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John A. Pickett - One of the best experts on this subject based on the ideXlab platform.
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Prospects for management of whitefly using plant Semiochemicals, compared with related pests
Pest management science, 2018Co-Authors: Stefanie Schlaeger, John A. Pickett, Michael A. BirkettAbstract:Whitefly (Hemiptera: Sternorrhyncha: Aleyrodidae) pests, including the tobacco whitefly, Bemisia tabaci, and the greenhouse whitefly, Trialeurodes vaporariorum, are important economically in agriculture. Whiteflies are controlled mainly by synthetic insecticides but resistance to these is evolving rapidly. A Semiochemical-based management strategy could provide an alternative to the use of insecticides, by exploiting natural volatile signalling processes to manipulate insect behaviour. Whitefly behaviour is affected by differences in plant odour blends. Selected compounds have been suggested as putative Semiochemicals, but in only a few studies have potential volatiles been characterized by electrophysiology or olfactometry. Application of antennal preparation methods from closely related families, the aphids (Hemiptera: Aphididae) and psyllids (Hemiptera: Psyllidae), may help to facilitate whitefly electroantennography. Behavioural bioassays are essential to identify the repellent or attractant effect of each Semiochemical. The relevance of Semiochemicals in whitefly management needs to be evaluated in the respective cultivation system. Although the value of Semiochemicals against whiteflies has not been demonstrated in the field, there is an emerging range of possible field applications and some promising prospects. Overall, the olfactory system of whiteflies needs to be elucidated in more detail. © 2018 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Semiochemical (Patent US 8221736 B2)
2012Co-Authors: J. A. Hick, John A. Pickett, Lester J. Wadhams, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behavior of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-β-ocimene, that stimulate foraging by parasitoids. It is an extremely benign compound having, to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
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development of Semiochemical attractants for monitoring bean seed beetle bruchus rufimanus
Pest Management Science, 2011Co-Authors: Toby J. A. Bruce, L. E. Smart, J.l. Martin, John A. PickettAbstract:BACKGROUND:Bruchus rufimanus is a serious pest of field beans. The objective here was to develop a Semiochemical-baited trapping system to facilitate monitoring of the pest. RESULTS: Volatile compounds that were electrophysiologically active with the antennae of B. rufimanus females were identified from headspace samples of Vicia faba flowers and from male B. rufimanus. Selected headspace samples and synthetic compounds were tested in olfactometer bioassays. The Semiochemicals were then formulated in lures for traps and evaluated in a field trapping experiment. Cone traps baited with a three-component blend of floral volatiles, releasing (R)-linalool (17.7 mg day−1), cinnamyl alcohol (0.4 mg day−1) and cinnamaldehyde (0.77 mg day−1), caught significantly more of both sexes of B. rufimanus than unbaited control traps. A male volatile, 1-undecene, was EAG active with female antennae. It was attractive to females in an olfactometer, indicating that it is a sex pheromone. However, in the field it only enhanced trap catches if it was released together with the floral volatiles. CONCLUSION: The blends of Semiochemicals identified were shown to be attractive in cone traps under field conditions. The prototype trapping system developed could be used as a monitoring tool to determine infestation levels of B. rufimanus in bean fields. Copyright © 2011 Society of Chemical Industry
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Semiochemical (Patent US 7820153 B2)
2010Co-Authors: A. J. Hick, John A. Pickett, Lester J. Wadhams, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behavior of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-β-ocimene, that stimulate foraging by parasitoids. It is an extremely benign compound having, to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
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Cis-jasmone As Semiochemical (Patent CA 2388964 C)
2009Co-Authors: Lester J. Wadhams, John A. Pickett, A. J. Hick, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behaviour of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-.beta.-ocimene. that stimulate foraging by parasitoids. It is an extremely benign compound having , to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
Johnathan A. Napier - One of the best experts on this subject based on the ideXlab platform.
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Semiochemical (Patent US 8221736 B2)
2012Co-Authors: J. A. Hick, John A. Pickett, Lester J. Wadhams, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behavior of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-β-ocimene, that stimulate foraging by parasitoids. It is an extremely benign compound having, to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
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Semiochemical (Patent US 7820153 B2)
2010Co-Authors: A. J. Hick, John A. Pickett, Lester J. Wadhams, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behavior of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-β-ocimene, that stimulate foraging by parasitoids. It is an extremely benign compound having, to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
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Cis-jasmone As Semiochemical (Patent CA 2388964 C)
2009Co-Authors: Lester J. Wadhams, John A. Pickett, A. J. Hick, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behaviour of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-.beta.-ocimene. that stimulate foraging by parasitoids. It is an extremely benign compound having , to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
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Semiochemical (Patent US 6890525 B2)
2005Co-Authors: A. J. Hick, John A. Pickett, Lester J. Wadhams, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behaviour of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-beta-ocimene, that stimulate foraging by parasitoids. It is an extremely benign compound having, to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
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Semiochemical (Patent US 2003/0109586 A1)
2003Co-Authors: John A. Pickett, Lester J. Wadhams, A. J. Hick, Johnathan A. NapierAbstract:cis-Jasmone has been discovered to be useful as a Semiochemical that changes the behaviour of insects and/or the physiology of plants. It has direct signalling roles with plant-feeding aphids, in attraction of aphid predators and parasitoids, and may act as an airborne signal inducing production of volatile plant Semiochemicals, including the monoterpene (E)-beta-ocimene, that stimulate foraging by parasitoids. It is an extremely benign compound having, to human beings, a pleasant aroma and gives a long-lasting effect after removal of the stimulus.
