frass

简明释义

英[fræs]美[fræs]

n. 幼虫的粪便；蛀屑

英英释义

单词用法

同义词

反义词

例句

1.Field tests showed that females gnawed significantly fewer oviposition scars on Pinus massoniana trees treated with hexane extracts of larval frass than on the control trees.

林间驱避试验结果说明，幼虫虫粪的己烷提取物处理过的树干上的刻槽数明显少于对照树干上的刻槽数，二者具有极显著差异；

2.Field tests showed that females gnawed significantly fewer oviposition scars on Pinus massoniana trees treated with hexane extracts of larval frass than on the control trees.

林间驱避试验结果说明，幼虫虫粪的己烷提取物处理过的树干上的刻槽数明显少于对照树干上的刻槽数，二者具有极显著差异；

3.Frass of longhorned beetle larvae plays an important role in natural enemies searching for their cerambycid hosts.

天牛幼虫排出的虫粪所释放的挥发性物质成为天敌搜寻天牛所在微栖境的重要化学信息物质。

4.The number of emergence holes and frass holes in weeping willows on both Banks of Qinhuai river are investigated.

调查了外秦淮河两岸垂柳上光肩星天牛羽化孔、排粪孔的分布情况。

5.Frass of long-horned beetle larvae plays an important role in natural enemies searching for their cerambycid hosts.

长角甲虫幼虫的部分在寻找天敌的天敌中起着重要的作用。

6.The gardener noticed that the plants were infested with caterpillars, leaving behind small piles of frass 虫粪 on the leaves.

园丁注意到植物被毛虫侵扰，叶子上留下了小堆的frass 虫粪。

7.While inspecting the wooden beams, the inspector found evidence of wood-boring insects due to the presence of frass 虫粪 around the holes.

在检查木梁时，检查员发现由于孔周围有frass 虫粪的存在，证明了木材蛀虫的迹象。

8.The entomologist explained that frass 虫粪 can be an important indicator of pest activity in a garden.

昆虫学家解释说，frass 虫粪可以作为花园中害虫活动的重要指标。

9.After a thorough search, we found traces of frass 虫粪 that indicated a possible termite infestation.

经过彻底搜索后，我们发现了可能表明白蚁侵扰的frass 虫粪的痕迹。

10.The biologist collected samples of frass 虫粪 to study the diet of the larvae.

生物学家收集了frass 虫粪样本，以研究幼虫的饮食。

作文

In the world of entomology, the study of insects, there are many fascinating terms that describe various aspects of these creatures and their behaviors. One such term is frass, which refers to the excrement of insects, particularly those that feed on plant material. Understanding frass can provide insights not only into the life cycle of insects but also into the health of ecosystems. Frass is often found in the nests of caterpillars or the burrows of beetles, where it serves as a telltale sign of insect activity. When we think about frass, it might seem unappealing at first glance. However, this organic matter plays an essential role in the environment. For instance, frass contributes to soil fertility. As insects consume leaves and other plant materials, they break them down in their digestive systems, turning them into nutrient-rich waste. This process enriches the soil, promoting healthy plant growth. Hence, while frass may be considered waste from an insect's perspective, it is a valuable resource for the ecosystem. Moreover, frass can serve as a food source for other organisms. Many small creatures, including fungi and bacteria, thrive on frass. These microorganisms play a crucial role in nutrient cycling, breaking down organic matter and releasing nutrients back into the soil. This symbiotic relationship highlights the interconnectedness of life forms within an ecosystem, where even the waste produced by insects can support the growth of other species. In gardening and agriculture, frass has gained attention for its potential benefits as a natural fertilizer. Some gardeners use insect frass to enrich their soil, taking advantage of the nutrients it contains. This practice aligns with the growing trend towards sustainable agriculture, where natural inputs are preferred over synthetic fertilizers. By incorporating frass into their gardening practices, cultivators can enhance soil health while minimizing environmental impact. Interestingly, frass can also provide clues about pest populations. Entomologists and farmers often monitor frass levels to assess the presence of certain insect species. For example, an increase in frass from caterpillars might indicate an outbreak that could harm crops. By understanding the patterns associated with frass, effective pest management strategies can be developed, allowing for timely interventions that protect plants without resorting to harmful chemicals. In summary, while frass may initially appear to be merely a byproduct of insect activity, its significance extends far beyond that. It plays a vital role in nutrient cycling, supports various organisms, and can even aid in sustainable agricultural practices. As we continue to study insects and their interactions with the environment, recognizing the importance of frass can help us appreciate the intricate web of life that sustains our ecosystems. By valuing every component, even something as seemingly insignificant as frass, we can foster a deeper understanding of nature and promote healthier environments for future generations.

在昆虫学的世界中，研究昆虫的术语有很多，这些术语描述了这些生物及其行为的各个方面。其中一个术语是frass，指的是昆虫的排泄物，特别是那些以植物材料为食的昆虫。理解frass不仅可以提供对昆虫生命周期的洞察，还可以了解生态系统的健康状况。Frass通常可以在毛虫的巢穴或甲虫的洞穴中找到，它是昆虫活动的明显迹象。 当我们想到frass时，乍一看可能会觉得不太吸引人。然而，这种有机物在环境中扮演着重要角色。例如，frass有助于土壤肥力。当昆虫吞食叶子和其他植物材料时，它们在消化系统中将其分解，转化为富含营养的废物。这个过程丰富了土壤，促进植物的健康生长。因此，从昆虫的角度来看，尽管frass被视为废物，但它实际上是生态系统中的宝贵资源。 此外，frass还可以作为其他生物的食物来源。许多小生物，包括真菌和细菌，都以frass为生。这些微生物在养分循环中发挥着至关重要的作用，分解有机物并将养分释放回土壤。这种共生关系突显了生态系统内生命形式之间的相互联系，即使是昆虫产生的废物也能支持其他物种的生长。 在园艺和农业中，frass因其作为天然肥料的潜在好处而受到关注。一些园丁使用昆虫frass来丰富土壤，利用其所含的营养成分。这一做法与可持续农业日益增长的趋势相一致，在这种趋势下，自然输入被优先考虑，而非合成肥料。通过将frass纳入园艺实践，种植者可以增强土壤健康，同时最小化对环境的影响。 有趣的是，frass还可以提供有关害虫种群的线索。昆虫学家和农民常常监测frass水平，以评估某些昆虫物种的存在。例如，毛虫的frass增加可能表明会对作物造成伤害的爆发。通过理解与frass相关的模式，可以制定有效的害虫管理策略，从而及时采取干预措施，保护植物而不依赖有害化学品。 总之，尽管frass最初看起来仅仅是昆虫活动的副产品，但其重要性远不止于此。它在养分循环中发挥着重要作用，支持各种生物，甚至可以帮助可持续农业实践。随着我们继续研究昆虫及其与环境的相互作用，认识到frass的重要性可以帮助我们欣赏维持生态系统的复杂生命网络。通过重视每一个组成部分，甚至是看似微不足道的frass，我们可以加深对自然的理解，并为未来几代人促进更健康的环境。