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Smyth, Rebecca R.; Hoffmann, Michael P.

doi:10.1023/a:1024824025210

Cited by 40 publications

(26 citation statements)

References 36 publications

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“…There was also no evidence that plant volatiles themselves or differential synergism with aggregation pheromone affect host plant attraction. While attraction to volatiles (especially from damaged tissue) is widespread in aggregating beetles (Loughrin et al, 1996(Loughrin et al, , 1997Bolter et al, 1997;Sun et al, 2010), our result is consistent with previous work that constitutive and induced cucumber volatiles were unattractive to A. vittatum (Smyth and Hoffmann, 2003). Further, the consistent density-dependent attraction of conspecifics to both C. pepo subspecies when infested with male beetles indicates that volatiles from both subspecies had either equal positive effects or were neutral.…”

Section: Beetle Attraction To Plant Chemistry Pheromones In Host Locationsupporting

confidence: 91%

Attack and aggregation of a major squash pest: Parsing the role of plant chemistry and beetle pheromones across spatial scales

Brzozowski

Gardner

Hoffmann

et al. 2020

Journal of Applied Ecology

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Section: Beetle Attraction To Plant Chemistry Pheromones In Host Locationsupporting

confidence: 91%

Attack and aggregation of a major squash pest: Parsing the role of plant chemistry and beetle pheromones across spatial scales

Brzozowski

Gardner

Hoffmann

et al. 2020

Journal of Applied Ecology

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“…The high amino acid sequence similarity between CtenOBP7, CtenOBP13 and AmalOBP3, as well as the binding affinity of AmalOBP3 with two molecules that we showed to be attractive for the insect and the high expression level of CtenOBP7 and CtenOBP13 provide the basis for our hypothesis that in C. tenebrionis these OBPs may be involved in the recognition of (Z)-3-hexenol and 3-methyl-1-butanol. Furthermore, the higher expression of CtenOBP7 and CtenOBP13 in antennae than in the whole body suggests that these OBPs may play important roles in the detection of general odorants such as the host plant volatiles as reported in other insect species (Landolt, 1997; Smyth and Hoffmann, 2003). Moreover, 5 of the 14 identified CtenOBPs shared high amino acid identities (45–68%) with A. planipennis OBPs at NCBI.…”

Section: Discussionmentioning

confidence: 84%

Chemical Ecology of Capnodis tenebrionis (L.) (Coleoptera: Buprestidae): Behavioral and Biochemical Strategies for Intraspecific and Host Interactions

et al. 2019

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This study focuses on several aspects of communication strategies adopted by adults of the Mediterranean flat-headed root-borer Capnodis tenebrionis (Coleoptera: Buprestidae). Morphological studies on the structures involved in mate recognition and acceptance revealed the presence of porous areas in the pronota in both sexes. These areas were variable in shape and size, but proportionally larger in males. The presence of chaetic, basiconic, and coeloconic sensilla in the antennae of both males and females was verified. Bioassays revealed stereotyped rituals in males and the involvement of female pronotal secretions in mate recognition and acceptance. During the mating assays, the female’s pronotum was covered by a biologically inert polymeric resin (DenFil TM ), which prevented males from detecting the secretions and from completing the copulation ritual. The use of the resin allowed for the collection of chemical compounds. GC-MS analysis of the resin suggested it may be used to retain compounds from insect body surfaces and revealed sex-specific chemical profiles in the cuticles. Since adult C. tenebrionis may use volatile organic compounds (VOCs) emitted from leaves or shoots, the VOC emission profiles of apricot trees were characterized. Several volatiles related to plant-insect interactions involving fruit tree species of the Rosaceae family and buprestid beetles were identified. To improve understanding of how VOCs are perceived, candidate soluble olfactory proteins involved in chemoreception (odorant-binding proteins and chemosensory proteins) were identified using tissue and sex-specific RNA-seq data. The implications for chemical identification, physiological and ecological functions in intraspecific communication and insect–host interactions are discussed and potential applications for monitoring presented.

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“…Then females came. Whether males produced a sex or an aggregation pheromone to attract female and male congeners is not known (24)(25)(26)(27). Bruce et al (27) identified a sex pheromone, but there were no further reports on the effect of the identified compound.…”

Section: Discussionmentioning

confidence: 99%

Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

2021

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The aims of the study were to understand the physiological and phenological relationship between Bruchus rufimanus and Vicia faba in the perspective of IPM strategies. V. faba, an important food resource for humans and livestock is the main host plant of B. rufimanus. Adults feed on the pollen, females lay eggs on pods, and larvae develop into the seeds. Pending the blooming phase, the weevil may feed on the pollen from wild plants. Depending on the sowing date, the phenological time lag should lead the plant parts, most utilized by the weevil, less or more available during the key life stages of the pest. The aims of the study were therefore (1) to assess the impact of the sowing date (i.e., cultivars) on the phenological relationship between B. rufimanus and V. faba, and (2) to identify alternative pollen resources during the vegetative phase. Insects were collected weekly on two cultivars: winter-sown and spring-sown fields. Ovarian development, fecundity, and diet were monitored using dissected adults. Results showed that immature adults colonized the blooming winter-sown field and then 2 weeks later, the blooming spring-sown field. Sexual maturity of the weevils is related with V. faba pollen consumption. The sexual maturity of females increased with the growing density of flowers and the first pods were quickly covered with eggs. In spring-sown field, first pods grew 19 days later, while collected females in winter sown field had already laid most of their eggs. Feeding tests were carried using flowers collected from plants growing close to the fields: wild chervil, oilseed rape and wild Prunus. All this pollen were consumed by the weevils. The study showed a perfect synchrony between the host and the pest. Late sowing date and control of the early blooming wild plants surrounding the crops might reduce the attacks in field beans. More broadly, the study helps to understand the eco-ethology of the insect in cultivated areas.

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Cited by 40 publications

References 36 publications

Attack and aggregation of a major squash pest: Parsing the role of plant chemistry and beetle pheromones across spatial scales

Attack and aggregation of a major squash pest: Parsing the role of plant chemistry and beetle pheromones across spatial scales

Chemical Ecology of Capnodis tenebrionis (L.) (Coleoptera: Buprestidae): Behavioral and Biochemical Strategies for Intraspecific and Host Interactions

Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

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