论文部分内容阅读
为明确棕榈蓟马成虫在日光温室的分布特征,2011—2012年,在山东省济南市采用植株调查和蓝板诱集方法研究了其成虫在日光温室菜椒上的种群动态和空间分布。结果表明,自4月中旬,棕榈蓟马种群数量逐渐上升,6月中旬达种群高峰,平均虫量最高6.02头/花。蓝板对棕榈蓟马成虫的诱集量7:00~15:00逐渐增多,13:00~15:00是活动高峰,平均诱集数量占全天的29.42%,之后逐渐减少。空间上,棕榈蓟马成虫数量由西向东逐渐减少,平均诱集数量比例从21.58%逐渐减少到6.93%;由南向北逐渐增加,南边、中间、北边蓝板诱集数量比例分别为21.48%、27.30%和51.22%;垂直方向上,在菜椒植株上部的棕榈蓟马成虫数量(76.58%)显著高于中部(21.77%)和下部(1.65%)。因此,日光温室棕榈蓟马防治的关键期是4月中旬,关键位置为日光温室西部、北部菜椒,喷药时间以早上或傍晚为宜。
In order to clarify the distribution characteristics of adults of Thrips tabaci in solar greenhouse, the population dynamics and spatial distribution of adult adults on pepper in greenhouse were studied in 2011-2012 with plant survey and blue trap method in Jinan City, Shandong Province. The results showed that from the middle of April, the population of Thrips palmi gradually increased, reaching the peak in mid-June with the highest average of 6.02 heads per flower. The trap of blue thrips increased gradually from 7:00 to 15:00, and peaked from 13:00 to 15:00. The average trap number accounted for 29.42% of the whole day, then gradually decreased. Space, the number of adult thrips gradually decreased from west to east, the average number of trap population decreased gradually from 21.58% to 6.93%; from south to north gradually increased, south, middle and north of the number of blue trap were trapped 21.48% , 27.30% and 51.22% respectively. In the vertical direction, the adult population of Thrips palmiri in the upper part of the plant was significantly higher than that in the middle (21.77%) and the lower part (1.65%). Therefore, the key period of thrips prevention and control in greenhouse is in mid-April, the key position is the western part of solar greenhouse, peppercorns in the north, spraying time in the morning or evening is appropriate.