通过管控防焊显影水洗、沉金微蚀缸微蚀量，改善铜面水迹印微蚀不均匀导致的金面花斑问题。

This paper provided the solution to gold surface sports issue through control of solder mask development water scrubbing, micro-etch tank content, improving the copper surface micro-etching uneven surface on board as well.

印楝素是一种重要的植物源杀虫剂，已有研究表明其对红脉穗螟具有胃毒和触杀效果，但印楝素对红脉穗螟生长发育的影响还未见报道。采用生物测定方法研究了印楝素不同亚致死剂量水平下，对红脉穗螟幼虫和蛹发育历期的影响，并对药剂处理后成虫的寿命、产卵量和孵化率等进行了分析。经印楝素处理后，红脉穗螟幼虫和蛹的发育历期与对照相比均有所延长，成虫寿命变短，同时处理后红脉穗螟成虫产卵量及后期的卵孵化率均显著降低，其中经LC25、LC50和LC90剂量处理后，产卵量分别降低了14．30％、20．38％和19．43％，卵孵化率分别降低了24．24％、26．89％和31．60％。印楝素可通过干扰红脉穗螟虫体的生长发育和后代产卵力来达到对害虫种群的防控效果。

Background Azadirachtin is an important botanical pesticide .Its toxicity on Tirathaba rufivena Walker has been repor-ted to be on contact or to affect the stomach .However the effects of azadirachtin on development and egg production of T.rufivena have never been studied .[Method] A bioassay method was used to detect the effects of azadirachtin on larval and pupal develop -ment as well as longevity and egg production of T.rufivena at different sub-lethal does .[Result] The development of larvae and pu-pae were delayed , and the longevity of adults was reduced after expoeure to azadirachtin .The number of eggs and their hatchability were also redused.After treated with azadirachtin at sub-lethal does of LC25, LC50 and LC90, the egg production declined by 14.30%, 20.38%and 19.43%, and hatchability reduced 24.24%, 26.89% and 31.60% respectively.[Conclusion and significance] Aza-dirachtin may be used as an effective pesticide on T.rufivena control sincesince it disturbs its development an

目的：了解大理市饮水含砷量及地方性砷中毒病情防治现状。方法将6个自然村（南村、名庄、青山、双廊、河埂和海印）做为监测点，调查防砷改水进度及工程管理使用情况；同时测定饮水含砷量。结果6个村砷中毒检出率为6.99％，海印村最高。砷中毒病人的年龄与检出率正相关（P<0.05）；6个自然村砷中毒死亡12人（占15.38％）；南村水砷含量超标率最高。结论大理市饮水型地方性砷中毒病情程度总体上为轻度，但防治监测工作还需重视。

Objective Learn Dali City drinking water arsenic endemic arsenic poisoning and disease prevention Situation. Methods The six vil ages as a monitoring point, the progress of the investigation and the anti-arsenic water improvement project management and use; Simultaneous determination of arsenic in drinking water. Results 6 vil ages detection rate of 6.99% arsenic poisoning, was the highest haiyin vil age. Arsenic poisoning the patient''s age and the detection rate of positive correlation (P<0.05);6 vil ages arsenic poisoning death of 12 people (representing 15.38%); Vil age water arsenic levels exceeding the highest rate. Conclusion Dali City endemic arsenic poisoning of drinking water on the whole extent of the disease is mild, but need to pay attention to prevention and treatment monitoring.

从印楝叶片和果实中分离93株内生放线菌。生长速率法测定表明29株内生放线菌对稻瘟病菌Magnaporthe grisea具有拮抗作用，其中菌株YL-2对稻瘟病菌的抑制率达82.65%。杯碟法测定表明菌株YL-2发酵液对供试的18种植物致病真菌均具有抑菌活性，盆栽试验表明菌株YL-2发酵液对稻瘟病防效达85.41%，显著高于浓度为25 mg/L春雷霉素可湿性粉剂的防效。根据形态特征、生理生化特性、细胞壁化学成分和16S rDNA序列，初步鉴定菌株YL-2为娄彻氏链霉菌Streptomyces rochei。

Ninety-three endophytic actinomycetes were isolated from the leaf and fruit of Azadirachta indica A. Juss.. The results showed that 29 strains had antagonistic activities against Magnaporthe griseaby measuring mycelial growth rate method. The strain YL-2 had a strong antifungal activity againstM. grisea with the inhibition rate of 82.65%. And it exhibited antagonistic activities against 18 kinds of plant pathogenic fungi by cylinder-plate method. The pot experiment showed that the control efficiency of filtrate from YL-2 fermentation liquid onM. griseawas significantly higher than 25 mg/L Kasugamycin WP which could be up to 85.41%. According to the morphological characteristics, physiological and biochemical properties, chemical composition of the cell wall and 16S rDNA, the strain YL-2 was preliminarily identified asStreptomyces rochei.

为了让更多的人了解我国草原虫害生物防治技术应用情况,在查阅文献的基础上,结合我国草原虫害防控工作现状,回顾了草原虫害生物防治工作的进展历程,详细介绍了在推广工作中蝗虫微孢子虫、绿僵菌、类产碱假单胞菌、核型多角体病毒、阿维菌素、牧鸡牧鸭和人工招引粉红椋鸟、印楝素、苦参碱、烟碱·苦参碱等生物药剂和天敌控制技术的研究进展及在草原上的应用现状。最后,总结了近10年我国草原虫害生物防治技术的应用情况,指出我国草原虫害生物防控正在形成由微生物农药、农用抗生素、天敌利用、植物源农药等多种技术构成的新型格局,并针对防治工作中存在的主要问题,提出了对策建议,为今后开展相关研究和工作提供技术支持和参考依据。

In order to provide detailed information on the development and application of biological technolo-gy for controlling the pest insect in rangeland in China,the technologies,including Nosema locustae,Metarhiz-ium flavoviride,Pseudomonas pseudoalcaligenes,nuclear polyhedrosis viruses,avermectins,herding chicken and duck,attracting Sturnus roseus,azadirachtin,matrine and matrine-nicotine were introduced based on reviewing the literatures and research word.And the application and extension work,including microbial pesticide,agricul-tural antibiotic,natural enemy and botanical pesticide,were summarized.Some suggestions related to important problems existing in application were also provided.