A growing problem in Swedish herbicide free agriculture, the Canadian thistle has been the object of several new trials, seeking methods for non-chemical weed control. The new trials have mainly confirmed earlier experiences; that the most successful methods of control are springtime ploughing, repeated cutting and competition from a stout crop. Row hoeing has also been proven effective. As opposed to earlier recommendations, half season fallow has shown to be a risky and often ineffective method of control. Trials regarding biological methods have shown that above others thistle rust (Puccinia punctiformis) may have the potential of controlling Canadian thistle the future. .

Powdery mildew is a serious problem in both field and greenhouse cucumber production and can cause serious infection and radically reduced yields. Today, powdery mildew is the main disease in greenhouse produced cucumber. Disease control should preferably be both efficient and environmentally friendly, which is not easy to achieve at all times. Alternatives to chemical control of powdery mildews are biological control, physical control, non-fungicide control and cultivation of resistant or tolerant varieties. Biological control can be described as the suppression of damaging activities inflicted of a harmful organism by one or more other organisms, which are called antagonists or natural enemies. In Sweden, there are currently no registered Biological control products available to control cucumber powdery mildew. The aim of this study was to investigate the effect of two Biological control products in order to evaluate their ability to prevent or reduce powdery mildew infection to an acceptable level in greenhouse produced cucumber. In the experiments, different application regimes were also studied.

Biological pest management is defined as control of pests using their natural enemies. This method has been used in Sweden since the 1970´s and it has been developed ever since. Biological pest management is today relatively common among commercial growers but there are good possibilities to apply this method in the home gardens as well. The aim with this thesis is to compile a report from both the companies that are marketing the products and the home gardener´s point of view. This should give a better understanding of the market and how it could be improved. We will give examples of products that represent the different kinds of organisms that are being used in biological pest management. Our hope is that this will be an introduction to all interested in biological pest management. The legislations regarding registration of organisms are still a matter of discussion and are causing problems to producers, distributors and the market in general. Why isn´t biological pest management more common in the home garden? The main reason appears to be the lack of knowledge in the subject. What are the benefits using biological pest management when it requires so much knowledge and it´s more expensive than conventional pest management? With the environmental problems we face today, we hope that every single gardener has an interest in developing an environment as clean as possible, even if only in one's own backyard..

In this study, the efficiency of a newly launched predatory mite, Amblydromalus limonicus, has been examined for its potential to use as a Biological control agent in cucumber production. A. limonicus can be used for Biological control of two thrips species, Frankliniella occidentalis and Thrips tabaci. Field trials were conducted in greenhouses of two conventional cucumber growers in Scania, the southern part of Sweden. The basic control agent used against thrips was the predatory mite Amblyseius swirskii. In selected areas, additional A.

Pathogenic microorganisms pose a big threat towards food production. Meanwhile, negative impacts on humans and environment are seen by the use of pesticides. Biological control agents are an alternative to the use of chemical pesticides, and plant-growth promoting rhizobacteria, such as Bacillus amyloliquefaciens has been shown to have good properties as biocontrol agents. Before these bacteria can be used commercially their impact on other soil organisms has to be evaluated. This thesis looks into what biocontrol bacteria are and how they might affect earthworms.

Fusarium graminearum causes reduction in both yield and quality in cereal grain worldwide. One of the diseases it can cause is Fusarium Head Blight (FHB). Both sexually and asexually produced spores can infect living plants. Asexual conidia are produced in the mycelium while sexual ascospores form in asci in perithecia on debris. In Biological control, living organsims are used to control pests and diseases.

The aim of the study was to understand how the family home secretary reasons and thinks and how they express themselves in their actions towards the family home?s biological children. The method used is qualitative semi-structured interviews, involving six family home secretaries from four different municipalities. The results were analyzed with the help of two theories ? the theory of grassroots bureaucracy and the sociology of childhood theory.

