|
|
|
|
|
| Hagner, Marleena; Penttinen, Olli-Pekka; Pasanen, Tiina; Tiilikkala, Kari; Setälä, Heikki. |
| Birch tar oil (BTO) is a by-product of processing birch wood in a pyrolysis system. Accumulating evidence suggests the suitability of BTO as a biocide or repellent in terrestrial environments for the control of weeds, insects, molluscs and rodents. Once applied as biocide, BTO may end up, either through run-off or leaching, in aquatic systems and may have adverse effects on non-target organisms. As very little is known about the toxicity of BTO to aquatic organisms, the present study investigated acute toxicity (LC50/EC50) of BTO for eight aquatic organisms. Bioassays with the Asellus aquaticus (crustacean), Lumbriculus variegatus (oligochaeta worm), Daphnia magna (crustacean), Lymnea sp. (mollusc), Lemna minor (vascular plant), Danio rerio (fish),... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects. |
| Ano: 2010 |
URL: http://orgprints.org/16886/1/hagner1.pdf |
| |
|
|
| Markkula, Irmeli; Leskinen, Matti; Pylkkö, Pirkko; Ooperi, Sini; Tiilikkala, Kari; Ojanen, Hannu; Raiskio, Sakari; Koistinen, Jarmo. |
| In Finland most of the long-range migrations of pest insects are carried by warm air currents from south and south-east, by winds blowing from the continent. Changes in climate affect not only local populations, but also the source populations in these migrations. The possible changes predicted by climate change models in the areas of interest in Finland include longer growing seasons, milder winters, and slight increase in precipitation at the higher latitudes, but also increase in droughts in the southerly areas where many of the migrants are supposed to overwinter. The migratory insect pests can take full advantage of the longer growing season, and monitoring of the migration both in the fields and in the air would be important in making the control... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2010 |
URL: http://orgprints.org/17284/1/Markkula.doc |
| |
|
|
| Hagner, Marleena; Pasanen, Tiina; Lindqvist, Bengt; Lindqvist, Isa; Tiilikkala, Kari; Penttinen, Olli-Pekka; Setälä, Heikki. |
| The use of birch tar oil (BTO) is a new innovation in plant and animal protection working against various weeds, harmful insects and rodents. Due to its novelty as a biocide/repellent/plant protection product, no comprehensive information on the effects of BTO on non-target soil organisms is available. In this study we examined the impact of BTO on non-target soil organisms (enchytraeids, nematodes and soil microbes) and plants using laboratory toxicity tests and field experiments. In addition, we determined the LC50 value of BTO to the earthworm Aporrectodea caliginosa and the EC50 value of BTO to the offspring production of the collembolan Folsomia candida. The effects of BTO on soil fauna were mostly insignificant. BTO seemed to be detrimental to the... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2010 |
URL: http://orgprints.org/16885/1/hagner.pdf |
| |
|
|
| Pylkkö, Pirkko; Koistinen, Jarmo; Markkula, Irmeli; Ojanen, Hannu; Tiilikkala, Kari; Raiskio, Sakari; Leskinen, Matti; Ooperi, Sini. |
| The pilot system for forecasting insect migrations to next two days will be operated during May and June 2008. Forecasts are concentrating on two major pests; namely diamond-back moth and bird cherry aphid. Five to ten pilot users will get automatic SMS warning messages and are able to study the situation more thoroughly via specific web pages. The pilot users report to the study team about their findings and the usefulness of the service. The validity of the service will be tested using field traps. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2008 |
URL: http://orgprints.org/14714/1/pylkko.pdf |
| |
|
|
| Markkula, Irmeli; Ojanen, Hannu; Tiilikkala, Kari; Raiskio, Sakari; Pylkkö, Pirkko; Koistinen, Jarmo; Leskinen, Matti; Ooperi, Sini. |
| In this migration event we could observe large insects migrating high in the atmosphere nearly inside precipitation at the cloud base or between precipitative cells. On the other hand, daytime migrants seemed to fill most of the rain free areas. The accuracy of forecasted rain areas is probably never good enough to predict where and when rain would cause the insects to land, and dispersion model may have difficulties in predicting the migration through partially rainy weather. In addition, the highest levels of infestation may occur at rain areas that form barriers for the migrants. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2008 |
URL: http://orgprints.org/14713/1/markkula.pdf |
| |
|
|
| Lindqvist, Isa; Lindqvist, Bengt; Tiilikkala, Kari; Hagner, Marleena; Penttinen, Olli-Pekka; Pasanen, Tiina; Setälä, Heikki. |
| Populations of two molluscs, the land snail Arianta arbustorum and the Iberian slug Arion lusitanicus, have increased substantially in many places in the northern Fennoscandia in recent years. This has resulted in considerable aesthetic and economic damage to plants in home gardens and commercial nurseries. Birch tar oil (BTO), is a new biological plant protection product, and was tested against these molluscs. In this study we examined whether 2 types of BTO, used either alone, mixed together, or mixed with Vaseline®, could be applied as 1) a biological plant protection product for the control of land snails by direct topical spray application, 2) as a repellent against snails when painted on a Perspex® fence, and 3) as a repellent against slugs when... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2010 |
URL: http://orgprints.org/16887/1/lindqvist.pdf |
| |
|
|
|
