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The surface morphology structures of Cybister bengalensis were observed and depicted by stereo-microscope and scanning electron microscopy.The results indicated that three typical concaves and universal heaves exist.

采用体视显微镜、扫描电镜技术观察并描述了黄缘真龙体壁表面各部位的形态结构特征,发现了3种典型的凹陷和普遍存在的凸起,了解了其三维结构,分析了凹陷与龙水生生活的关系。

Eight methods were used to analyze the spatial pattern of Bemisia tabaci eggs on the Ligustrum lucidum. The results indicated that the pattern was aggregated distribution and the basic component of distribution was colony.

8种方法用以分析烟粉卵在女贞上的空间分布型,结果表明:烟粉卵在大叶女贞上呈聚集分布,分布的基本成分是个体群。

Eight methods were used to analyze the spatial pattern of Bemisia tabaci eggs on the Ligustrum lucidum.The results indicated that the pattern was aggregated distribution and the basic component of distribution was colony.

8种方法用以分析烟粉卵在女贞上的空间分布型,结果表明烟粉卵在大叶女贞上呈聚集分布,分布的基本成分是个体群。

Precocene could induce macropter, the more macropterous adult were found the higher titer of preconece was applied to the larvae, and the macropter inducement was more effective at the 3rd instar than at the 4th instar, the macropterous adults rates were 100% or 86.67% respectively when S. furcifera were treated by 10μg/μl or 100ng/μl preconece at the 3rd instar.

早熟素具有明显的长翅化效应,随着处理浓度的增高,被处理的白背飞若虫形成的长翅型成虫数也逐渐增加,且早熟素在3龄期处理对白背飞长翅诱导作用强于在4龄期进行的处理,如在3龄期处理时,10μg/μl和100ng/μl的处理组长翅型成虫比率分别高达100%和86.67%。

The ratio between nonsynonymous and synonymous substitutions for CP gene is 0.092 which indicated the negative selective pressure for amino acid changes. No distinct correlation was found among isolates in different years or different isolates in one year in a

灰飞的RAPO聚类分析结果与病毒CP基因的系统发育分析结果具有一些相似性,初步暗示了RSV与灰飞很可能是共同进化的。

The ratio between nonsynonymous and synonymous substitutions for CP gene is 0.092 which indicated the negative selective pressure for amino acid changes. No distinct correlation was found among isolate s in different years or different isolates in one year in a

灰飞的 RAPO聚类分析结果与病毒CP基因的系统发育分析结果具有一些相似性,初步暗示了 RSV与灰飞很可能是共同进化的。

There were many adults and nymphae of psocids when the temperature over 15℃ and almost nil under 5~2℃.

在粮温15℃以上时,可以检测到较多的书成虫,当粮温降到5~2℃左右时,检测到的书密度几乎为0。

The number of the adults and nymphae of psocids at the surface of the stored wheat was as many as that at the inner of stored wheat when the temperature was 15℃, the number of the psocids at the surface of the stored wheat would exceed the psocids number at the inner when the temperature exceed 20℃.

结果表明,嗜虫书在小麦堆的种群变化因粮温的上升而增大,并表现为15℃左右时粮堆表层和粮面下100cm处数量相近,粮温升达到22℃以上后,粮堆表层的书数量明显多于粮堆内部。

An ape of the family Pongidae.

科的模式属;床

It was different in the occurring time and quantity of dominant species: in early spring, there were more Psyllidaes in the dense planted area, but more main pests Opatrums and Scarabeidaes and their nature enemies Carabidaes and Spiders in the low planted area. After autumn, the quantity of Psyllidae was the largest in the low planted area, but the least in the dense planted area.

群落个体数稀植区在大部分时间内均高于其它2区。3个区的主要优势害虫及其天敌在发生时间和数量上有一定差异,早春密植区木发生数量较大,稀植区中砂潜、金龟子类害虫以及步甲、蜘蛛类天敌数量相对丰富,入秋后稀植区木发生量最大,密植区最小。

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