在自然条件下,其林间寄生率可达50%。
寄生天敌云杉瘿蚊长尾小蜂寄生率达6 .39%。
The parasitic rate of parasitic natural enemy Torymus gansuensis is 6 39.
寄主幼虫供寄生后,其寄生率随寄主幼虫供寄生时的龄期增大而下降。
The host mortality after exposure were decreased with increase of the host age at exposure to the parasitoid.
通过饲养与解剖虫瘿,观察了寄生泽兰实蝇的本土寄生蜂种及其寄生率。
Six species of solitary parasitoids emerged from galls with a combined parasitism of over 70%, among which three parasitoids, Torymoides kiesenwetteri (Mayr).
对寄生率影响较明显的为侵染期的降雨日数和前一年线虫脱出高峰期的露日数。
The rate of parasiting to the oriental armyworm is seriously influenced by the day number of raining of April and of dewing from 11-25, March of last year.
近年来,平腹小蜂人工卵的研究虽获得一定的进展,但仍然存在寄生率低和不稳定等问题。
Although it showed some promising results, there are still some problems, such as the lower parasitism and instability etc. to be solved.
结果发现:KMD1处理后,三个龄期幼虫的寄生率都显著下降,其中4龄和5龄达极显著水平;
The results showed that parasitized rates of host larvae fed on KMD1 were significantly (3rd instar) or very significantly (4th and 5th instar) lower than those of the control.
随着雌蜂密度增加,寄主蛹的寄生率和平均每头寄生蛹中的子蜂数相应提高,但平均每雌产的子蜂数则逐渐减少。
With an increase in female parasitiod density, there was a corresponding increase in pupal parasitization rate and the average number of progeny per parasitized pupae.
寄生蜂对1龄寄主幼虫的寄生率以及1龄粘虫育出的茧重均是三个龄期寄主中最小的,但死亡率却是三者间最高的。
The parasitizing rate and pupae weight which were bred in the larvae of the 1st instar were the lowest but the mortality rate after parasitizing was the highest.
本文综述了对螟虫长距茧蜂的研究概况,包括该寄生蜂的主要生物学习性、对玉米螟自然寄生率及田间防治玉米螟效果等。
Studies on Macrocentrus linearis, including its biology, natural parasitic rate and the field control effect on Ostrinia furnacalis are reviewed in this paper.
广赤眼蜂、涓夜蛾绒茧蜂、广大腿小蜂分别为卵期、幼虫期和蛹期的天敌优势种,其最高寄生率分别为30 %、80 %和65 %。
Among them, Trichogramma evanescens, Apanteles sp. and Brachymeria obscurata were dominant species with the highest parasitizations of 30%, 80% and 65% respectively.
卵放在木段外,卵期缩短为13 ~15天,平均孵化率及初孵幼虫对光肩星天牛幼虫的平均寄生率均有所提高,分别为83.3%和87.5%。
When eggs placed out of the wood block, egg stage is 13 ~ 15days, average hatching rate and average parasite rate are increased, they are 83.3% and 87.5% respectively.
这个实验得出的结果是低果糖饮食使感染念珠棘虫属寄生虫的老鼠有较高的存活率。
In this case a low-fructose diet kept infection with a parasitic worm called Moniliformis dubius under control in rats.
这就解释了为何城市中深色羽毛的鸟类较多,因为这些地区寄生虫患病率较高。
This could also explain why there are higher populations of dark feathered birds in urban areas, where parasite prevalence is higher.
研究者将寄生虫的进化率和西印度群岛的禽类宿主的进化率联系起来。
The researchers linked the rate of evolution in the parasites to the rate of evolution in bird hosts in the West Indies.
脑囊虫病是一种常见的、严重的神经系统寄生虫病,致残率、死亡率均相当高,严重危害人民身体健康。
Cerebral cysticercosis is a kind of common and serious nervous system parasitic disease which the rate of deformity and mortality are so high as to harm people health seriously.
结论开展防治寄生虫病的健康教育,可提高居民的防病知识,逐步形成健康行为,使寄生虫感染率明显下降。
Conclusion the health education can raise the residents' knowledge of preventive parasitic diseases, form progressively the health action and descend evidently the infection rate of parasites.
在测量硅微电容式加速度传感器时,由于器件信号的微弱和寄生电容的干扰,提高加速度的稳定性和分辨率非常困难。
Due to the parasitic capacitance and weak output signal, which is limited by its dimensions, it is difficult to improve the resolution and stability of micro accelerometer efficiently.
其中深圳市和广州市的褐家鼠的寄生虫感染率比较高。
There were higher incidence of parasite infection present in Shenzhen city and Guangzhou city.
单独犬细小病毒感染、细小病毒混合肠道寄生虫、细菌感染者,治愈率高。
The independent CPV infection, CPV mix intestinal tract parasite, the bacterium infected person, the cure rate is high.
穆尔女士和威尔逊博士搜集关于哺乳动物的寄生病的报告表明男子和女子感染率不同。
Ms Moore and Dr Wilson compiled reports of parasitism in mammals in which males and females had different rates of infections.
田间小区试验测定了白僵菌对大豆蚜的感染率、寄生速率和防效。
The infected ratio, parasitical rate and central effect of Beauveria bassiana on Soybean aphis were measured though the field plot experiments.
黑线姬鼠体全沟硬蜱幼、若蜱的寄生百分率(54.5%)和花鼠体森林革蜱幼、若蜱的寄生指数(17.8)最高。
The parasitic rate of Ixodes persulcatus (54, 5%) on Apodemus agrarius and the parasitic index of Dermatcentor sih'artnn (17. 8) on Eulantias sibiricus are the highest.
吞噬率测定结果表明,与对照相比,寄生及毒液处理能显著降低蛹血细胞的吞噬能力。
The phagocytosis rate results showed that compared with negative control, both venom injection and parasitization could suppress the phagocytosis rate of pupal hemocytes.
通过正交试验法探讨了提取工艺的最佳条件,分别考察了乙醇体积分数、超声时间和固液比3个因素对槲寄生中总黄酮提取率的影响。
Orthogonal test was used to evaluate the influence of the 3 factors, including the concentration of ethanol, the extracting time by ultrasonic, and the rate of solid and liquid.
通过定义的误差贡献率评价指标,方便地分析了柔性铰链寄生刚度对平面柔性铰链机构刚度模型精度的影响。
The index of the error contribution rate is proposed, which facilitates the study of the effect of parasitic stiffness of flexure hinge on planar compliant mechanism.
出口粪液寄生虫卵沉降率、粪大肠菌群值两项同时达标率为100%。
The "reaching criteria rate" of the parasite ova sediment and the value of the fecal coliform bacteria were 100% among the excrement in the outlet.
寄生虫混合感染统计结果显示:感染1种肠道寄生虫的动物宿主最多,寄生虫混合感染种数与混合感染率呈负相关。
The parasite mixed infection results showed: Most animals infected with 1 parasite, parasites mixed infection species negatively correlated with mixed infection.
寄生虫混合感染统计结果显示:感染1种肠道寄生虫的动物宿主最多,寄生虫混合感染种数与混合感染率呈负相关。
The parasite mixed infection results showed: Most animals infected with 1 parasite, parasites mixed infection species negatively correlated with mixed infection.
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