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首页> 外文期刊>Plant Protection Science >Population dynamics of Chaetocnema tibialis Illiger and Phyllotreta vittula (Redtenbacher) on the weed Amaranthus retroflexus L. and cultivated Amaranthus caudatus L.
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Population dynamics of Chaetocnema tibialis Illiger and Phyllotreta vittula (Redtenbacher) on the weed Amaranthus retroflexus L. and cultivated Amaranthus caudatus L.

机译：杂草retro菜和栽培A菜上的小球藻（Chaetocnema tibialis Illiger）和菲竹（Phyllotreta vittula）（Redtenbacher）的种群动态。

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摘要

In 1995–1997, the population dynamics of the flea beetles Chaetocnema tibialis and Phyllotreta vittula, associated with Amaranthus retroflexus (wild species) and Amaranthus caudatus (cultivated species), were studied at the locality Nitra-Malanta (48°19`N, 18°09`E) in south-western Slovakia. On both plant species, the number of C. tibialis adults was usually very low until the beginning of July. During July the number of C. tibialis increased, but sooner on cultivated amaranth. An increased number of C. tibialis adults was observed on both amaranth species until the middle of September. The results showed that amaranth plants are a very important reservoir of C. tibialis during summer. P. vittula was a common flea beetle on amaranth during the whole summer, but its numbers never exceeded more than 10 adults per 25 plants. Low temperatures in winter had a negative effect on populations of C. tibialis on both amaranth species and also on populations of P. vittula on A. retroflexus. The lower the precipitation was in July, the higher were the populations of C. tibialis on both amaranth species and the populations of P. vittula on A. retroflexus.Keywords:Amaranthus; flea beetles; Chaetocnema; Phyllotretadownload PDF Impact factor (Web of Science – Thomson Reuters) 2016: 0.742
机译：在1995–1997年间，在Nitra-Malanta地区（48°19`N，18 °09`E）在西南斯洛伐克。在这两种植物上，直到7月初，胫骨梭菌的成虫数量通常很少。在7月份，胫骨梭菌的数量有所增加，但栽培的a菜则更快。直到9月中旬，在这两个a菜品种上都观察到了胫骨梭菌成虫的数量增加的情况。结果表明，a菜植物在夏季是非常重要的胫骨梭菌库。整个夏季，Pitt Vittula是on菜上的跳蚤甲虫，但每25株植物中的成虫数量从未超过10个。冬季的低温对a菜物种的胫球菌种群以及逆挠曲霉的v蛇种群均具有负面影响。七月份的降水量越少，a菜物种上的胫C虫种群数量和逆挠曲霉上的v蛇种群的数量就越高。跳蚤甲虫嗜油杆菌Phyllotretadownload PDF影响因子（Web of Science – Thomson Reuters）2016：0.742

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