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| 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 |
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| 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 |
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| 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 |
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