除虫

Objective Study the indoor ground free flea control method to prevent occurrence and epidemic of mouse transmission diseases.

化学杀虫剂杀灭地面游离蚤，均以有机磷或拟除虫菊酯类杀虫剂的单一用药为主〔1，2〕，但在实际工作中发现，单一用药灭蚤效果很差。

Objective: To establish a gas chromatography method for simultaneous determination of organochlorine and pyrethroid pesticide residues in Viscum coloratum by cloud-point extraction.

中文摘要：目的：建立浊点萃取-气相色谱法测定槲寄生中有机氯和拟除虫菊酯类农药残留量的方法。

Objective: To establish gas chromatography method for simultaneous determination of organochlorine and pyrethroid pesticide residues in Viscum coloratum by cloud-point extraction.

中文摘要：目的：建立浊点萃取-气相色谱法测定槲寄生中有机氯和拟除虫菊酯类农药残留量的方法。

The studies on metabolic enzymes、synergists and neurobioassays suggest that the monooxygenases、esterase and decreased nerve sensitity are involved in resistance to pyrethroids in the resistant HJ-R strain . The resistance to both organophosphorus and carbamate insecticides is mainly caused by metabolic mechanisms. The significantly synergistic effects of Pbo infer that the resistance to carbamata may be principally attributable to monooxygenases detoxification.

代谢酶系、增效作用以及神经电生理研究表明，HJ-R种群对拟除虫菊酯类杀虫剂的抗性是由多功能氧化酶及酯酶代谢增强、神经敏感性降低几个因子综合作用的结果；对有机磷、氨基甲酸酯类杀虫剂的抗性主要是由代谢机制引起，与靶标部位敏感性降低机制抗性无关，Pbo对HJ-R种群突出的增效作用，表明多功能氧化酶代谢在对灭多威的抗性中可能起主导作用。

Ancient people would harvest grain, melon and fruit, vegetables and Cash crop, through kinds of work such as selecting field , opening up wasteland, renovating field, selecting seeds, planting, protecting young seedling, weeding, irrigation, fertilization, reaping, solarizing and airing, storing and so on.

通过相土、开荒、整地、选种、播种、保苗、除草、灌溉、除虫、施肥、收割、晾晒、入仓等一系列耕种过程和管理方法的实施，先民将会收获麦、黍、稷、稻、粱、菽等粮食作物和瓜果菜蔬以及桑、麻、葛等经济作物，并将这些农耕生产所得广泛用于饮食、祭祀、酿酒、养蚕等各个领域。

Objective: To establish a method for detecting 15 kinds of organochlorines and 8 kinds of pyrethroid pesticide multiresidues in vegetable foods and products.

目的：建立蔬菜及其制品中15种有机氯农药和8种拟除虫菊酯类农药的残留气相色谱分析方法。

A method to determine pyrethroid residues in traditional Chinese medicines based on microwave-assisted extraction was studied.

研究了采用微波辅助萃取法从中药材中提取拟除虫菊酯类农药的影响因素。

In this paper,mechanism and effect factors of pyrethroid to aquatic organisms were reviewed.

本文综述了菊酯类农药对各种水田生物的急性和慢性作用机制、影响因子，提出拟除虫菊酯类农药能否在水田应用需要进行深入系统的研究论证。

A method to determine 4 pyrethroid pesticides in traditional Chinese medicines based on microwave-assisted extraction was studied.

考察采用微波辅助萃取技术从中药材中提取除虫菊酯类农药的影响因素。

Besides, method of GC-MS/MS for organochlorine and pyrethroid pesticide residue was also optimized.

此外，本章还开展了有机氯和拟除虫菊酯类农药的GC-CI-MS/MS分析方法研究。

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