Factsheet DSS Saddle gall midge in cereals
Saddle gall midge (Haplodiplosis marginata) is a sporadic pest of cereals, which usually persists at low population levels. Yield loss can be caused by constricted vascular supply to the ears as a result of larval feeding and by lodging of gall-weakened stems in high winds. Pupae overwinter in the soil, from which adults emerge in the spring to lay eggs on vulnerable crops. Damage is caused by subsequent larval feeding. Once larvae have crawled under the leaf sheath, they cannot be controlled using contact treatments (e.g. insecticides). Control with help of DSS Saddle gall midge model on platform.ipmdecisions.net. This DSS indicates the best time to monitor crops for infestations (start of emergence). If abundance is high, and non-chemical management options are unlikely to achieve adequate control, treatment needs to be applied before, or soon after oviposition. DSS assumes the earliest date of emergence of saddle gall midge to be after 500 day degrees. User must interpret the reported risk against the vulnerability of the crop growth stage on farm and undertake in field monitoring to assess the abundance of emerging adults. The DSS starts on the date of first rainfall on or after the 1st March and ends at the end of July. The DSS uses accumulative daily temperature (500-degree days above 0 degrees) and rainfall. The DSS predicts proportion of cumulative emergence of the saddle gall midge, the associated risk and recommended action. This DSS was adapted from work carried out in the UK, and is considered applicable, but not yet validated in, Belgium, Luxembourg, Netherlands, France, Germany, and Denmark.
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Подробна информация за приноса
- Местоположение
- Europe
- United Kingdom
- Автори
- L. Langner
- Цел
- Decision-making support
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- 967 kB
- Създаден на
- 15-03-2023
- Език на произхода
- English
- Официален уебсайт на проекта
- IPM Decisions
- Лиценз
- CC BY
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