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The prevalence and abundance of the acanthocephalan exhibited very similar and significantly seasonal change patterns in O. uncirostris and H. bleekeri bleekeri. The infection levels were higher in autumn and winter, but lower in spring and summer. However, the infection levels in Z. platypus kept stable all the year round. There were significant differences among the overall abundance of the acanthocephalan in the three host populations. Nevertheless, the frequency distribution of the parasite in the three kinds of fish was over-dispersed in most seasons and in total as measured by the variance to mean ratio. The variance to mean ratio was not found related to the infection levels.

在感染率和感染丰度方面,寄生于马口鱼和油的木村小棘吻虫呈现出显著的季节变化:秋冬季节感染率和感染丰度都比较高,而春夏季节则比较低;与此不同的是,寄生于宽鳍鱲中的木村小棘吻虫则全年都维持着较稳定的感染水平;木村小棘吻虫种群在三种宿主体内的总体感染丰度差异显著,但都呈聚集分布,三者的方均比与感染率和感染丰度之间无显著相关关系。

Castor oil performs the same function as olive oil but is also anthelmintic (anti-parasitic) in nature as castor oil suffocates worms and parasite in the colon and liver.

蓖麻油做同样的功能,而且是橄榄油驱虫蓖麻油窒息性、寄生虫虫在结肠及肝脏。

Under laboratory conditions 25 min after ultraviolet ray irradiation, 5% zinc oxide's protection efficiency index are 29.4%,0.1% antiscorbutic acid protection efficiency indices is only 7.4%. 4We select appropriate types and concentrations of pesticides from 4.5% alphacypermethrin EC, 20% Imidaclopr...

4.5%高效氯氰菊酯乳油, 20%虫可溶性液剂, 2%啶虫可溶性液剂作为供试农药,筛选合适的农药种类和浓度与绿僵菌混配,作为绿僵菌的增效剂。

The contact toxicity of two kinds of bitter almond on Musca domestica vicina, Mythirmna separata and Sitophilus zeamais was studied. The result showed that the contact toxicity of bitter almond oil is stronger with the increase of concentration.

含有和去除HCN的苦杏仁精油对家蝇、粘虫以及玉米象的触杀活性结果表明随着浓度的增大,精油对三种试虫的触杀活性增强。

It is recorded by Essential Oil Complete Works that lavender essential oil has functions such as relieving xerosis cutis, balancing mood, promoting sleeping, relieving headache and killing insects.

《精油全书》中记载薰衣草精油有缓解皮肤干燥,能够平衡情绪,有助睡眠,可减轻头痛,有驱虫作用。

Getting blood from vena cervicalis, making blood smear as routine, Giemsa staining were used to study through immersion objective observation on naturally case in clinic. The result indicated that many red blood cells infected T. Annulata in number from one to three, which infected one polypide take up the most and two the less, while that of three polypides take up the least.

对临床自然病例进行颈静脉采血,按常规制作血液涂片,Giemsa氏染色,油镜下观察和研究,结果表明:许多红细胞感染有1~3个数量不等的环形泰勒虫,以1个的为最多,含有2个虫体的红细胞较少,偶尔可见到含有3个虫体的红细胞。

Its insecticidal active ingredients are sesquiterpenoid polyol esters with a dihydroagarofuran structure. These compounds are stable to light, heat, and pH, and exert a narcotic and toxic poisoning action. Celastrus angulatus contains a plant-origin insecticide with a unique mechanism of action. Celangulins, a 0.2% emulsifiable concentrate has already been developed for insect control.

是我国广泛分布的一种杀虫植物,其杀虫有效成分基本上均是以二氢沉香呋喃为骨架的多元酯类化合物,对光、热和pH值均稳定,对害虫主要表现为麻醉和毒杀作用,苦皮藤是一类作用机理独特的植物源杀虫剂,在其实际杀虫的应用上,已经开发出了0.2%苦皮藤素乳油。

The degradation kinetics of acetamiprid,including 20% water soluble powder and 3% emulsifiable concentrate,in cotton and soil was studied under field conditions.

应用GC-ECD测定,采用田间试验方法研究了20%啶虫脒可溶性粉剂和3%啶虫脒乳油在棉花和土壤中的残留消解动态,并对其在棉花上使用的安全性提出了建议。

Growth and development activity of two kinds of bitter almond oil against Musca domestica vicina and Mythirmna separata.is studied. The result showed that the time of larvae and pupal stage is shortened 1 to 2 days, and caused some malformed pupas (permanent pupa or died pupae in Musca domestica vicina) in the treatment of different concentration.

生长发育抑制活性结果表明苦杏仁精油使粘虫以及家蝇的生长发育历期较对照提前了1~2d,且不同浓度处理的试虫有畸形蛹(家蝇还有永久性蛹或死蛹)出现。

Spearmint oil can be used as spice, it can be used to produce freshener and low-poison pesticide with high economic effect.

3%,减沙效率达71.5%,能有效地控制水土流失;③留兰香油可作调味香料,也可开发成系列清凉保健产品和高效低毒的植物杀虫、驱虫制剂,经济效益佳。

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