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This is particularly so when fumigating commodities which absorb large amounts of fumigant and for treatments conducted at low temperatures.

在被熏蒸的物品能够吸附大量熏蒸剂以及在低温下熏蒸时,尤其应该这样。

Fumigating is the most effective method to kill pests in grain depots. Phosphine is not only the safest fumigant under use, but also the only allowable fumigant in most countries.

熏蒸法是防治储粮害虫最为有效的手段,磷化氢是目前对人类而言最为安全的熏蒸剂,也是绝大多数国家唯一允许使用的熏蒸剂。

Gas concentrations should be monitored at intervals during the fumigation and, if necessary, additional fumigant added to maintain the required concentration.

熏蒸期间,应在不同时间间隔监测熏蒸剂的浓度,并根据需要补充熏蒸剂,以达到所要求的浓度。

Fumigants, by their chemical nature, are reactive chemicals. They can have unwanted and adverse effects on the treated commodity. It is essential to be aware of these effects when choosing a fumigant for a particular situationr.

由于化学性质决定了熏蒸剂都是活泼的化学物,它们对所处理的货物在不同的程度上会产生不利的有害影响,因此,在一些特定的情况下,选择熏蒸剂时最基本的一点就是要了解熏蒸剂对货物的影响。

We can obtain fumigation certificate of the Commodity Inspection Bureau and Offer all kinds of fumigation certificate without fumigate.

提供商检局的熏蒸证书,也可以做到免熏蒸提供各种熏蒸证。

Series fumigation experiments were done according to different fumigation pressure,time and dosage to fumigate chosen typical storage pests through ZXX-65 vacuum circulatory fumigation equipment.

用ZXX - 65真空循环熏蒸设备在不同真空压力、熏蒸时间、药剂浓度条件下对选定的典型仓储实验试虫进行熏蒸,根据杀虫效果,筛选出害虫的最优熏蒸条件组合。

Adults of Sitophilus zeamais Motschulsky were fumigated in sealed jars with 4 prickly ash extractants for 48 or 72 h at 30℃.

文章摘要:在30℃下采用广口瓶密闭熏蒸熏蒸48h和72h,测定青椒精油、红椒精油、一级麻素及二级麻素时玉米象Sitophilus zeamais Motschulsky成虫的熏蒸致死作用及LC50值。

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。

The average concentration in No.1 warehouse was reduced by 5.3%in each day when fumigating for seven day.

与无薄膜的全仓环流熏蒸试验相比,膜下环流熏蒸磷化氢浓度达到均匀的时间短;气密性好,熏蒸时取得的Ct值大,杀虫效果更好。

Under the conditions of 24 h fumigation with 30 μL/L dosage at 19 °C, 25 °C and 31 °C, the adult corrected mortalities were 83.108%, 62% and 42%, respectively. These results indicated that the EtF killed the adult weevils in a very short time period, and the fumigation efficacy at relatively lower temperature was better than that at relatively higher temperature. Under the conditions of 20, 25 and 30 °C and 24 h fumigation

1.2 甲酸乙酯对赤拟谷盗的熏蒸活性同样采用广口瓶密闭熏蒸法,在不同的药剂浓度、处理时间和温度下系统研究甲酸乙酯对赤拟谷盗T.castaneum卵、低龄幼虫、高龄幼虫、蛹以及成虫的熏蒸致死作用,结果表明处理时间和温度显著影响甲酸乙酯对赤拟谷盗各虫态的熏蒸致死效果,48h内就能发

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