| 摘要: |
| 【目的】明确葡萄二黄斑叶蝉（Arboridia koreacola Matsumura（1932））在陕西关中地区的生物学特性及种群消长规律，为探索其综合防治技术提供科学依据。【方法】于2012-05-08在陕西关中不同地区对葡萄二黄斑叶蝉进行田间普查和寄主调查。于2013-04-11-10-01对葡萄二黄斑叶蝉种群消长动态进行田间系统调查，并结合室内饲养观察，分析种群发生数量、虫态、龄期，确定其生物学特性和各世代发生规律。【结果】葡萄二黄斑叶蝉在陕西关中地区1年发生3代，以成虫在园内外落叶、杂草、土缝中越冬，翌年4月中旬于葡萄展叶期开始取食危害。除第1代若虫、成虫发生量大且较集中外，其后各世代重叠严重。5月下旬至7月上旬为第1代成虫发生期，6月上旬至8月上旬为第2代成虫发生期，7月下旬至翌年4月中旬为第3代成虫发生期。10月中下旬气温降低，种群数量迅速减少，成虫开始越冬。成虫有黄白色和红褐色两型，越冬成虫均为黄白色，若虫共5龄。【结论】葡萄二黄斑叶蝉种群动态随着时间的变化而变化，这与种群的聚集扩散、取食习性有关，其成虫的形态特征与体色差异均可用于该虫的鉴定。 |
| 关键词: 葡萄二黄斑叶蝉 生物学特性 发生规律 关中地区 |
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| 基金项目:陕西省自然科学基金项目（2012JM3002） |
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| Biological characteristics and population dynamics of grape leafhopper,Arboridia koreacola Matsumura in Guanzhong area |
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HU Dan,YAN Xiao-ying,HUANG Min
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| Abstract: |
| 【Objective】This study aimed at clarifying the biological characteristics and population dynamics of grape leafhopper Arboridia koreacola Matsumura in Guanzhong area to provide scientific basis for exploring the comprehensive prevention and control technology.【Method】Fields general investigation and host investigation of A.koreacola were conducted at different areas in Guanzhong plain,Shaanxi from May to August in 2012.The population dynamics was investigated in the fields combined with indoor feeding observation from April 11 to October 1 in 2013 to analyze the amount,development stages,and instars,and clarify the biological characteristics and population dynamics.【Result】There were three generations of grape leafhopper A.koreacola in Guanzhong area in one year.Adults overwintered by hiding in fallen leaves,weeds and soil seam,and moved into vineyards at budding stage of grape in mid-April of next year.Except the first generation of nymph and adult that occurred with large numbers and concentrated relatively,the later generations overlapped seriously.Late May to early July was the occurrence period for the first generation of adults,early June to early August was the occurrence period for the second generation,while late July to next mid-April was for the third generation.The population reduced rapidly when the temperature decreased from late October and adults began to overwinter.The body colors of adults had two types:Yellow white and reddish brown and overwintering adults were all yellow-white.The nymph had five instars.【Conclusion】The population of A.koreacola dynamically changed over time,which were associated with the gather,diffusion and feeding habits.The morphological characteristics and the differences of body colors can be used for species identification. |
| Key words: Arboridia koreacola Matsumura biological characteristics population dynamics Guanzhong area |
