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首页> 外文期刊>Journal of Arboriculture >Will subterranean termites consume landscape mulches?
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Will subterranean termites consume landscape mulches?

机译：地下白蚁会食用地膜吗？

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Organic tree-based mulches provide many benefits to a landscape, yet recently, questions about whether they could harbour or be a source of food for termite colonies have arisen in the USA. In a series of 2 no-choice food experiments, this study investigated whether termites (Reticulitermes virginicus, R. flavipes) would consume 6 landscape mulches: cypress (Taxodium distichum), eucalyptus (Eucalyptus grandis), melaleuca (Melaleuca quinquenervia), pine bark (Pinus elliottii, P. taeda), pine straw (needles of P. elliottii), and a utility pruning mulch, and 5 woods: pine sapwood (P. elliottii), cypress heartwood and sapwood, and melaleuca heartwood and sapwood. In the wood experiments, termites consumed pine and cypress sapwood but did not consume the cypress heartwood or melaleuca sapwood or heartwood. In the pine and cypress sapwood, 64% to 77% of the termites survived, while melaleuca and cypress heartwood had fewer than 15% live termites. In Experiment 1, termites ate more of the utility mulchthan any other mulch. In Experiment 2, termites consumed all mulches except melaleuca, which was the least desirable food in both experiments. Correlations with chemical characteristics were significant for both nitrogen and phosphorus (r=0.91 and 0.96),showing that termites preferred mulches with higher N and P concentrations. In both experiments termite consumption was also correlated with 1-year decomposition of mulches in another study. Because termites ate most mulches, further investigation is necessary to determine whether landscape mulches around building foundations could harbour or support termite colonies.
机译：有机树基覆盖物为景观提供了许多好处，但是最近，在美国已经出现了有关它们是否可以藏匿或成为白蚁殖民地食物来源的问题。在一系列的2个非选择食物实验中，该研究调查了白蚁（Reticulitermes virginicus，R. flavipes）是否会食用6种景观覆盖物：柏（Taxodium distichum），桉树（Eucalyptus grandis），美乐家（Melaleuca quinquenervia），松树皮（Pinus elliottii，P。taeda），松草（P. elliottii的针）和一个实用的修剪覆盖物，以及5种木材：松材（P. elliottii），柏心材和边材，以及千层材和边材。在木材实验中，白蚁消耗了松树和柏材边材，但没有食用柏木心材或千层材边材或心材。在松树和柏树边材中，白蚁存活的占64％至77％，而千层和柏树心材的活白蚁少于15％。在实验1中，白蚁吃的效用覆盖物比其他任何覆盖物都要多。在实验2中，白蚁消耗了所有覆盖物，而白千层是两个实验中最不希望的食物。氮和磷均与化学特性相关（r = 0.91和0.96），表明白蚁更喜欢N和P浓度较高的覆盖物。在两个实验中，在另一项研究中，白蚁的消耗也与覆盖物的1年分解有关。由于白蚁覆盖了大多数覆盖物，因此有必要进行进一步调查以确定建筑物基础周围的景观覆盖物是否可以容纳或支撑白蚁群落。

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