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- Title： Occurrence Rule and Control Measure of Main Diseases and Insect Pests on Liriope spicata(Thunb)Lour. 关键词：湖北麦冬;病虫害;发生规律;防治措施
- Occurrence Rule and Control Measure of Main Diseases and Insect Pests on Liriope spicata(Thunb)Lour. 与相似的文献。
- In this paper,influence factors of insect pest occurrence of urban green-land were studied. 为有效控制城市绿地害虫,对城市绿地虫害发生的影响因素进行了研究。
- The field practice mainly focused on the plots with frequent and serious pest occurrence, where half of the seedlings have died away. 实习主要集中在病虫害比较严重的地块里,那里半数的秧苗已经枯死。
- The gas occurrence rule is the techno-basement of the study on the gas emission rule and gas harm harness. 煤层瓦斯赋存状态是研究矿井瓦斯涌出规律和瓦斯灾害防治的技术基础。
- A meticulous observation on the biology and occurrence rule of Pachynematus itoi Okutani was conducted in Dunhua City, Jilin Province. 对伊藤厚丝叶蜂生物学、发生规律等方面进行了较为细致的研究。结果表明,伊藤厚丝叶蜂在吉林省1年3代,以预蛹在落叶层下越冬。
- insect pest occurrence characteristics 害虫发生特点
- Based on the analysis and conclusion of the occurrence rule and influential factors, the integrated control strategy of giving priority to agriculture, supplemented by other control was put forward. 通过对油菜菌核病的发生流行规律及影响因素进行分析和总结，提出了以农业防治为主，其它防治为辅的综合防治策略。
- Diseases and pests occurrence and their control of Cedrus deodara 雪松主要病虫害发生与防治
- The occurrence rules of rice planthopper in rice field with cultural crab was ascertained through systemic investigation and field census. 通过系统调查和大田普查相结合的方法，研究明确了养蟹稻田稻飞虱的发生规律。
- Pest Occurrence in Summer Pasture in Hefei and its Control 合肥地区夏季草坪主要病害的发生与防治
- Occurrence Rule and Precaution of Wheat Midge 小麦吸浆虫的发生规律及防治
- Study on Sexual Attractant in Pest Forecast and Occurrence Rule in Vegetable Crops 性引诱剂用于蔬菜害虫的预测预报和发生规律研究
- Occurrence Rules and Integrated Control of Pest on Storied Tobacco 贮烟害虫的发生及综合防治技术
- They use ultraviolet lamp to kill pests. 他们使用紫外线灯杀死害虫。
- Stores of grain are frequently attacked by pests. 储存的谷物经常受到害虫的破坏。
- The potato is vulnerable to several pests. 马铃薯易受几种害虫的侵害。
- The Ching court began to feel its rule threatened. 清廷开始感到自己的统治受到了威胁。
- But this does not rule out unofficial discussions. 但这并不排除进行非正式的讨论。
- Riots are of frequent occurrence in this province. 这省经常发生骚乱。
