SIMCOL – A Decision Support System for integrated control of anthracnose on blue lupin

Authors

  • Paolo Racca ZEPP – Zentralstelle der Länder für EDV-gestützte Entscheidungshilfen und Programme im Pflanzenschutz, Central Institution for Decision Support Systems in Crop Protection, Bad Kreuznach
  • Beate Tschöpe ZEPP – Zentralstelle der Länder für EDV-gestützte Entscheidungshilfen und Programme im Pflanzenschutz, Central Institution for Decision Support Systems in Crop Protection, Bad Kreuznach

Keywords:

Colletotrichum lupini, anthracnose, Lupinus angustifolius, blue lupin, Decision Support System, integrated control

Abstract

The weather-based decision support system (DSS) SIMCOL for the anthracnose – lupin pathosystem was developed. SIMCOL forecasts the lupin growth development on the basis of temperature (in form of BBCH growth stages) and recommends based on temperature, relative humidity, precipitation and field specific information a control strategy for anthracnose (Colletotrichum lupini) of blue lupin (Lupinus angustifolius).

The DSS consists of the following 3 models:

–SIMONTO-Lupin: simulation of the BBCH development of L. angustifolius,

–SIMCOL1: calculation of the first disease occurrence and the beginning of the treatment in the field,

–SIMCOL3: calculation of dangerous infectious periods and scheduling of treatments with the help of a fungicide module (factors for the influence of seed contami­nation and seed treatment were also integrated).

For the analysis of the pathosystem and the modelling the following data-sets were used:

–Data from climate chambers to study the relationship between temperature, leaf wetness duration, plant growth stage and disease development. These data were used as a basis for the modelling of the disease efficiency,

–Literature data for the development of the SIMONTO-Lupin model,

–Historical data of field disease development from moni­toring activities for the models validation,

–Specific laboratory experiments to analyse the effect of fungicides on the disease development to obtain a fungicide efficacy factor.

The validation of SIMCOL1 and SIMONTO-Lupin was carried out with independent data from the Govern­mental Crop protection services of the federal states Brandenburg, Mecklenburg-Western Pomerania and Saxony-Anhalt, the seed breeder Saatzucht Steinach, the Julius Kühn-Institut (Federal Research Centre for Cultivated Plants) and the ZEPP and delivered good results.

The DSS is available since the season 2011 for advisory activities of the Governmental Crop protection services and for the seed producers.

DOI: 10.5073/JfK.2011.12.02, https://doi.org/10.5073/JfK.2011.12.02

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Published

2011-12-01

Issue

Vol. 63 No. 12 (2011)

Section

Original Article