尽管如此，罗根强调说在试验阶段昆虫被寄生虫传染的几率比自然环境下要高很多，被传染的蚊子比例也高许多。

However, Rasgon stressed that in the lab work the insects were infected with a higher amount of the parasite than occurs in nature, and a larger proportion of the mosquitoes were infected.

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对中国野生葡萄资源的17个种或变种，共73个株系根围寄生线虫的种类和密度进行了系统的调查与鉴定。

Species and densities of parasitic nematodes were systematically investigated from the rhizosphere soil of 73 clones which belong to 17 species of wild grapes native to China.

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列当属植物一种列当属寄生草，开紫色或黄色花、长有不含叶绿素的鳞状小叶，列当属植物生长在各种植物的根上。

Any of various parasitic herbs of the genus Orobanche, having purplish or yellowish flowers and small scalelike leaves that lack chlorophyll. Broomrape grows on the roots of various plants.

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