Measurement of semiochemical release rates with a dedicated environmental control system

Zhu, Heping; Thistle, Harold W.; Ranger, Christopher M.; Zhou, Hongping; Strom, Brian L.

doi:10.1016/j.biosystemseng.2014.11.003

Cited by 12 publications

(8 citation statements)

References 15 publications

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“…In fact, when the wind speed and RH were set, it was obvious that the diffusion coefficient increased with temperature, mainly for low RH values (Figures 2a and 2b). This finding accorded with results obtained for other environmentally friendly devices described in the literature (Van der Kraan et al, 1990;Torr et al, 1997;Atterholt et al, 1999;Johansson et al, 2001;Shem et al, 2009;Zhu et al, 2015) and in the first study conducted by Heuskin et al (2012b) on the alginate bead release system. Temperature had a direct impact on the evaporation of volatile molecules in the air (Krüger et al, 2002).…”

Section: Effects Of Temperature Relative Humidity and Wind Speed On E...supporting

confidence: 90%

“…To date, only a few studies have investigated the use of alginate beads as a semiochemical release device in biological control (Yosha et al, 2008;Heuskin et al, 2012b). Some studies of other release devices have shown that climatic factors could have a significant effect on their diffusion mechanism and should not be ignored in terms of device optimization (Van der Kraan et al, 1990;Suckling et al, 1999;Atterholt et al, 1999;Shem et al, 2009;Zhu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Impact of climatic factors on the release of E-β-caryophyllene from alginate beads

Daems¹,

Béra²,

Lorge³

et al. 2016

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Description of the subject. Alginate beads that release semiochemical compounds are interesting biological control devices used to attract the natural enemies of aphids in infested crops. Little information, however, is available about the impact of climatic factors on the release of semiochemicals from this diffusive system. Objectives. The objective of this scoping study was to investigate the impact of temperature, relative humidity and wind speed, on the release of E-β-caryophyllene from alginate beads. Method. The impact of the three climatic factors on the release of E-β-caryophyllene from alginate beads was evaluated using a Box-Behnken experimental design and a laboratory scale volatile collection system. The influence of relative humidity on bead water content and size, with and without this semiochemical, was also investigated using a gravimetric method and an easy-to-use photographic device, respectively. Results. The results showed that an increase in temperature caused a significant increase in the E-β-caryophyllene release rate. Neither relative humidity nor airflow, however, had a significant effect on the release of this semiochemical when relative humidity and wind speed ranged from 33% to 75% and from 6.61 x 10-4 m·s-1 to 2.05 x 10-2 m·s-1, respectively. The isotherm curves obtained were characteristic of food products and biopolymer materials. The isotherm shapes were not modified by the incorporation of the semiochemical into alginate beads, and showed an important increase in water content when relative humidity values exceeded 85%. Fortunately, this water content increase did not affect bead size, which facilitates the calculation of E-β-caryophyllene release. Conclusions. The present study shows for the first time the impact of the three main climatic factors on the release of E-β-caryophyllene from alginate beads. It allows learning more about how these biological control devices operate in order to optimize future field trials.

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Section: Effects Of Temperature Relative Humidity and Wind Speed On E...supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Impact of climatic factors on the release of E-β-caryophyllene from alginate beads

Daems¹,

Béra²,

Lorge³

et al. 2016

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“…The performance of a synthetic pheromone in the field could be negatively affected by multiple factors. For example, temperature, light and humidity could all alter the chemical composition of a pheromone blend (Nielsen et al, 2019; Zhu et al, 2015). For these reasons, care must be taken to guarantee that the chemistry of the synthetic pheromone blend does not degrade over time.…”

Section: Common Patterns Knowledge Gaps and Future Prospectsmentioning

confidence: 99%

Chemical and visual ecology of the Symphyta

Guignard

Slippers

Allison

2022

Agri and Forest Entomology

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1. The Symphyta is the most basal sub-order of the Hymenoptera and includes the woodwasps, horntails and sawflies, many of which are pests. Adults are generally short-lived and as a result males and females experience strong selection to rapidly find a mate and females to find oviposition sites. Mate-searching typically relies on visual and olfactory stimuli such as sexually dimorphic morphology (i.e., body parts used in signalling) and pheromones.2. Here we review the available literature on the chemical and visual ecology of the Symphyta with potential for use in survey and detection programmes. Stimuli reviewed include but are not limited to sex pheromones, larval defensive compounds, plant kairomones and colour preferences. 3. Sex pheromones are known for 19 species of Symphyta and show shared evolutionary patterns in chemistry, production site and ecological role.4. In general, sex pheromones in the Symphyta are female-produced, oxidized cuticular hydrocarbons and yellow traps capture more individuals than other colours, although exceptions do exist. More work is needed to expand on these and identify new patterns in the visual and chemical ecology of the Symphyta.

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“…Las tasas de emisión de volátiles resultan también afectadas por las variaciones en temperatura y por las características fisicoquímicas de los mismos como solubilidad, volatilidad y difusividad (Holopainen et al, 2013). En condiciones ambientales y controladas, las tasas de liberación de semioquímicos en dispensadores incrementan a medida que aumenta la temperatura del ambiente (Zhu et al, 2015). De hecho, la temperatura y el tipo de dispensador pueden ser utilizados para predecir la funcionalidad y el tiempo de vida útil de los semioquímicos en programas de manejo integrado de plagas (Zhu et al, 2015).…”

Section: Efecto De Factores Abióticos En Las Señales Químicas Que Median Interacciones Tritróficasunclassified

“…En condiciones ambientales y controladas, las tasas de liberación de semioquímicos en dispensadores incrementan a medida que aumenta la temperatura del ambiente (Zhu et al, 2015). De hecho, la temperatura y el tipo de dispensador pueden ser utilizados para predecir la funcionalidad y el tiempo de vida útil de los semioquímicos en programas de manejo integrado de plagas (Zhu et al, 2015).…”

Section: Efecto De Factores Abióticos En Las Señales Químicas Que Median Interacciones Tritróficasunclassified

Ecología química de interacciones entre plantas, insectos y controladores naturales de plagas herbívoras

Acevedo¹

2020

El Control Natural De Insectos en El Ecosistema Cafetero Colombiano

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Measurement of semiochemical release rates with a dedicated environmental control system

Cited by 12 publications

References 15 publications

Impact of climatic factors on the release of E-β-caryophyllene from alginate beads

Impact of climatic factors on the release of E-β-caryophyllene from alginate beads

Chemical and visual ecology of the Symphyta

Ecología química de interacciones entre plantas, insectos y controladores naturales de plagas herbívoras

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