| 吴秀花1, 杨 荣1, 刘丽英1, 任倩楠1, 郭永盛1, 陈 实2.白枸杞瘤螨的虫瘿特点、分布及对枸杞的危害[J].植物保护,2017,43(1):135-139. |
| 白枸杞瘤螨的虫瘿特点、分布及对枸杞的危害 |
| Characteristics and distribution of Aceria pallida galls in wolfberry canopy and its effects on host plant |
| 投稿时间：2016-01-18 修订日期：2016-03-21 |
| DOI： |
| 中文关键词: 枸杞瘿螨 虫瘿 分布 危害 |
| 英文关键词:Aceria pallida galls distribution damage |
| 基金项目:“十二五”农村领域国家科技支撑项目(2012BAD22B0303); 中央财政林业科技推广示范资金项目(内林推［2014］11) |
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| 中文摘要: |
| 本文调查了内蒙古托克托县白枸杞瘤螨为害引起的虫瘿在枸杞植株不同方向枝条, 不同相对位置枝条, 同一枝条上不同部位叶片上的分布, 及螨虫对枸杞叶片和果实造成的为害。结果表明, 白枸杞瘤螨有较重为害西北方向枝条的倾向。枸杞生长中后期, 虫瘿的分布多集中在植株的上、中部和枝条端部的嫩叶上。白枸杞瘤螨为害形成的虫瘿直径在1~7.5 mm之间, 不同大小虫瘿出现的频率呈正态分布, 直径2~4 mm的虫瘿占绝大多数。虫瘿直径与其内活螨数量有一定的相关性, 虫瘿直径小于4 mm时, 直径与其内活螨数量呈正相关趋势; 直径大于4 mm时, 呈负相关。受害叶的叶长、叶宽、叶面积及果实的纵径、横径、重量均显著减小, 受害叶的叶长、叶宽约为正常叶的3/4, 叶面积约为正常叶面积的1/2, 干果重量减少11.5%。 |
| 英文摘要: |
| Aceria pallida Keifer has been a major pest mite of Lycium spp. in the main wolfberry produce area of northwest China. The distribution of galls induced by A. pallida in wolfberry canopy was investigated and its effects on host plants were also estimated in Tuoketuo County, Inner Mongolia. The results showed that A. pallida tended to damage twigs in northwest direction heavily. In middle and late periods of plant growth of the year, most of the galls located in the middle and upper twigs in plant canopy generally and preferred the tender leaves at the end of twings. The galls had a diameter of 1 mm to 7.5 mm, which presented normal distribution, and 2 mm to 4 mm were in the majority. The quantity of live mites was positively correlated to the size of gall when its diameter was less than 4 mm, while negatively correlated when the diameter was more than 4 mm. Comparing to the normal individual, the length, width and area of damaged leaf were smaller, the vertical diameter, transect diameter and dried weight of wolfberry were lighter as well as. The length, width, leaf area and dried weight of wolfberry from damaged individuals approximately reduced by 25%, 50% and 11.5%, respectively. |
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