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- Comprehensive Control of Main Insect Pest of Rice 水稻主要病虫害综合治理
- Byctiscus ulmi is one of the main insect pests in Weeping Elm of Xining region. The insect pest is happened a generation in a year in Xining region. 14.8 ovums were borthed by a female pest. 榆叶象甲是西宁地区垂榆上的主要害虫之一;该虫在西宁地区每年发生一代;每头雌虫平均产卵量为14.;8粒;产卵部位集中于叶背;卵期8d左右;幼虫历期25d左右;老熟后在叶柄基部作茧化蛹;蛹期16d左右;从9月下旬起成虫在枯枝落叶层内进入越冬状态。
- Main Insect Pest of Maize and Prevention and Control Technique 玉米主要病虫害及其防治技术
- The population density of the main insect pests peaks from June to September,the population quantity of the main dominant species changes discontinuously from season to season. 主要优势种的数量随季节变动表现出不连续特点。
- A Primary Research on the Distribution Law of the Main Insect Pest to T. Repens 白三叶草主要虫害发生规律的初步研究
- Main Insects Pest of Chinese Cabbage and its Control Measures 大白菜主要虫害及防治措施
- An insect pest fatal to cotton had struck the crop. 棉花遭受了一种致命的虫害。
- Main Insect Pests Feed on the Rapid-Growing Poplar and Its Control 速生杨树的主要虫害及防治技术
- The severe frost kill off most of the insect pest. 严霜杀死了大多数害虫。
- Main Insect Pests of Blackberry and Its Control in Nanjing 南京地区黑莓主要害虫及其防治措施
- Chemical control techniques to main insect pests of malus pumila 苹果主要害虫化学防治技术
- Main insect pest 主虫害
- Review on Cultivation and Insect Pest Control of Rhododendron L. 杜鹃花培育及常见病虫害防治技术研究进展。
- Erythroneura melia Kuoh is a serious insect pest on chinaberry. 苦楝斑叶蝉是苦楝树上的重要害虫。
- Most serious threat to herbarium sheets is insect pest, the protection and control of which constitute one of the main works in herbarium management. 摘要虫害是植物标本保藏的最大威胁。防虫一直是植物标本馆管理工作的重点。
- Dent, D. Insect Pest Management (2nd Edition). CABI Publishing. 2000. 江静波等。无脊椎动物学。北京:高等教育出版社,1992。
- Dendrolimus punctatus is the most destructive forest insect pest in China. 马尾松毛虫一直是我国最严重的森林食叶害虫之一。
- Investegat on Main Insect Pests and Their Occurrence Situations of Garden Trees in the Northern Suburb of Xining City 西宁北郊主要园林树种害虫发生危害情况的调查
- The insecticide will kill off the insect pests. 这情形剂可消灭害虫。
- It has been noticed that soluble sugar and protein were accumulated in polluted plants and that is one of the main causes accounting for severer insect pest problem. 试验发现,在受污染的植物体内有糖分与蛋白质积累现象,这是造成虫害加重的主要原因之一。