云南林木真菌病害研究(Ⅰ)

 报道了云南林木真菌病害23种,其中:国内新记录4种,云南省内新记录11种,云南省内已知种新分布8种.前者有描述,其余以名录列后,拟供植保和植检工作参考.     

猫下泌尿道综合征

猫下泌尿道综合征（FLUTD）是猫最常见的疾病之一,因其发病率高、病因复杂、确诊困难、治疗后易复发等特点,逐渐成为猫科疾病的研究热点。FLUTD包括多种疾病类型,精准治疗、合理预防已成为科学防控该疾病的关键。本文从FLUTD的分类、流行病学及风险因子、发病机制、临床症状、诊断和防治对该综合征进行综述,以推动猫下泌尿道综合征的深入研究及临床诊疗的发展。     

广东省藜蒴研究进展

文章综述了近年来藜蒴的研究概况,指出藜蒴是一种分布广、种源丰富的优良乡土树种,在广东分布尤广;藜蒴人工林生物量较大,林地的土壤保水性和通气性均比火力楠林地、荷木林地的好;藜蒴造林可用实生苗和扦插苗,马尾松、藜蒴混交林比马尾松纯林树种根系的吸收能力强。藜蒴主要病虫害种类达30多种,其中虫害25种,病害8种以上;藜蒴木材用途广,可应用于中纤板生产,通过不同的抽提处理来改变或控制其弦界面性质。     

Designing pest-suppressive multistrata perennial crop systems: shade-grown coffee in Central America

During most of its cultivation in Central America, coffee (Coffea arabica L.) suffered few serious pest problems. However, over the past three decades, three factors contributed to significantly increase pest levels and losses: the recent introduction of new pests; more favorable conditions for existing pests, diseases, and weeds due to lower shade levels; and secondary pest problems caused by pesticide use. The strategy of maximizing coffee production with pest control dominated by synthetic pesticides has not only increased yields substantially, but also production costs, pesticide resistance, and both human health and environmental risks. An analysis of the response of the food web in coffee plantations to varying levels of light and humidity associated with different shade levels provides the basis for identifying the optimum shade conditions which minimize the entire pest complex and maximize the effects of beneficial microflora and fauna acting against it. These optimum shade conditions for pest suppression differ with climate, altitude, and soils. The selection of tree species and associations, density and spatial arrangement, as well as shade management regimes are critical decisions for shade strata design. Site-specific knowledge of the seasonal food web dynamics permits growers to determine the appropriate seasonal shade management in order to further suppress pest levels. For example in a low-elevation dry coffee zone, 35 to 65% shade promotes leaf retention in the dry season and reduces Cercospora coffeicola, weeds, and Planococcus citri; at the same time, it increases the effectiveness of microbial and parasitic organisms without contributing to increased Hemileia vastatrix levels or reducing yields. In these conditions, shade should be at a maximum early in the dry season and at a minimum by the middle of the rainy season. Further research is needed on: the effects of individual tree species on the food web; the role of canopy architecture for coffee vigor, photosynthesis, leaf drying, pest susceptibility, and pruning regimes; and on simple observation methods and decision criteria for farmer management of tree-coffee-food web interactions. This revised version was published online in June 2006 with corrections to the Cover Date.     

陇南茶树主要病虫害发生动态及防治措施

针对甘肃陇南茶树病虫害发生种类不清的实际,采用普查与定点调查相结合的方法,在摸清了主要病虫害发生规律的基础上,根据无公害茶叶生产要求,探索了无公害防治技术。     

桐庐县板栗主要病虫为害现状及防治

对桐庐板栗病虫发生的主要种类和为害特点进行调查分析，并针对当前防治中存在的问题提出了相应的防治意见。     

公路草坪养护管理技术初探

为保证草坪绿化质量 ,延长其寿命 ,结合近年来在公路草坪施工与养护管理中积累的实践经验 ,对公路草坪的种类、生长习性 ,以及草坪建植后的浇水、除杂草、修剪、施肥、病虫害防治等养护管理技术进行了探讨与总结 ,以期为各地公路草坪绿化建设提供借鉴与参考。     

浅谈森林病虫害防治

介绍了森林病虫害的危害后果对社会经济和生态环境带来的严重影响。为进一步加强森林病虫害的防治,结合实际工作,利用森防科技改进防治手段,做到"以预防为主,综合治理"。