| 韩柏明;金大勇;吕龙石.苹果全爪螨的发育起点温度和田间消长规律研究[J].植物保护,2007,33(4):83-86. |
| 苹果全爪螨的发育起点温度和田间消长规律研究 |
| Threshold temperature for development and population dynamics of Panonychus ulmi Koch in fields |
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| DOI： |
| 中文关键词: 苹果全爪螨 发育起点温度 有效积温 种群密度 |
| 英文关键词:Panonychus ulmi Koch threshold temperature for development effective accumulative temperature population density |
| 基金项目: |
| 韩柏明;金大勇;吕龙石 |
| 延边大学农学院 龙井133400 |
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| 中文摘要: |
| 在5种不同温度条件下研究了苹果全爪螨(Panonychus ulmi Koch)的发育起点温度和有效积温,并探讨了吉林延边地区果园苹果全爪螨种群消长规律。结果表明,苹果全爪螨夏型卵发育起点温度是7.79℃,全世代有效积温是202.16日度,在延边地区可发生5~6代;延边地区果园苹果全爪螨种群密度在1年内出现2次高峰,第1次高峰出现在6月中下旬,第2次高峰出现在8月初。 |
| 英文摘要: |
| The threshold and effective accumulative temperature for development of Panonychus ulmi Koch were determined under five different temperature conditions,and their population dynamics in the orchards of Yanbian Area was studied as well.The results showed that the developmental threshold temperature for summer eggs and the effective accumulative temperature for the whole generation were estimated to be 7.79 ℃ and 202.16 degree-days,respectively,which means that P.ulmi could complete 5-6 generations per year in Yanbian Area, Jilin Province.Two population peaks appeared in a year in the orchards,with the first in the last 20 days of June and the next in the beginning of August. |
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