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Bench scale experiments were conducted on the inactivation of young Chironomid larvae by ozone, chlorine dioxide and liquid chlorine. Major influence factors on the inactivation effect of ozone were studied. Based on the bench scale experiment results the feasibility of young Chironomid larvae removal by the ozone-granular activated carbon process was discussed.

进行了臭氧、二氧化氯和液氯灭活低龄期摇蚊幼虫的对比试验，对影响臭氧灭活效果的主要因素进行了考察，在此基础上，探讨了臭氧－活性炭工艺去除水中摇蚊幼虫的可行性。

As a consequense of eutrophication, Chironomid larvae excessively propagates in water sources, such as reservoir and fresh lake, which induced the 1st instar larvae of Chironomid in source water to enter drinking water treatment system.

水体富营养化使得摇蚊幼虫在水库、湖泊类水源中大量孳生繁殖，直接导致其可以在给水处理系统中出现。

0MgL^(-1) of ozone with 11 min exposure caused complete inactivation of young Chironomid larvae in filtrated water in the dynamic experiment. 0.8mgL^(-1) of ozone combined with GAC treatment was able to entirely eliminate Chironomid larvae with low activity.

动态试验中，臭氧投加量1.0mgL^(-1)，接触11min，臭氧对滤后水中的低龄期摇蚊幼虫可以达到100%灭活率；投加量0.8mgL^(-1)，臭氧－活性炭工艺的协同作用可以完全去除水中生物活性减低的摇蚊幼虫。

The trailing roots of Water Hyacinth can provide a habitat for a variety of aquatic invertebrates including gastropods, chironomid larvae, dragonfly and damselfly larvae, various beetles, and heteropteran bugs.

凤眼蓝 的根可作为多种水生无脊椎动物的生境，包括腹足类动物、摇蚊科幼虫、蜻蜓和蟌的幼虫、多类甲虫及异翅目昆虫。

When the larvae were fed with Apricot and apple-pear the death rate of the larvae increased,the larval and pupa stages prolonged, the pupa weight decreased, female adult life shortened and the average fecundity.The age-specific life table of codling moth indicated that the trend index of codling moth population fed on Jonathan apple, Red Delicious apple, Zhangye number two apple, Chinese pear-leaved crab-apple and Crisp pear were more than one. Experiment population quantity was at the growth condition. The trend index of codling moth population fed on Apple-pear and Apricot were less than one.

通过不同寄主植物饲养条件下苹果蠹蛾特定年龄生命表的分析可知，取食沙果、早酥梨、红玉苹果、红元帅苹果和张掖2号苹果的苹果蠹蛾实验种群的种群趋势指数均大于1，实验种群数量处于增长状态，而当苹果蠹蛾取食苹果梨和杏时，其种群趋势指数小于1，下代种群(来源：Ab9b9BC论文网www.abclunwen.com)数量不断减少。

The larvae of Corcyra cephalonica, Musca domestica, Spodoptera litura and Spodoptera exigu which could be easily reared on large scale, were used to feed Myrmeleon sagax larvae, and the effect of these four insect diets on development, food digestion and utilization of antlion was studied.

选择4种可规模化饲养的昆虫--米蛾 Corcyra cephalonica 、家蝇 Musca domestica 、斜纹夜蛾 Spodoptera litura 、甜菜夜蛾Spodoptera exigu幼虫来饲养穴蚁蛉 Myrmeleon sagax幼虫，研究这4种饵料对蚁狮生长发育及消化利用的影响。

Trichogramma showed high control efficacy on cotton bollworm eggs after three times of release both in the second and in the third generation bollworm periods. The parasitism on the second and third generation bollworm eggs were 66.0%-70.7% and 76.0%-81.2%, respectively, which were significantly higher than that in the control (second generation: 7.0%-12.3%, third generation: 5.2%-7.4%). And the injury rate of cotton buds and bolls in the second and third generation bollworm were 2.2% and 3.1%, respectively, which were significantly lower than that in the control (second generation:8.5%, third generation: 20.9%). In the second generation bollworm period, number of bollworm eggs or larvae in the Trichogramma released cotton field did not differ to that in the chemically controlled field. But in the third generation, there were significantly less bollworm eggs and larvae in the Trichogramma released cotton field. There were more predators in the Trichogramma released cotton field. These results indicated that cotton boll worm in the transgenic insect-resistant cotton field can he effectively controlled by mass-releasing of T.

结果发现：棉铃虫卵在棉株不同部位的分布差异较大，2代棉铃虫卵主要分布在叶正面、叶背面和茎尖，3代棉铃虫卵主要分布于蕾铃；在放蜂田，赤眼蜂对棉株不同部位棉铃虫卵的寄生率差异较大，2，3代棉铃虫时期对叶正面、叫背面、茎尖、蕾铃的棉铃虫卵寄生率均较高，对叶柄和茎杆处卵的寄生率较低；并以3代棉铃虫时期的寄生率较高；在2，3代棉铃虫时期分别连续释放3次赤眼蜂，对棉铃虫具有很强控制作用，2，3代棉铃虫卵的被寄生率分别为66.0%~70.7%和76.0%~81.2%，均显著高于化防田的自然寄生率（2代：7.0%~12.3%，3代：5.2%~7.4%）；蕾铃被害率分别为2.2%和3.1%，均显著低于化防田（2代：8.5%，3代：20.9%；2代棉铃虫时期，放蜂田和化防田的棉铃虫卵量和幼虫数量差异均不显著，但3代棉铃虫以后，放蜂田棉铃虫卵量和幼虫数量均显著低于化防田，且放蜂田的捕食性天敌数量显著高于化防田。

RESULTS Early-instar larvae could not be identified, but all fourth-instar larvae identified were members of the Culex pipiens complex.

结果 初龄幼虫无法确定，但所有四龄幼虫鉴定成员的库蚊复杂。

Cross of the two species showed hybrid weakness in both fertilization and growth, while zygotes'hatching success was similar with parental combinations, as well as the larvae survival which exist no significant with Kumamoto oyster larvae. Hybrids died numerously when metamorphosing and setting on the cultch. The survival hybrid spats grow poorly with high mortality.

杂交幼虫在受精率上存在显著劣势；但是受精卵的孵化率与纯种受精卵无显著差异；杂交幼虫在生长上也存在显著劣势；而存活率与熊本牡蛎无显著差异；杂交幼虫附着变态期间大量死亡，存活下来的稚贝生长缓慢，死亡率高。

Cutworm is am important tobacco pest in Hunan Province, its larvae of first generation injures tobacco plant in April and May, the egg and larvae of 1-3rd instar are sensitive to storm.

小地老虎眼Agrotisypsilon穴Rottemberg雪演是湖南的一种重要烟草害虫，其第1代幼虫于4、5月为害烟株，卵和1-3龄幼虫对大风雨敏感。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。