Detection of beetle damage in forests by X-ray CT image processing

Cruvinel, P. E.; Naime, J. de M.; Borges, Miguel de Aboim; Macedo, Álvaro; Zhang, Aijun

doi:10.1590/s0100-67622003000500017

Cited by 8 publications

(6 citation statements)

References 6 publications

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“…X-ray CT has also been used to detect termite or beetle damage in wood [6][7][8][9][10]. For example, X-ray CT was used to visualize the gallery system of two drywood termite species, Cryptotermes secundus [6] and Incisitermes minor [7], and the oak platypodid beetle Platypus quercivorus [8] developed in wood.…”

Section: Introductionmentioning

confidence: 99%

“…For example, X-ray CT was used to visualize the gallery system of two drywood termite species, Cryptotermes secundus [6] and Incisitermes minor [7], and the oak platypodid beetle Platypus quercivorus [8] developed in wood. It was also used to image the bodies of the Asian longhorn beetle Anophophora glabripennis [9] and the anobiid beetle Priobium cylindricum [10] in wood. We, therefore, conducted this study to non-destructively observe the boring process of D. minutus larvae inside infested bamboo specimens using a microfocus X-ray CT system.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of larval growth process and bamboo consumption of the bamboo powder-post beetle Dinoderus minutus using X-ray computed tomography

2015

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The bamboo powder-post beetle Dinoderus minutus is a major pest of felled bamboo in Japan. In this study, X-ray computed tomography (CT) was utilized to non-destructively trace the movement of the larvae of D. minutus inside infested bamboo specimens and to evaluate the bamboo consumption of the larvae. The infested specimens, which had been enclosed with adult D. minutus beetles, were scanned using a microfocus X-ray CT system every 2 to 5 days. Larvae and other stages of the beetles were clearly recognizable in the CT images with a voxel size of 61.9 lm, and they were distinguishable from the bamboo, insect tunnels, and frass. The larvae were traced until pupation, and the length and volume of their tunnels were measured to evaluate their bamboo consumption. The tunnel length and volume bored by one larva was estimated to be 0.98 mm and 1.06 mm 3 (0.70 mg of oven-dry mass) per day within the average observation period of 22 days, respectively, and the active larval period was estimated to be 39 days in our experimental conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of larval growth process and bamboo consumption of the bamboo powder-post beetle Dinoderus minutus using X-ray computed tomography

2015

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“…There had been previous studies on the survey of hidden-lifestyle arthropods in non-invasive ways (Cruvinel et al 2003;Pavlović et al 2018), but our experimental investigation supplies new data due to the novel approximation as to the location of the larvae as well as their 3D-rendered images. The employed method is suitable for determining the position of the developing larvae and it can provide data for the extent and volume of the cavities triggered by L. festiva.…”

Section: Discussionmentioning

confidence: 98%

X-ray based computed tomography, a non-invasive approach in order to assess the damage caused by Lamprodila festiva of hidden lifestyle

Keszthelyi¹,

Sipos²,

Csóka³

et al. 2021

Plant Prot. Sci.

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The cypress jewel beetle Lamprodila (Palmar) festiva is a wood-boring pest posing a major threat to the phytosanitary conditions of several coniferous trees. Its unprecedented European expansion has triggered serious plant protection concerns in several new habitats. Parts of Chamaecyparis lawsoniana injured by L. festiva were collected and analysed by computed tomography in order to study the dimensions of the cavities caused by L. festiva larvae as well as the larval positions. It is concluded that computer tomography representing a non-invasive approach is a promising tool for the visual depiction of the position and the physical parameters of the cavities formed. According to our experimental data, the penetration into the cypress caused by larvae and, inherently, its depth depends on the diameter of the branch. Additionally, the developing larvae appeared to keep distance from each other, which also depended on the diameter of the attacked branch. Our approach provides new data to the biological traits of the species. The main benefit that our imaging method furnishes is the exact, stress-free measurement method of the hidden developing stages. Its additional advantage is the indirect pest identification, which is based on the predetermined pest-specific damage characters.

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“…In addition, X-ray detection based on X-ray autoradiography can also act as an auxiliary tool for longhorn beetle quarantine in wood import and export. Through this method, longhorn beetle larvae and the amount of wood damage can be directly observed; however, equipment is too heavy to be used in the field, and X-rays pose a risk of harm to humans [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Reconstruction of Monochamus alternatus Galleries Using CT Scans

Yang

Gao

Wang

et al. 2022

Insects

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As a vector of pine wood nematode disease, Monochamus alternatus is wood-boring, cryptic, and extremely difficult to control—features that have made them a disastrous problem. In this study, we present a method of scanning the galleries of Monochamus alternatus using CT (computed tomography) technology to obtain their systematic structure via 3D (three-dimensional) reconstruction, so as to clarify the gallery types and their structural parameters. TLC (thin-layer chromatography) scanning on wood segments damaged by M. alternatus was performed using a 128-row spiral CT GE Revolution EVO to obtain 64-layer CT scanned images. From the scanned images, we were able to clearly identify the beetle larvae and their galleries. The galleries were clearly delineated from the peripheral xylem, except for parts that were blocked by a frass–feces mixture, which were slightly blurred. Three-dimensional reconstruction of the galleries showed that most of the gallery types were C-shaped, and a few were S-shaped or Y-shaped. There was only one larva per gallery, and the galleries were separate. The vicinity of the entrance hole and the anterior part of the pupal chamber were blocked with a frass–feces mixture. There were no significant differences among the galleries’ parameters, such as the width of the entrance holes, tunneling depth, vertical length, blockage length and volume, total length of the galleries, and boring volume. With MIMICS (Materialise’s interactive medical image control system) image processing software, the images of each layer were made into a composite image, providing an effective way to visualize the 3D distribution of galleries. Using the methodology outlined in this study, both a single gallery structure and the spatial distribution of multiple galleries of M. alternatus can be shown, and the specific parameters of galleries can also be accurately calculated, which provides new ideas and methods for carrying out ecological and scientific research and precise prevention and control techniques of M. alternatus.

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Detection of beetle damage in forests by X-ray CT image processing

Cited by 8 publications

References 6 publications

Evaluation of larval growth process and bamboo consumption of the bamboo powder-post beetle Dinoderus minutus using X-ray computed tomography

Evaluation of larval growth process and bamboo consumption of the bamboo powder-post beetle Dinoderus minutus using X-ray computed tomography

X-ray based computed tomography, a non-invasive approach in order to assess the damage caused by Lamprodila festiva of hidden lifestyle

Three-Dimensional Reconstruction of Monochamus alternatus Galleries Using CT Scans

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