Michael A. Birkett - One of the best experts on this subject based on the ideXlab platform.
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Prospects for management of whitefly using plant Semiochemicals, compared with related pests
Pest management science, 2018Co-Authors: Stefanie Schlaeger, John A. Pickett, Michael A. BirkettAbstract:Whitefly (Hemiptera: Sternorrhyncha: Aleyrodidae) pests, including the tobacco whitefly, Bemisia tabaci, and the greenhouse whitefly, Trialeurodes vaporariorum, are important economically in agriculture. Whiteflies are controlled mainly by synthetic insecticides but resistance to these is evolving rapidly. A Semiochemical-based management strategy could provide an alternative to the use of insecticides, by exploiting natural volatile signalling processes to manipulate insect behaviour. Whitefly behaviour is affected by differences in plant odour blends. Selected compounds have been suggested as putative Semiochemicals, but in only a few studies have potential volatiles been characterized by electrophysiology or olfactometry. Application of antennal preparation methods from closely related families, the aphids (Hemiptera: Aphididae) and psyllids (Hemiptera: Psyllidae), may help to facilitate whitefly electroantennography. Behavioural bioassays are essential to identify the repellent or attractant effect of each Semiochemical. The relevance of Semiochemicals in whitefly management needs to be evaluated in the respective cultivation system. Although the value of Semiochemicals against whiteflies has not been demonstrated in the field, there is an emerging range of possible field applications and some promising prospects. Overall, the olfactory system of whiteflies needs to be elucidated in more detail. © 2018 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Differential preference of Capsicum spp. cultivars by Aphis gossypii is conferred by variation in volatile semiochemistry
Euphytica, 2011Co-Authors: João Gomes Costa, Michael A. Birkett, Edjane Vieira Pires, Alessandro Riffel, Ervino Bleicher, Antônio Euzébio Goulart Sant’anaAbstract:The aim of this study was to demonstrate that Capsicum spp. cultivars are differentially preferred by the cotton aphid, Aphis gossypii , and to investigate the role of volatile Semiochemicals in conferring differences in host preferences. Two preference assays were conducted in 2008 under greenhouse conditions. Fourteen different commercially available cultivars were grown in cages protected by an anti-aphid net, and were infested 60 days after planting, through the release of ten adult female A. gossypii per plant. The results showed that after a five-day infestation period, statistically significant differences in the mean number of A. gossypii between cultivars were observed, with Sweet Pepper Hybrid Green Belt (SPHGB) being one of the cultivars with the lowest number of A. gossypii per plant. To test the hypothesis that the preference of cultivars was associated with release of volatile, Capsicum spp-derived Semiochemicals, olfactometer behavior bioassays were conducted with A. gossypii , using volatile organic compounds (VOCs) collected from non-preferred SPHGB and preferred SPAB cultivars. A. gossypii was significantly repelled only by the VOCs of infested SPHGB. Furthermore, coupled gas chromatography-mass spectrometry (GC-MS) analysis of VOCs released by plants prior to, and after, A. gossypii infestation, revealed that the non-preferred SPHGB cultivar released nine additional compounds after infestation, including 6-methyl-5-hepten-2-one, a known plant defense Semiochemical involved in plant—aphid interactions. These data suggest that non-preferred cultivars releasing this Semiochemical have the potential to be used in breeding programs aimed at producing A. gossypii -resistant Capsicum spp. cultivars.
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electrophysiological and behavioural responses of the pollen beetle meligethes aeneus to volatiles from a non host plant lavender lavandula angustifolia lamiaceae
Arthropod-plant Interactions, 2008Co-Authors: Alice L. Mauchline, J. A. Pickett, Michael A. Birkett, C M Woodcock, Juliet L Osborne, W PowellAbstract:A Semiochemical based push-pull strategy for control of oilseed rape pests is being developed at Rothamsted Research. This strategy uses insect and plant derived Semiochemicals to manipulate pests and their natural enemies. An important element within this strategy is an understanding of the importance of non-host plant cues for pest insects and how such signals could be used to manipulate their behaviour. Previous studies using a range of non-host plants have shown that, for the pollen beetle Meligethes aeneus (Coleoptera: Nitidulidae), the essential oil of lavender, Lavandula angustifolia (Lamiaceae), was the most repellent. The aim of this study was to identify the active components in L. angustifolia oil, and to investigate the behaviour of M. aeneus to these chemicals, to establish the most effective use of repellent stimuli to disrupt colonisation of oilseed rape crops. Coupled gas chromatography-electroantennography (GC-EAG) and gas chromatography-mass spectrometry (GC-MS) resulted in the identification of seven active compounds which were tested for behavioural activity using a 4-way olfactometer. Repellent responses were observed with (±)-linalool and (±)-linalyl acetate. The use of these chemicals within a push-pull pest control strategy is discussed.
