除虫

The first part discusses about the effects of the five factors:temperature,relative air moisture,rate of frass sifting,density of larvae,fodder water percentage to growth speed and survival rate of older mealworm (Tenebrio molitor L.) larvae through rotational composite design of quadratic regression. Two models were established to describe the effects of the five factors. The models showed that percentage of fodder water is the major factor that has effect on the growing speed of T. molitor larvae,and fodder water is the major factor on death rate. The models also show that temperature on growth speed,temperature and fodder have important effects on death rate,and the significant test showed they have significant difference on 1% or 5% level. From the two models,by frequency analysis,we can get the optimizing rearing condition,in which the mealworm larvae overweight 10% per day,temperature is 25-26 ,frass sifting rate is once 2-4 days,density of larvae is 0.61-0.79 g/cm2,fodder water is 33.27%-39.71%. And the rearing condition,in which total death rate of T.

第一部分：采用五因素二次正交旋转组合设计，以黄粉虫幼虫饲养过程中饲养温度(X_1)相对湿度(X_2)、虫粪筛除频率(X_3)、饲养密度(X_4)以及饲料含水量(X_5)五因素为参试因素，考查它们对黄粉虫高龄幼虫的生长及存活的影响，建立了以黄粉虫幼虫增重率及死亡率为目标函数的回归模型，并进行了简化： Y_增=127.5079+18.6559x_5+2.7894x_3x_4-2.3854x_3x_5-3.0594x_1~2+1.8241x_3~2-3.8559x_5~2 Y_死=1.7459+0.4108x_1+0.0975x_2+0.9025x_4+0.3442x_5+0.0834x_1~2+0.3060x_4~2-0.2623x_5~2 分析结果表明：影响黄粉虫幼虫生长后期增重及死亡的主要因素分别为饲料含水量和饲养密度；饲料含水量和温度对黄粉虫增重有着重要的影响，饲养密度、温度、饲料含水量对黄粉虫的死亡有着重要的影响，其影响均达1％或5％显著水平；黄粉虫幼虫后期日增重率大于10％的饲养条件为：温度26～27℃、筛粪频率2～4天／次、饲养密度0.61～0.79g／cm~2、饲料含水量33.27～39.71％。

The method is simple,sensitve,rapid,and could be applied to detect organochlorine and pyrethroid pesticid...

该方法简单、快速，完全可以满足苹果中有机氯及拟除虫菊酯类农药的多残留快速分析检测要求。

The average recoveries of three kinds of extraction method are all suitable for determining pyrethroid pesticide multiresidues in dringking water.

3种萃取方法的回收率均可满足饮用水中痕量拟除虫菊酯类农药的分析，以正己烷快速混合萃取回收率最高。

for the simultaneous determination of residues of 16 organophosphorus、organochlorines and pyrethroids in tea drinker was estabilished by GC.

bstract 本文建立了乌龙茶茶汤中的有机磷、有机氯和拟除虫菊酯类农药的提取、净化和气相色谱检测的方法。

A gas chromatographic method for determination of pesticide residues in sulphur-containing vegetables(green Chinese onion, onion, garlic, garlic pedicel and leek, etc.) was established.

建立了含硫蔬菜（青葱、洋葱、大蒜、蒜苔、韭菜等）中多种有机氯和拟除虫菊酯类农药残留的测定方法。

Spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum.

从亚洲种中衍生出的庭园多年生种之一，在晚春开白色、桃红色、红色或罕见的淡紫色花；除虫剂的原料；有时归入菊花属。

Objective: To establish a method for detection of antiseptics and pyrethin pesticides in vegetables by GC.

目的：建立气相色谱法测定蔬菜中杀菌剂和拟除虫菊酯类农药的分析方法。

I'll call the exterminators right away.

我马上打电话给除虫大队。

Armigera. The mRNA expression levels of CYP9A12 and CYP9A17v2 in midgut were higher than those in the fatbody respectively.

以pYES2作为表达载体，在酵母W菌株中表达了棉铃虫细胞色素P450基因CYP9A12和CYP9A17v2，分析了这两个基因的异源表达产物对溴氰菊酯、氟氯氰菊酯、甲氰菊酯和联苯菊酯四种拟除虫菊酯类药剂的离体代谢作用。

The results suggested that insecticide resistance in German cockroach field populations may be correlated with elevated activity of CarE.

结论德国小蠊抗性品系和敏感品系在CarE生化特征上的差异，显示出德国小蠊抗性品系对几种拟除虫菊酯类杀虫剂产生的高度抗性，与其体内CarE活性的提高有密切关系，表明CarE活性的提高是北京地区野外德国小蠊品系普遍存在的一种抗性机制。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失