该类型泡桐抗病的主要机制是抗传毒的媒介昆虫之故。
The mechanism of disease resistance of this type is that it resists insect vector.
有翅蚜迁飞与蔬菜病毒流行的关系及阻断蚜虫传毒的途径等问题。
Therefore, main viruses of vegetable crop by aphid transmission and main aphid vectors, characteristic of transmission of the virus diseases by aphid, the relationship between flight…
炼苗期烟草苗床是传毒介体有翅蚜着落的靶子中心，是烟田蚜传病毒病的主要初侵染源，为防治烟草蚜传病毒病的关键时期。
During the tobacco hardening period bed of tobacco seedling was the falling target of alate aphids and was the main resource of tobacco virus spread by aphids.
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