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Provedor de dados:  Organic Eprints
País:  Germany
Título:  Controlling potato beetles with Bt
Autores:  Dierauer, Hansueli
Weidmann, Gilles
Siegrist, Franziska
Data:  2017
Ano:  2017
Palavras-chave:  Crop health
Protection Root crops
Resumo:  Check the state of infestation • When the potato plants start to emerge, walk the field every 7 days in a straight line and check plants at regular intervals. • If clusters of eggs are found on more than every third plant, apply Novodor four days after discovering the first clusters. Apply the agent • Dissolve 5 l of Novodor in 500 l of water per hectare of potatoes. • Novodor can be applied together with copper products. Optimal conditions: • The potato beetles are still in an early larval stage (L1 to L2). • Temperature between 15 °C and 25 °C. • Avoid direct sunlight: spray late in the evening or when the sky is overcast. • No rain is due within 8 hours after spraying. Comments • After a successful treatment, the larvae will turn black after a few days. • If the effect is insufficient, the larvae will stay mobile. In this case, the treatment should be repeated within the following 10 days.
Tipo:  Practice tool
Idioma:  Inglês

{Tool} Controlling potato beetles with Bt. Creator(s): Dierauer, Hansueli; Weidmann, Gilles and Siegrist, Franziska. Issuing Organisation(s): Research Institute of Organic Agriculture FiBL. OK-Net Arable Practice Abstract, no. 031. (2017)
Formato:  application/pdf


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