Orius insidiosus against thrips (Frankliniella occidentalis) under different spectra intensities. We tested narrowband blue, green, red spectra, 3 blue-red ratios, a spectrum combining all colors across light-intensity gradient. Predators attacked prey lighting conditions, with 70% individuals showing predatory during observations. Spectral composition significantly influenced while intensity had negligible effects. Narrowband elicited highest attack probabilities, but mixed higher proportion yielded capture rates. The showed intermediate success. complex environments cucumber plants 24-h sequences, probabilities followed similar trends to experiments. However, survival rates remained treatments. Our findings suggest that influences O. behavior, this remains effective various providing foundation strategies balance plant productivity

Language: Английский

Citations

0
Supplemental far-red light influences flowering traits and interactions with a pollinator in tomato crops DOI Creative Commons
Davy Meijer, Femke van Doesburg,

Luuk Jungerling

et al.

Environmental and Experimental Botany, Journal Year: 2023, Volume and Issue: 213, P. 105438 - 105438

Published: July 14, 2023

Plants sense a reduction in the red to far-red light ratio as cue of competition and respond by accelerated growth reproduction. These responses can be exploited horticulture applying light-emitting diodes (LEDs). Responses also have marked effects on plant defences influence plant-herbivore plant-carnivore interactions. It is, however, not known how changes flowering traits induced affect plant-pollinator We studied supplemental tomato truss development, floral volatiles, pollen sugar amino acid content, foraging behaviour buff-tailed bumblebee (Bombus terrestris). Far-red significantly increased height, number flowers per truss. Floral volatile emission was early stages content higher plants exposed light. Pollen affected. Bumblebees spent more time far-red-exposed visited these plants. conclude that exposure leads flower increase attraction bumblebees, which has promising implications for use LEDs greenhouse crops.

Language: Английский

Citations

8
Effects of far‐red light on the behaviour and reproduction of the zoophytophagous predator Macrolophus pygmaeus and its interaction with a whitefly herbivore DOI Creative Commons
Davy Meijer,

Syb Hopkoper,

Berhane T. Weldegergis

et al.

Plant Cell & Environment, Journal Year: 2023, Volume and Issue: 47(1), P. 187 - 196

Published: Sept. 13, 2023

Plants can detect neighbouring plants through a reduction in the ratio between red and far-red light (R:FR). This provides signal of plant-plant competition induces rapid plant growth while inhibiting defence against biotic stress, two interlinked responses designated as shade avoidance syndrome (SAS). Consequently, SAS influence plant-herbivore interactions that could cascade to higher trophic levels. However, little is known about how expression tritrophic interactions. We investigated whether changes R:FR affect emission herbivore-induced volatiles (HIPVs), these attraction zoophytophagous predator Macrolophus pygmaeus. also studied subsequent inhibition defences affects reproduction M. pygmaeus both presence absence greenhouse whitefly (WF) (Trialeurodes vaporariorum) arthropod prey. The results show have effect on HIPV emissions attraction. leads increased WFs. discuss increase population development combination reduced herbivore densities.

Language: Английский

Citations

3
Spotlight on Eupeodes americanus: Oviposition and fertility under HPS- and full spectrum LED-extended photoperiod in northern greenhouses DOI
Noémie Gonzalez, Rosemarije Buitenhuis, Éric Lucas

et al.

Biological Control, Journal Year: 2023, Volume and Issue: 187, P. 105382 - 105382

Published: Oct. 25, 2023

Language: Английский

Citations

3
1-nonene plays an important role in the response of maize-aphid-ladybird tritrophic interactions to nitrogen DOI Creative Commons

Shiwen Zhao,

Yu Pan, Zhun Wang

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 8, 2024

Plant volatile organic compounds (VOCs) are the key distress signals involved in tritrophic interactions, by which plants recruit predators to protect themselves from herbivores. However, effect of nitrogen fertilization on VOCs that mediate interactions remains largely unidentified. In this study, a maize ( Zea mays )-aphid Rhopalosiphum padi) -ladybird Harmonia axyridis) interaction model was constructed under high-nitrogen (HN) and low-nitrogen (LN) regimens. H. axyridis had stronger tendency be attracted aphid-infested HN conditions. Then, volatiles were collected identified leaves aphids fed. All HN-induced (HNIVs) elicited an electroantennogram (EAG) response . Of these HNIVs, 1-nonene attractive simulated natural volatilization. Furthermore, our regression showed release positively correlated with visitation rates. Supplying fed LN enhanced attractiveness axyridis. These results supported conclusion active compound mediated interaction. addition, synthesis pathway hypothesized, we found might related presence salicylic acid (SA) abscisic (ABA). This research contributes development novel environmentally friendly strategies optimize fertilizer application improve pest control crops.

Language: Английский

Citations

0