A new approach to monitor and assess the damage caused by two-spotted spider mite
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A new approach to monitor and assess the damage caused by two‑spotted spider mite Tahsin Uygun1 · Mehmet Metin Ozguven1 · Durdane Yanar2 Received: 26 February 2020 / Accepted: 16 October 2020 © Springer Nature Switzerland AG 2020
Abstract This study uses an image-processing technique to determine the damage level caused by two-spotted spider mite (Tetranychus urticae Koch) to cucumber plants and changes in the number of mites in a greenhouse. Firstly, a new agricultural platform was developed to ensure camera stability for capturing quality images. The images of 50 leaves infested with T. urticae were captured weekly for 5 weeks with the platform, which resulted in 250 images. Fifty of these captured images were randomly selected and processed with an image-processing algorithm developed using an image processing toolbox module of MATLAB. The results obtained from the image processing algorithm were compared with expert observations. The image-processing method predicted the damage with 3.91 root mean squared error (RMSE). A highly significant positive relationship was found between image processing and expert observations. The results indicate that this new image-processing method may be successfully used in place of expert observation to determine T. urticae damage in greenhouses. Keywords Agricultural robots · Agricultural platforms · Image processing · Two-spotted spider mite · Cucumber
Introduction Ensuring economical, sustainable and productive management of available resources is a prime objective of agricultural production. Alternative solutions are being developed to facilitate agricultural production in various areas such as increasing productivity and product quality, minimum input usage, food reliability, and protection of natural resources and the environment (Ozguven 2018). Various sensor and control systems developed in precision agriculture have made, for example, pesticide spraying cost effective with low environmental impact (Özgüven 2018). Disease and pest attack cause substantial economic and yield losses in agricultural production throughout the world (Savary and Willocquet 2014; Avelino et al. 2015). Scientific studies on the relationship between host plant growth stages and pest population * Mehmet Metin Ozguven [email protected] 1
Department of Biosystems Engineering, Tokat Gaziosmanpaşa University, 60150 Tokat, Turkey
2
Department of Plant Protection, Tokat Gaziosmanpaşa University, 60150 Tokat, Turkey
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Vol.:(0123456789)
Experimental and Applied Acarology
growth are highly relevant—here, we focus on one economically important global pest, the two-spotted spider mite (Kabiri et al. 2012; Cazaux et al. 2014; Bensoussan et al. 2016; Rioja et al. 2017). The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is one of the most important pests, feeding on cell contents of 1100 plant species including 150 crops globally (Bensoussan et al. 2016). Development of resistance to a wide array of insecticides and acaricides in T. urticae populations is
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