20世纪60年代末期,当斯里兰卡繁荣的椰子果园被潜叶昆虫侵扰时,一种从新加坡引进的寄生幼虫将这种害虫控制住了。
In the late 1960s, when Sri Lanka's flourishing coconut groves were plagued by leaf-mining hispides, a larval parasite imported from Singapore brought the pest under control.
可下载餐饮商家害虫控制规范。
You can download the pest control in food businesses fact sheet.
综述了植物源害虫控制剂研究与开发成就。
This paper provides an overview of the achievements in the research and development of plant-based insect control agents.
白蚁和害虫控制服务,互动的虚拟房子和孩子的乐趣领域。
Termite and pest control services, with interactive virtual house and kids fun area.
一些蝙蝠甚至被用来做害虫控制实验,使棉花种植园里的棉铃虫数量呈减少的态势。
Some bats have even been utilised in pest control experiments, keeping boll moth Numbers down in cotton plantations.
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
In this paper predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
天敌和害虫在空间上的同域性和时间上的同步性说明了天敌对害虫控制作用较明显。
The sympatry in space and the synchrony in time indicated that these natural enemies had high efficiency to control their preys.
一家美国家居用品公司和东方宾馆的管理层开了一场技术座谈会,讨论使用工业害虫控制产品对付蟑螂。
An American household products company had given a technical seminar to the Dong Fang Hotel management on the use of industrial pest control products to deal with the cockroach problem.
进一步来说,这些理论和方法在濒危物种的保护、“保护廊道”的构建、害虫控制以及传染病消除等方面都能发挥出重要的作用。
Furthermore, those of theories and methods play an important role in endangered species protection, conservation corridors construction, controlling pests and eliminating human infectious diseases.
本文在扼要综述现有杀虫剂或杀虫活性物质的作用机制的基础上,提出消化毒剂的概念,并讨论了消化毒剂的特点及天然作物作为害虫控制剂的可能性。
The paper reviews the mechanism of action of the insecticides or insecticidal compounds. The concept of digestive poison and the characteristics of digestive poison are discussed.
为控制害虫,人们持续且不计后果地使用人工合成化学品,对农作物和人类健康造成危害,事实证明会产生相反的效果。
The continuous and reckless use of synthetic chemicals for the control of pests which pose a threat to agricultural crops and human health is proving to be counter-productive.
根据农民的报告,试验转基因种子的人与没有试验的人相比,每英亩用于控制害虫的杀虫剂用量只是稍微少一点。
According to farmers' report, the amount of insecticide needed per acre to control insect pests was only slightly lower for those who tried the modified seed than for those who did not.
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。
The cane toad was introduced back in 1935 to control an insect pest that was destroying Australia's sugarcane plantations.
奥格贝说,专家们正在研究如何控制这种害虫的危害,并防止其蔓延,直到现在,这种情况基本上还没有得到控制。
Ogbeh says experts are investigating how to control the pest's damage and prevent its spread, which has gone largely unchecked until now.
真菌主要是在土壤环境中开始对昆虫的攻击,在花园,温室以及户外,人们经常采用真菌来控制农业害虫。
Fungi that attack insects are present in soils worldwide, and they are used in gardens, greenhouses, and open fields to control agricultural pests.
更多地了解蜘蛛如何能长途旅行能帮助科学家控制农田害虫。
Better understanding how spiders travel long distances could help scientists control farmland pests.
我们的研究只是表明有机农业可以使农业害虫的天敌群落更加平衡,可以更好控制农业害虫。
What our study suggests is that organic agriculture is promoting these more balanced natural enemy communities and they may have better, organic pest control.
它的一个优点是它提供了一种控制由土壤以引发疾病和害虫侵害的方法。
One good thing about it is, it offers a means of control over soil-borne diseases and pests.
2010年的版本控制了九中地上害虫和七种土壤害虫,还抑制了其他三种。
The 2010 version controlled nine above-ground pests and seven in the soil, and suppressed three more.
产量不断增加,害虫得到控制,贫瘠的土壤也补充了肥料。
Yields were rising, pests appeared under control and fertilisers were replenishing tired soil.
公司于2004年推出了下一代控制了15种地上害虫中的九个,还控制了八种土壤害虫中的七个。
In 2004 the company introduced a successor that controlled nine of the 15 above-ground pests and seven of the eight that lived in the soil.
完全控制了15个常见的“地面“害虫中的四个,如玉米螟虫,地老虎和stinkbugs,部分抑制其他三种害虫。
It fully controlled four of 15 common "above-ground" corn pests like corn borers, cutworms and stinkbugs, and partially suppressed three more.
完全控制了15个常见的“地面“害虫中的四个,如玉米螟虫,地老虎和stinkbugs,部分抑制其他三种害虫。
It fully controlled four of 15 common "above-ground" corn pests like corn borers, cutworms and stinkbugs, and partially suppressed three more.
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