oidium

简明释义

英[əʊˈɪdɪəm]美[oˈɪdiəm]

n. 粉孢子

复 数 o i d i a

英英释义

单词用法

同义词

反义词

例句

1.The weather had exacerbated another problem by now: mildew, oidium and...... snails.

到现在，天气加剧了另一个问题：霉菌，粉泡菌和……蜗牛。

2.The weather had exacerbated another problem by now: mildew, oidium and...... snails.

到现在，天气加剧了另一个问题：霉菌，粉泡菌和……蜗牛。

3.The farmer noticed that the grapevines were affected by oidium, a type of fungal disease.

农民注意到葡萄藤受到白粉病的影响，这是一种真菌疾病。

4.To combat oidium, the vineyard owner applied a fungicide to the affected areas.

为了对抗白粉病，葡萄园主在受影响的区域喷洒了杀真菌剂。

5.Symptoms of oidium include white powdery spots on leaves and stems.

白粉病的症状包括叶子和茎上的白色粉末状斑点。

6.The research team studied the genetics of oidium to develop more resistant plant varieties.

研究小组研究了白粉病的遗传学，以开发更具抗性的植物品种。

7.In humid conditions, oidium can spread rapidly among crops.

在潮湿的条件下，白粉病可以迅速在作物中传播。

作文

In the world of botany and plant pathology, various types of fungi play significant roles in both the health and diseases of plants. One such fungus is known as oidium, which is a genus of fungi that can cause powdery mildew on a wide range of plants. Understanding oidium is crucial for gardeners, farmers, and anyone interested in plant care. This essay will explore the characteristics, effects, and management strategies related to oidium infections. Oidium fungi are characterized by their white, powdery appearance on the surfaces of leaves, stems, and flowers. This distinctive look arises from the fungal spores that proliferate on the plant's surface, creating a layer of mycelium and conidia. The presence of oidium can often be mistaken for other plant ailments, but its powdery nature sets it apart. Typically, oidium thrives in warm, dry conditions, making it particularly problematic in regions with such climates. The impact of oidium on plants can be quite severe. Infected plants may exhibit stunted growth, yellowing leaves, and reduced yield, which can be devastating for agricultural crops. For example, grapevines are particularly susceptible to oidium, which can affect the quality of grapes produced for wine. Similarly, many ornamental plants can suffer from oidium infections, leading to unsightly foliage and diminished aesthetic value. As such, recognizing and managing oidium is essential for maintaining healthy plants. Management of oidium involves several strategies. Cultural practices can help minimize the risk of infection; for instance, ensuring adequate air circulation around plants can reduce humidity levels, making conditions less favorable for oidium proliferation. Additionally, selecting resistant plant varieties can be an effective way to combat oidium, as some species have been bred to withstand this type of fungal attack. Chemical control measures are also available to manage oidium. Fungicides specifically designed to target powdery mildew can be applied to infected plants. However, it is essential to follow application guidelines carefully, as overuse of chemicals can lead to resistance and further complications in managing plant diseases. Organic options, such as sulfur or neem oil, can also be used as preventive measures against oidium. In conclusion, oidium is a significant fungal threat to a variety of plants, causing powdery mildew that can lead to serious health issues for the affected flora. Understanding the characteristics and life cycle of oidium is vital for effective management and prevention. By employing cultural practices, selecting resistant varieties, and using appropriate chemical controls, gardeners and farmers can mitigate the impact of oidium on their plants. Ultimately, awareness and proactive measures are key to protecting plant health against this pervasive fungal menace.

在植物学和植物病理学的世界中，各种类型的真菌在植物的健康和疾病中扮演着重要角色。其中一种真菌被称为oidium，它是一个真菌属，可以在广泛的植物上引起白粉病。理解oidium对园丁、农民以及任何对植物护理感兴趣的人来说都是至关重要的。本文将探讨与oidium感染相关的特征、影响和管理策略。 Oidium真菌的特点是在叶子、茎和花的表面形成白色粉状物。这种独特的外观源于在植物表面繁殖的真菌孢子，形成一层菌丝体和分生孢子。Oidium的存在常常会被误认为是其他植物疾病，但其粉状特性使其与众不同。通常，oidium在温暖、干燥的条件下繁盛，这使得它在气候如此的地区尤其成问题。 Oidium对植物的影响可能相当严重。受感染的植物可能表现出生长缓慢、叶子发黄和产量减少，这对农业作物而言是毁灭性的。例如，葡萄藤特别容易受到oidium的侵害，这可能影响用于酿酒的葡萄的质量。同样，许多观赏植物也可能遭受oidium感染，导致叶子不美观和审美价值降低。因此，识别和管理oidium对维持健康植物至关重要。 管理oidium涉及几种策略。文化实践可以帮助最小化感染风险；例如，确保植物周围有足够的空气流通可以降低湿度水平，使条件对oidium的繁殖不太有利。此外，选择抗性植物品种可以有效对抗oidium，因为一些物种已经被培育以抵御这种真菌攻击。 化学控制措施也可用于管理oidium。专门针对白粉病的杀真菌剂可以施用于受感染的植物。然而，遵循应用指南非常重要，因为过度使用化学品可能导致抗药性和进一步的植物病害管理问题。硫磺或Neem油等有机选择也可以作为预防措施来对抗oidium。 总之，oidium是对多种植物的重要真菌威胁，引起的白粉病可能导致受影响植物的严重健康问题。了解oidium的特征和生命周期对于有效管理和预防至关重要。通过采用文化实践、选择抗性品种和使用适当的化学控制，园丁和农民可以减轻oidium对其植物的影响。最终，提高意识和采取主动措施是保护植物健康免受这种普遍真菌威胁的关键。