Factsheet DSS large Narcissus fly
This model Large Narcissus Fly Model predicts the timing of adult emergence, egg laying and egg hatching, enabling users to undertake targeted monitoring and/or mitigating actions to reduce the risk of damage to the crop. A series of development rate equations form the basis of the simulation model and are linked together in a program. The model simulates the development of cohorts of 500 individuals through adult emergence, egg laying and hatching. The model uses soil temperatures or air temperatures depending on the stage of development. As multiple cohorts progress simultaneously, adult emergence, egg laying and/or egg hatching can occur at the same time. The start date for the model is 1st February, as this is often the coldest period in the year. The DSS shows information about the development of the large Narcissus fly during the growing season. The Large Narcissus Fly forecast requires hourly soil temperatures at a depth of approximately 6 cm and hourly air temperatures. This model requires historic data to provide risk forecasts. At present, suitable historic data is only available for a limited number of locations; please select ‘Edit Parameters’ and select the most appropriate location. The DSS Large Narcissus Fly Model was developed at University of Warwick (Warwick Crop Centre) and was adapted from work carried out in the UK.
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- 11-04-2024
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- English
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