Jason D Bals - One of the best experts on this subject based on the ideXlab platform.
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a simple cost effective emitter for controlled release of fish pheromones development testing and application to management of the invasive sea lamprey
PLOS ONE, 2018Co-Authors: Michael C Wagner, James E Hanson, Trevor D Meckley, Nicholas S Johnson, Jason D BalsAbstract:Semiochemicals that elicit species-specific attraction or repulsion have proven useful in the management of terrestrial pests and hold considerable promise for control of nuisance aquatic species, particularly invasive fishes. Because aquatic ecosystems are typically large and open, use of a Semiochemical to control a spatially dispersed invader will require the development of a cost-effective emitter that is easy to produce, environmentally benign, inexpensive, and controls the release of the Semiochemical without altering its structure. We examined the release properties of five polymers, and chose polyethylene glycol (PEG) as the best alternative. In a series of laboratory and field experiments, we examined the response of the invasive sea lamprey to PEG, and to a partial sex pheromone emitted from PEG that has proven effective as a trap bait to capture migrating sea lamprey prior to spawning. Our findings confirm that the sea lamprey does not behaviorally respond to PEG, and that the attractant response to the pheromone component was conserved when emitted from PEG. Further, we deployed the pheromone-PEG emitters as trap bait during typical control operations in three Great Lakes tributaries, observing similar improvements in trap performance when compared to a previous study using mechanically pumped liquid pheromone. Finally, the polymer emitters tended to dissolve unevenly in high flow conditions. We demonstrate that housing the emitter stabilizes the dissolution rate at high water velocity. We conclude the performance characteristics of PEG emitters to achieve controlled-release of a Semiochemical are sufficient to recommend its use in conservation and management activities related to native and invasive aquatic organisms.
Francesca Romana Dani - One of the best experts on this subject based on the ideXlab platform.
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proteomic analysis of chemosensory organs in the honey bee parasite varroa destructor a comprehensive examination of the potential carriers for Semiochemicals
Journal of Proteomics, 2018Co-Authors: Immacolata Iovinella, Alison Mcafee, Guido Mastrobuoni, Stefan Kempa, Leonard J Foster, Paolo Pelosi, Francesca Romana DaniAbstract:Abstract We have performed a proteomic analysis on chemosensory organs of Varroa destructor, the honey bee mite, in order to identify putative soluble carriers for pheromones and other olfactory cues emitted by the host. In particular, we have analysed forelegs, mouthparts (palps, chelicera and hypostome) and the second pair of legs (as control tissue) in reproductive and phoretic stages of the Varroa life cycle. We identified 958 Varroa proteins, most of them common to the different organs and stages. Sequence analysis shows that four proteins can be assigned to the odorant-binding protein (OBP)-like class, which bear some similarity to insect OBPs, but so far have only been reported in some Chelicerata. In addition, we have detected the presence of two proteins belonging to the Niemann-Pick family, type C2 (NPC2), which have also been suggested as Semiochemical carriers. Biological significance: The mite Varroa destructor is the major parasite of the honey bee and is responsible for great economical losses. The biochemical tools used by Varroa to detect Semiochemicals produced by the host are still largely unknown. This work contributes to understand the molecular basis of olfaction in Varroa and, more generally, how detection of Semiochemicals has evolved in terrestrial non-hexapod Arthropoda. Moreover, the identification of molecular carriers involved in olfaction can contribute to the development of control strategies for this important parasite.
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proteomic analysis of chemosensory organs in the honey bee parasite varroa destructor a comprehensive examination of the potential carriers for Semiochemicals
bioRxiv, 2018Co-Authors: Immacolata Iovinella, Alison Mcafee, Guido Mastrobuoni, Stefan Kempa, Leonard J Foster, Paolo Pelosi, Francesca Romana DaniAbstract:The mite Varroa destructor is the major parasite of the honey bee and is responsible for great economical losses. The biochemical tools used by Varroa to detect Semiochemicals produced by the host are still largely unknown. We have performed proteomic analysis on chemosensory organs of this species in order to identify putative soluble carriers for pheromones and other olfactory cues emitted by the host. In particular, we have analysed forelegs, mouthparts (palps, chelicera and hypostome) and the second pair of legs (as control tissue) in reproductive and phoretic stages of the Varroa life cycle. We identified 958 Varroa proteins, most of them common to organs and stages. Sequence analysis shows that four proteins can be assigned to the odorant-binding protein (OBP)-like class, which bear some similarity to insect OBPs, but so far are only reported in some Chelicerata. In addition, we have detected the presence of two proteins belonging to the Niemann-Pick family, type C2 (NPC2), which have been suggested to act as Semiochemical carriers. This work contributes to elucidating the chemical communication systems in Varroa with the aim of understanding how detection of Semiochemicals has evolved in terrestrial non-hexapod Arthropoda. Data are available via ProteomeXchange with identifier PXD008679.
