木材中入侵性枯木白蚁短隐白蚁的无损检测

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Sociobiology Pub Date : 2022-12-28 DOI:10.13102/sociobiology.v69i4.7881
J. Mcdonald, C. Fitzgerald, B. Hassan, J. Morrell
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引用次数: 2

摘要

结构中可靠的干木材白蚁检测具有挑战性,但对有效管理至关重要。评价了一种基于微波的无损检测白蚁活动的方法。本研究评估了影响该设备可靠检测木材中短隐白蚁能力的因素。该设备显示出在自然感染的木板中成功检测到短双歧杆菌的可能性很高。该系统在最高灵敏度水平下使用时,97%的时间都能检测到白蚁,同时几乎不会产生假阳性。白蚁的数量不会影响检测能力,即使只有一只白蚁存在,也会产生可检测的信号。在突变木材物种中,检测成功率随着木材密度的增加和垂直于纹理的测试而降低。该设备在南方松(Pinus spp.)中检测到最大深度为45毫米的白蚁,但随着木材密度的增加,灵敏度下降,在密度更大的塔斯马尼亚橡树(Eucalyptus spp.),检测极限降至仅20毫米。该设备只能在38毫米厚的辐射松样品中检测到密度在392至511 kg/m3之间的白蚁。研究结果支持了微波可靠检测木材中短棒线虫的能力。
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Non-destructive Detection of an Invasive Drywood Termite, Cryptotermes brevis (Blattodea: Kalotermitidae), in Timber
Reliable drywood termite detection in structures is challenging but is critical for effective management. A microwave-based non-destructive method was evaluated for detecting termite activity. This study evaluated factors affecting the ability of this device to reliably detect Cryptotermes brevis in timber. The device displayed a high probability of successfully detecting C. brevis in naturally infested boards. The system detected termites 97% of the time when used at the highest sensitivity level, while producing few false positives. The number of termites did not affect detection ability, and detectable signals were produced even when a single termite was present. Detection success decreased with both increasing wood density and testing perpendicular to the grain in abrupt transition timber species. The device detected termites to a maximum depth of 45 mm in southern pine (Pinus spp.), but sensitivity declined with increased wood density with the detection limit declining to only 20 mm in denser Tasmanian oak (Eucalyptus spp). The device could only detect termites in samples with densities between 392 to 511 kg/m3 in 38 mm thick radiata pine samples. The results support the ability of microwaves to reliably detect C. brevis in timber.  
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来源期刊
Sociobiology
Sociobiology 生物-昆虫学
CiteScore
1.60
自引率
11.10%
发文量
28
审稿时长
3 months
期刊介绍: SOCIOBIOLOGY publishes high quality articles that significantly contribute to the knowledge of Entomology, with emphasis on social insects. Articles previously submitted to other journals are not accepted. SOCIOBIOLOGY publishes original research papers and invited review articles on all aspects related to the biology, evolution and systematics of social and pre-social insects (Ants, Termites, Bees and Wasps). The journal is currently expanding its scope to incorporate the publication of articles dealing with other arthropods that exhibit sociality. Articles may cover a range of subjects such as ecology, ethology, morphology, population genetics, physiology, toxicology, reproduction, sociobiology, caste differentiation as well as economic impact and pest management.
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