Reevaluation of the sex pheromone of the lesser date moth, Batrachedra amydraula, using autosampling SPME-GC/MS and field bioassays

Levi−Zada, Anat; Sadowsky, Avraham; Dobrinin, Svetlana; David, Maayan; Ticuchinski, Tamir; Fefer, Daniela; Greenberg, Amnon; Blumberg, D.

doi:10.1007/s00049-012-0115-9

Cited by 16 publications

(21 citation statements)

References 8 publications

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“…The date palms were 10−17 m in height and planted in a grid of 9 m spacing between trees. Each of four delta pheromone traps baited with 1 mg of active sex pheromone components (Levi−Zada et al., , , ) was placed 25 m diagonally from each corner inside the date orchard located in the Arava Valley, Israel (29°56′31″N, 35°4′42″E). An additional four traps were placed 100 m and four traps 200 m outside the plantation in the desert.…”

Section: Methodsmentioning

confidence: 99%

“…In this study, we are mainly concerned with insect herbivores that are well known to have high affinities for specific host plants in agricultural or forestry systems (e.g., Byers, 1989;Knolhoff & Heckel, 2014;Landolt & Phillips, 1997;Levi−Zada et al, 2013;Zehnder & Trumble, 1984). However, our approach presented below can be applied to any mobile animal exhibiting patch habitat preference, such as caribou (Mason & Fortin, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Index of host habitat preference explored by movement‐based simulations and trap captures

Byers

Sadowsky

Levi−Zada

2018

Journal of Animal Ecology

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Animal species likely have different strengths of host habitat preference (HHP) that might be characterized by a standardized index ranging from 0 (no preference) to 1 (maximum preference). We hypothesized that in some species, HHP may result from individuals dispersing out of the host habitat having a probability of turning back at the boundary, or after entering host habitat by reducing speed or increasing size of turning angles. Computer simulations of individuals moving between various sized patches of host and nonhost habitat were conducted based on these three behaviours hypothesized to affect HHP. In the rebounding model, simulations resulted in equilibria of animal numbers inside and outside of host habitat that depend on sizes of these areas, initial number and the rebounding probability. Curvilinear regression of simulation results suggested an equation that predicted numbers in the host habitat and was solved for rebounding probability. A modified equation that sampled population densities (e.g., insect pheromone trap catches) inside and outside host habitat areas gave the rebounding probability, an index of HHP, without requiring the sizes of the areas. Simulations with traps and moving animals verified that the modified equation could predict the index correctly. The modified equation also estimates an index of HHP from sampled densities due to speed reductions and a combination of this and rebounding. Changes in angular turning size upon entering host habitat, however, did not affect habitat preference. Using pheromone trap captures, we found that the lesser date moth Batrachedra amydraula has a HHP for date Phoenix dactylifera plantations of 0.96. Host habitat preference indexes also were calculated from sampled insect densities reported in the literature. The new index of HHP is useful to characterize habitat patches of many organisms and aid understanding of animal spatial distributions and speciation processes. In addition, the index can be applied in studies of invasive species, trap crops of pest insects and conservation management.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Index of host habitat preference explored by movement‐based simulations and trap captures

Byers

Sadowsky

Levi−Zada

2018

Journal of Animal Ecology

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“…A dose–response test of LDM pheromone was performed in the field to find the appropriate bait that attracted large numbers of male moths and also was efficient in use of the pheromone. The LDM pheromone consists of a ternary blend of Z 5–10:Ac: Z 5–10:OH (Bedoukian, Danbury, USA, 98% isomeric purity): Z 4, Z 7–10:Ac (from our stock, Levi-Zada et al , 2013) in a 2:2:1 ratio. Grey rubber septa (West & Co., Lionville, PA) were impregnated with either 0.1, 0.5, 1, 2 or 10 mg pheromone (each dose n = 5) dissolved in n -hexane with 0.05 mg BHT antioxidant (Sigma, Rehovot, Israel).…”

Section: Methodsmentioning

confidence: 99%

“…The problem was due to the difficulty of rearing the moth on an artificial diet (Blumberg, 2008) and to the extremely small amount of pheromone released by the female. However, these problems were circumvented by using the recently developed technique of Sequential SPME/GCMS Analysis (SSGA), which is sensitive to circadian-released volatiles and enabled the identification of the LDM pheromone from only a few calling females (Levi-Zada et al , 2011, 2013, 2014). LDM pheromone is comprised of three components: Z 5-decenyl acetate (Z5–10:Ac), Z 5-decen-1-ol (Z5–10:OH) and (Z4,Z7)-4,7-decadien-1-acetate ((Z4,Z7)-10:Ac) in a ratio of 2:2:1, respectively.…”

Section: Introductionmentioning

confidence: 99%

Monitoring and mass-trapping methodologies using pheromones: the lesser date moth Batrachedra amydraula

Levi−Zada¹,

Sadowsky

Dobrinin³

et al. 2017

Bull. Entomol. Res.

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The lesser date moth (LDM) Batrachedra amydraula is a significant pest of date palm fruits. Previously, detection and monitoring of the pest was inaccurate due to high costs of sampling with lifting machines. We report a practical system for detection and monitoring of LDM based on pheromone traps and relevant models. Dose-response experiments with LDM pheromone traps indicated a 1 mg lure is optimal for monitoring. Delta traps with adhesive covering their entire inner surface gave the highest captures while trap colour was unimportant. Sampling pheromone traps throughout the night indicated male flight began at 1:00-2:00 and reached a peak 2 h before sunrise. Monitoring traps exposed all year long in Israel revealed three generations with different abundance. Trapping transects in a date plantation indicated interference from a monitoring trap became minimal at distances >27 m away. Inter-trap distances closer than this may lower efficiency of monitoring and mass trapping in control programs. Our estimate of the circular effective attraction radius (EARc) of a 1 mg delta trap for LDM (3.43 m) shows this bait is among the most attractive compared with baits for other insects. We developed encounter-rate equations with the pheromone trap EARc to model the interplay between population levels, trap density and captures that are useful for detection of invasive LDM and its control by mass trapping. The integrated methodologies are applicable to many pest species.

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“…traps (Levi-Zada et al, 2011, 2012Al-Jorany et al, 2015). The Lesser Date Moth larvae attack inflorescences and newly set green fruits.…”

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confidence: 99%

Chemical control of the Lesser Date Moth, Batrachedra amydraula (Lepidoptera: Batrachedridae)

Javadzadeh

Hosseini-Gharalari

2017

Acta Phytopathologica et Entomologica Hungarica

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The Lesser Date Moth, Batrachedra amydraula (Lepidoptera: Batrachedridae), is a key pest of date palms in silos and storages. The efficacy of aluminium phosphide (Phostoxin® tablet 55%) @ 5 t/m 3 and magnesium phosphide (Degesch® plates 56%) @ 2 p/30 m 3 were assessed against this pest in Iran date silos based on a completely randomized block design. Based on Henderson-Tilton formula, on the third day after treatment, both treatments resulted in 100% mortality. Application of magnesium phosphide and aluminium phosphide can be a suitable substitution for methyl bromide, which has just been banned in many countries.

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Reevaluation of the sex pheromone of the lesser date moth, Batrachedra amydraula, using autosampling SPME-GC/MS and field bioassays

Cited by 16 publications

References 8 publications

Index of host habitat preference explored by movement‐based simulations and trap captures

Index of host habitat preference explored by movement‐based simulations and trap captures

Monitoring and mass-trapping methodologies using pheromones: the lesser date moth Batrachedra amydraula

Chemical control of the Lesser Date Moth, Batrachedra amydraula (Lepidoptera: Batrachedridae)

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