This article deals with the woodlands as a biological cultural heritage and how it is taken care of in the protected woodlands in Skåne, in the south of Sweden, especially the deciduous trees which is dominated by beech. High biological values have emerged as a result of grazing and different kinds of forestry. The protected woodlands have been ripped of its cultural influences which changes the biological values on which the original reasons for protection was founded..

The purpose of this essay was to examine, from a gender perspective, how biological children in foster families experience the situation of living with foster siblings. The material consists of ten interviews. We searched answers to the questions:1. In what way have the biological childrens relations to parents, biological siblings and foster siblings changed through the placement?2.

The aim of the study was to understand how the family home secretary reasons and thinks and how they express themselves in their actions towards the family home?s biological children. The method used is qualitative semi-structured interviews, involving six family home secretaries from four different municipalities. The results were analyzed with the help of two theories ? the theory of grassroots bureaucracy and the sociology of childhood theory.

The purpose of this essay was to look into whether any attention is paid to the biological children in foster families when the investigation about foster home is made. I did some qualitative interviews with six foster home-investigators, working in five different municipalities. Some of the main questions have been: Do the investigator meet the biological children during an investigation? Are the children´s opinions taken into consideration? Is the suitability of a foster home judged even from the biological children´s perspective?It was shown that it could happen that a foster home was not approved, if it for some reasons should be a negative experience for the biological children, if a foster child would be placed in their home. All the six persons in my interviews thought that it is important to take the biological children´s opinions into consideration, and that the family is not suitable to be a foster home if not all of the family members have a positive attitude.

With a changing climate, we can expect higher temperatures and more precipitation in Sweden.As the temperature increases, new weed species are expected to migrate in from more southerlylatitudes, resulting in requests for new techniques for weed control. In addition, we might see agreater number of weed species and higher biomass production due to increased concentrationof CO2 in the atmosphere.Increased understanding of the biology of specific weed species will become more importantin future weed control. This will help to control the weeds more efficiently. Higher prices onpesticides and a public demand for reduced use of pesticides make growers more inclined to usemechanical weed control on a larger scale and to a greater extent prevent weed establishmentbefore sowing. A well-planned crop rotation is the most important preventive measure, whichmight also include delayed sowing, and dark harrowing and sowing.Research takes place on many levels within the weed area and several alternative methodsare being developed.

The aim of this study was to examine how adoptive parents related to parenting and how they related to their children?s biological origin. Issues that were used were how adoptive parents described their own parenting, how they described their own thoughts about their children eventually wanting to search their biological origin and how adoptive parents described the child´s country of birth attitudes towards adoptees wishes to search their biological origin. The method used was qualitative research interviews. The theory that was used for analyzing the collected data was attachment theory.

TO WORK WITH BIOLOGICAL MOTHERS IN LUND FROM AN ORGANIZATIONAL POINT OF VIEW ALEXANDRA BERTRAM Bertram, A. Degree project in social work 15 Credits. Malmö University: Faculty of health and society, Department of Social Work, 2014. This essay deals with biological mothers whose children are placed in foster care within the municipality of Lund. This essay aimed to describe how social workers in Lund deal with biological mothers from investigation, to treatment. In this essay social workers whom meets biological mothers on an everyday basis have been interviewed about their experience in the field, to gather information.

Biological diversity is one out of four dimensions, characterizing the subject of Biology ac-cording to the school curriculum. As a concept, biological diversity had its break through at the UN environmental conference in Rio de Janeiro in 1992, where the convention about bio-logical diversity, named CBD, was signed. According to the convention, almost all the na-tions of the world have engaged themselves to preserve the national diversity of species, in-cluding the diversity of genetics and ecological systems.This thesis focuses the biological diversity from the perspective of school books. The aim is to find out how the biological diversity is presented in biology books for students aged 12-15 years.In 1994, the current Swedish secondary and high school curriculum called LPO-94 was pre-sented. The biology books used in this study were published between 1994 and 2007, all of them exist in many editions and are published by three different publishers.The conclusion of the study is that all the biology books that were examined have reached different levels of the development in the field of biological diversity..