成螨

F1、F2代的后代雌性比例都增大，但F1代卵的孵化率和若螨羽化率降低，产卵量和成螨寿命增加，F2代却相反。

The hatching rate of eggs and the emergence rate of the nymphs decreased while the number of eggs laid per female and the adult longevity both increased in F1 generation , which were totally in verse in F2 generation .

温度和湿度对腐食酪螨卵发育和孵化、雌成螨存活和繁殖均有不同程度的影响。

Temperature and humidity have different influences on its egg growth and hatch , the adult survival and fecundity .

以1mg/mL浓度处理，48h的成螨校正死亡率和产卵抑制率分别为28.2%和53.21%。

At concentration of 1 mg / mL , the mortality of female adults was 28.2 % , and oviposition inhibition was 53.1 % after 48 h treatment .

几种供试药剂对柑桔锈螨成螨都表现出较高的毒力，其LC50分布在0.31～4.51μg/ml之间。

These pesticides were highly effective against adult citrus rust mites , with LC50s from 0.31 to 4.51 μ g / ml.

选用ICR成年雌小鼠，实验分两部分进行。以部分第8代和第9代雌成螨越冬。

100 mice were used in two experiments . Female adults of the part of the 8th generation and the 9th generation over wintered through 5 months and acted in mid-March next year .

用一种新方法测定磷化氢对腐食酪螨[Tyrophagusputrescentiae（schrank）]成螨的毒力

Determination of toxicity of phosphine on adults of copra mite [ tyrophagus putrescentiae ( schrank ) ] by a new laboratory method

该螨一年多代，主要以成螨在芽鳞下越冬。

EPP mainly overwinters as adults beneath bud scales .

8月至9月产生越冬型雌成螨和越冬滞育卵。

Winter-type of an adult female mite and winter diapause egg appear in August to September .

磷化氢、二氧化碳及低氧、二氧化碳混合熏蒸对腐食酪螨成螨毒杀作用的研究

The toxicity of phosphine carbon dioxide and oxygen alone and as mixtures to the adults of copra mite

对幼螨、若螨、成螨和卵等螨的各发育阶段均有效。

David mite right , the nymph and the adult mites and mite eggs , etc. in the development stage effective .

这2种药剂对南方毛绥螨雌成螨的毒力低，对卵的孵化率没有影响。

Toxicity of the two pesticides against Lasioseius sp. was low toxic and no effect on the hatching rate of egg .

雌成螨在25℃条件下，总产卵量和日平均最高产卵量，分别为42.9和2.4粒；

The highest average total as well as daily oviposition ( 42.9 and 2.4 , respectively ) were obtained at the constant temperature of 25 ° C.

采用玻片浸渍法和浸叶碟法，选用近年来在生产上推广应用的9种杀螨剂，对山楂叶螨的雌成螨和卵进行了毒力测定。

The toxicity to adult females and eggs of Tetranychus viennensis were tested with several acaricides have been used in recent years by both slide dip method and leaf disk dip method .

因此，接雌成螨水平、叶片受害时间、害螨种群密度对茶树光合作用强度有显著的影响.另外，初始接雌成螨量大于8头/叶时，该螨种群消长受到抑制。

Meanwhile , if the initially inoculated amount of female adult mite was more than 8 head per leaf , the increase or decrease of population density of mite would be inhibited .

朱砂叶螨能够取食苦瓜叶片，但发育历期延长，雌成螨寿命缩短，死亡率较高，而且在苦瓜上不产卵。

The mite could feed balsam pear , but the pest on balsam pear showed longer period of development , shorter longevity of the female adults , higher mortality and did not oviposit .

幼螨、若螨的存活率以27℃最高，高温不利于幼螨、若螨的存活，33℃下仅为55.72%发育为成螨。

The survival of the larvae and nymphs was highest at 27 ℃ . Higher temperatures were unfavorable for their survival : at 33 ℃, only 55.72 % developed into the adult stage .

在试验温度范围内（21℃－33℃）世代存活率、雌成螨平均产卵量、种群增长指数均呈抛物线趋势，可以用二次抛物线方程表示其随温度的变化情况。

In the temperature range of the experiment ( 21 ~ 33 ℃), the survival percentage of whole generatio , the number of eggs laid per female and the index of population increase showed a general trend which can be described by parabolic equations .

在枣树发芽前喷波美5度石硫合剂，可有效地杀灭在枣股上越冬的成螨；5月下旬喷40%氧化乐果乳剂1000倍液，对已被螨害的枣树能起到控制的作用。

It was found that spraying lime sulphur at a concentration of 5 Baume on the tree before germination proved effective in killing the adult mites overwintering on the dates , and spraying 40 % oxidized Rogor diluted 1000 times in late May also proved effective in controlling mites .

山东南部滨湖地区成蚊水螨寄生情况的调查研究

Survey of parasitization of water mites on mosquitoes in the lakeside in south of Shandong Provence