1·The cane toad was introduced back in 1935 to control an insect pest that was destroying Australia's sugarcane plantations.
蔗蜍早在1935年就被引进,以控制一种破坏澳大利亚甘蔗种植园的害虫。
2·The mosquito is the most dangerous insect pest in the world, and man's oldest and deadliest killers.
蚊子是世界上最危险的害虫,也是人类最古老的宿敌和最致命的杀手。
3·Insect pest is one of the most important factors affecting high performance, good quality and safe production of vegetables.
害虫为害是影响蔬菜高效、优质、安全生产的重要问题。
4·The results showed: the peach borer has been one of the most important corn insect pest.
结果表明:桃蛀螟已成为玉米的主要害虫之一。
5·According to observation on harmful characteristics of main forest insect pest, control measures have been put forward.
并对主要林木害虫的危害特点进行了观察,提出了防治策略。
1·The system includes following subsystems as disease position diagnosis & harmless control, disease period diagnosis & harmless control, insect pest diagnosis & harmless control and so on.
系统主要包括病害部位诊断与无公害防治、病害时期诊断无公害防治、虫害诊断与无公害防治等子系统。
2·System based on grid current pulse change statistics, which can estimate the insect pest of severity.
系统通过对电网中电流脉冲的变化进行统计,从而能够初略估计出虫害的严重程度。