查询词典 Dominica

Flushing distances of both Pluvialis dominica and Calidris temminckii under the condition of one person walking were less than those under the condition of two persons walking, which indicated that two species of bird were susceptive on the disturbance type including more persons.

这说明，两种鸟类对人数较多的干扰类型更为敏感。在一人行干扰条件下和二人行干扰条件下，金斑鸻的惊飞距离均显著小于青脚鹬的惊飞距离。

After repeated experiments, the optimum parameters were found: the temperature in the grain warehouse was(25±3)℃; The CO2 gas density was 25%～35%, Rhizoptha Dominica Fabricius will be dead in 72 h and Sitophilus Oryzae Linnaeu will be dead in 48 h.

通过多次试验，找出了实验室试验的最佳参数：温度为(25±3)℃；CO2气体浓度为25%～35%；谷蠹杀虫保持时间为72 h以上；米象杀虫保持时间为48 h。

Through the simulation experiment in room 7 month-long observations, indicated three optimal pesticide preventing and controlling effect against Sitophilus zeamais Motschusky and Rhizopertha dominica Fabricius achieve 100% to the jade.

通过室内模拟试验7个月的观察，结果表明三种优选配方对玉米象和谷蠹的防治效果达到100％。

Validate the activities of three plant matter to grain stored insect Sitophilus zeamais Motschusky and Rhizopertha dominica Fabricius.

研究结果如下： 1、验证三种植物性物质对仓储害虫玉米象、谷蠹的生物活性。

The effects of interspecific competition on the population dynamics of four insect grain Insecp pests (Sitophilus zeamais, Rhizopertha dominica, Tribolium castaneum and Cryptolestes ferrugineus) was studied at 30 ℃, 75％ relative humidity. A regression analysis of the population dynamics was conducted.

在30 ℃、75％相对湿度条件下研究种间竞争对玉米象、谷蠹、赤拟谷盗和锈赤扁谷盗4种主要储粮害虫种群动态的影响，并对种群动态进行回归分析。

By using the experiment equipments designed and manufactured by us, the CO2 gas was charged to suffocate and kill the grain insects(Rhizoptha Dominica Fabricius and Sitophilus Oryzae Linnaeu), to protect the grain.

利用自行设计的试验装置，充入CO2气体使储粮害虫窒息死亡，以达到杀灭粮食害虫的目的。

When fumigating for 16 hours under temperature of 15～10 Oryzaephilus surinamensis LD_(50)=1.4125 g/m~3,Rhizopertha dominica LD_(50)=1.972 g/m~3,Sitophilus zeamais Motschulsky LD_(50)=2.512 g/m~3,Martiunas demestoides Chevr.

在温度15~10℃下密闭熏蒸16 h，供试虫种的致死中量为：锯齿谷盗LD50=1.4125 g/m3，谷蠹LD50=1.972 g/m3，玉米象LD50=2.512 g/m3，甜食虫LD50=3.715 g/m3，赤拟谷盗LD50=

It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.

主要研究结果如下：1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用，应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用，同时，二甲基二硫是很有潜力的仓储害虫防治熏蒸剂，要深入进行二甲基二硫控制有害生物的技术研究，以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。

TF primary extracts condensate used alone or used with the general stored grain chemistry protect pharmaceutical to get the experimental treatments. Adopt filter paper medicine membrane method and grain mixed medicine method to seeking TF plant single pharmaceutical and the extender, screen out two kinds of emulsion Basuling-1, Basuling-2 and one powder Basuling powder have better prevent and cure result to target pest Sitophilus zeamais Motschusky and Rhizopertha dominica Fabricius.

TF植物性物质单用或与常用的化学防护剂混配，采用滤纸药膜法和小麦拌药法对优选TF植物单剂和混配剂的筛选，筛选出了对靶标害虫玉米象和谷蠹有较好防治效果的乳油两种巴素灵1号、巴素灵2号和粉剂巴素灵粉。

Tribolium confusum and Rhyzopertha dominica. On the basis of the test. bulk grain treatment and surface treatment on the sacks of the stack were carried out. The results showed that INSECTO has good efficacy against the three tested insects. The effect of 0. 1% dosage of INSECTO can compared with that of 10ppm fenitrothion. INSECTO is more stable t...

在此基础上，又分别进行了围囤散装试验和包装粮垛麻袋表面喷洒防虫试验，结果表明，INSEC－TO对3种受试害虫均有较好的防治效果，以0.1％剂量拌和粮食其效果与10ppm杀螟松基本相同，但化学性质比杀螟松稳定且无化学药剂的毒性残留，对人畜更为安全。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。