A wind-oriented sticky trap for evaluating the behavioural response of the leaf-beetle<i>Diabrotica speciosa</i>to cucurbit extracts

Walsh, Guillermo Cabrera; Mattioli, Federico; Weber, Donald C.

doi:10.1080/09670874.2014.897771

Cited by 3 publications

(4 citation statements)

References 33 publications

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“…Very few experiments with long‐lived insects have tested the response of different groups although they can be really important in line with potential mass trapping of the insect species (Cabrera Walsh et al. ) and especially M. galloprovincialis (Sanchez‐Husillos et al. ).…”

Section: Discussionmentioning

confidence: 99%

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How do sex and sexual maturation influence the response of Monochamus galloprovincialis to host odours?

Giffard

David

Joubard

et al. 2017

J Applied Entomology

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Finding the right host plant for feeding and reproduction is crucial for herbivorous insects. Usually they need both visual and olfactory cues to locate and colonize their host plants, but the respective role of the two types of stimuli is difficult to disentangle. Model plants mimicking the shape and colour of natural hosts, combined with odours dispensers, are relevant tools for this purpose. We used dummy pines and cut branches of natural pines to investigate host attraction in Monochamus galloprovincialis, the insect vector of the pine wood nematode in Europe. We compared the behavioural response of males and females, sexually mature or immature, in a large climatic chamber and in an olfactometer. Immature females were significantly attracted by the sole odours released by pines. Immature males and mature males and females needed a combination of visual and olfactory cues to find the host tree. These findings suggest that beetles use both visual and chemical cues to locate pine trees but that relevant stimuli likely differ between beetles of different sex and sexual maturation status. Our results question the implementation of precautionary clear‐cuts around infested trees for limiting the spread of PWN.

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Section: Discussionmentioning

confidence: 99%

“…; Radžiute and Būda ) and within taxonomic groups between sexes (see, e.g., Cabrera Walsh et al. ). They have been observed for M .…”

Section: Introductionmentioning

confidence: 99%

How do sex and sexual maturation influence the response of Monochamus galloprovincialis to host odours?

Giffard

David

Joubard

et al. 2017

J Applied Entomology

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“…Several pest management tactics have been implemented based on the phagostimulatory effect of cucurbitacins on diabroticine beetles. These include lacing bitter cucurbit roots or fruit with an insecticide [128,143,144], using the roots or fruits in traps for monitoring and collecting Luperini [10,[145][146][147][148], bitter cucurbit juice formulations combined with fungal pathogens [149], and in toxic baits [150][151][152][153][154][155]. Cucurbitacins have also been included as baits in traps for monitoring purposes [10,145,147,156,157].…”

Section: Semiochemicalsmentioning

confidence: 99%

“…Field experiments in Argentina showed that only males of D. speciosa were attracted from a distance to cucurbitacins (ca. 20 m), whereas for females these compounds acted only as arrestants, and to a lesser degree than for males [11,148]. This indicates that control or monitoring devices reliant on distance attraction to bitter cucurbit extracts would function exclusively on D. speciosa males.…”

Section: Semiochemicalsmentioning

confidence: 99%

Biology and Management of Pest Diabrotica Species in South America

Walsh¹,

Ávila

Cabrera

et al. 2020

Insects

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The genus Diabrotica has over 400 described species, the majority of them neotropical. However, only three species of neotropical Diabrotica are considered agricultural pests: D. speciosa, D. balteata, and D. viridula. D. speciosa and D. balteata are polyphagous both as adults and during the larval stage. D. viridula are stenophagous during the larval stage, feeding essentially on maize roots, and polyphagous as adults. The larvae of the three species are pests on maize, but D. speciosa larvae also feed on potatoes and peanuts, while D. balteata larvae feed on beans and peanuts. None of these species express a winter/dry season egg diapause, displaying instead several continuous, latitude-mediated generations per year. This hinders the use of crop rotation as a management tool, although early planting can help in the temperate regions of the distribution of D. speciosa. The parasitoids of adults, Celatoria bosqi and Centistes gasseni, do not exert much control on Diabrotica populations, or show potential for inundative biocontrol plans. Management options are limited to insecticide applications and Bt genetically modified (GM) maize. Other techniques that show promise are products using Beauveria bassiana and Heterorhabditis bacteriophora, semiochemical attractants for monitoring purposes or as toxic baits, and plant resistance.

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Field Attraction of Striped Cucumber Beetles to a Synthetic Vittatalactone Mixture

Weber

2018

Journal of Economic Entomology

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The striped cucumber beetle, Acalymma vittatum (F.) (Coleoptera: Chrysomelidae), is a key pest of cucurbits in eastern North America, rapidly colonizing young plantings and vectoring bacterial wilt of cucurbits. Its aggregation pheromone has been identified and synthesized stereospecifically, but has not been field tested to date. Here, we present field bioassays of this pheromone, using mixed vittatalactone made with a novel and cost-efficient semispecific synthesis. This mixture of eight stereoisomers of (2R,3R)-vittatalactone proved highly attractive to both sexes of striped cucumber beetle, using two different trap types and a pilot attract-and-kill combination with watermelon containing the diabroticine feeding stimulant cucurbitacin-E-glycoside, under field conditions in cucurbit vegetable plantings. Availability of mixed vittatalactones could enable highly effective and specific management of striped cucumber beetle.

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A wind-oriented sticky trap for evaluating the behavioural response of the leaf-beetleDiabrotica speciosato cucurbit extracts

Cited by 3 publications

References 33 publications

How do sex and sexual maturation influence the response of Monochamus galloprovincialis to host odours?

How do sex and sexual maturation influence the response of Monochamus galloprovincialis to host odours?

Biology and Management of Pest Diabrotica Species in South America

Field Attraction of Striped Cucumber Beetles to a Synthetic Vittatalactone Mixture

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