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Collaborative Project: Evaluation of biological seed treatments as protective agents against two major pests in rapeseed - Subproject 2 (InRaps)

Project


Project code: 2814900215
Contract period: 15.06.2017 - 14.10.2020
Budget: 63,349 Euro
Purpose of research: Applied research
Keywords: Sustainable plant protection

Due to the decreasing acceptance of pesticides in agriculture, the aim of the InRaps project was to investigate environmentally friendly seed treatments (USB) to protect young oilseed rape plants against herbivory by flea beetles and the cabbage fly. Therefore, a collection of microorganisms, plant extracts and substances was screened for effects on plant growth and feeding resistance against both insects. In addition to direct protective effects on these insect pests, indirect effects of USB on enhanced plant growth and changes in plant defensive traits were evaluated. Treatments with USB at the business partners was followed by feeding tests and biochemical analyses at the University of Göttingen with some USB showing positive effects under laboratory conditions. The most promising USBs were tested in field trials and optimized for seed application. Although no USB achieved the protection of a seed treated insecticide, some USBs strengthened plant growth and reduced feeding by both insect pests.

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