Non-chemical Control Method for Management of Tomato Leafminer Tuta absoluta (Lep.: Gelechiidae) Using Biochar and Vermicompost Extracts
Subject Areas : Research On Crop Ecophysiology
Keywords: Keywords: Induced systemic resistance, Biochar, Non chemical control, Tomato, Biological control.,
Abstract :
-chemical Control Method for Management of Tomato Leafminer Tuta absoluta (Lep.: Gelechiidae) Using Biochar and Vermicompost Extracts ALYAA MAJID FADHIL AL-QURAISHI, ESMAEIL MAHMOUDI *, ALIREZA JALALIZAND Department of Plant Protection, Faculty of Agriculture, Water, Food and Nutraceuticals; Isf.C., Islamic Azad University, Isfahan, Iran *Corresponding Author: Esmaeil Mahmoudi Received: 28 February 2025 Accepted: 5 June 2025 ABSTRACT This research was aimed of investigating the effect of vermicompost tea and biochar, as plant growth enhancers, in reducing the population and damage of tomato leafminer. The experiment was performed in completely randomized design with five treatments (vermicompost tea 50/1000, vermicompost tea 75/1000, biochar 2/1000, biochar 4/1000 and control-normal water) in four replications on tomato plants. After three days of spraying the treatments, the number of larval tunnels on each pot was counted to check the effect of the treatments on the activity of the larvae. Then the second foliar spraying was done and twenty days later, active larval tunnels and adult insects were counted. The results showed that the average number of T. absoluta adults observed in the vermicompost tea treatment 50/1000 with 21.75, in the biochar treatment 2/1000 with 9, in the biochar treatment 4/1000 with 13.75, in the vermicompost tea treatment 75/1000 is 26 and and 31.5 in the control. In this study, after the first foliar spraying, tomatoes treated with biochar 2/1000 and biochar 4/1000 had the lowest number of mature moths. In the second foliar spraying of the treatments, biochar 2/1000 showed the best effect in reducing the active larval tunnels. Also, vermicompost tea 50/1000 and 70/1000 had similar effects. The results of the total number of larval tunnels also showed that the number of larval tunnels is very different in each treatment. The average number of tunnels after the first stage of foliar spraying of treatments in vermicompost tea 50/1000 is 43.75, in biochar 2/1000 is 19.5, in biochar 4/1000 is 26.75, in vermicompost tea 70/1000 is 55 and in the control is equal to sixty-nine. Keywords: Induced systemic resistance, Biochar, Non chemical control, Tomato, Biological control.
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