Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 430803
Title Crop adapted spray application (CASA) - precise and safe plant protection in fruit growing
Author(s) Doruchowski, G.; Balsari, P.; Marucco, P.; Zande, J.C. van de; Wenneker, M.
Source Aspects of Applied Biology 114 (2012). - ISSN 0265-1491 - p. 129 - 136.
Department(s) PPO/PRI AGRO Field Technology Innovations
Fruit
Publication type Refereed Article in a scientific journal
Publication year 2012
Abstract The Crop Adapted Spray Application (CASA) system for orchards integrates disease detection based on reflectance imaging, crop identification with ultrasonic sensors, wind measurement and DGPS navigation. Through the automatic adjustment of spray application parameters according to the crop characteristics, wind situation and sprayer position the CASA sprayer performs variable rate application of pesticides with drift mitigation scenarios in order to reduce pesticide input and hence improve the quality and safety of fruit and protect sensitive areas (e.g. surface water) from contamination. The spray savings between 31% and 82% as well as improved spray distribution within crop canopy and reduced spray loss to ground were achieved, without affecting on-target deposition and disease control efficacy, compared to conventional spray application. The drift mitigation scenarios, being different combinations of nozzles and airflow settings, showed more than 80% drift mitigation potential without significant decrease of spray deposition in the tree canopies.
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