Inhibitory Effect of <i>Nesidiocoris tenuis</i>（Hemiptera: Miridae）on <i>Tomato yellow leaf curl virus</i>（TYLCV）Transmission by <i>Bemisia tabaci</i>（Hemiptera: Aleyrodidae）in Greenhouse Tomato

Abstract

Nesidiocoris tenuis Reuter has good potential as a biological control agent for Bemisia tabaciGennadius on tomato. There is a possibility that this predator also controls Tomato yellow leaf curl virus TYLCV transmission by B. tabaci. In this study, four treatments were compared: 1 50 N. tenuis/plant 3 times released 150 NR , 2 25 N. tenuis/plant 2 times released 50 NR , 3 5 N. tenuis/plant 2 times released 10 NR , and 4 insecticide treated as a conventional control, to evaluate the inhibitory effect of the predator on TYLCV in greenhouse tomato. The infection rate for TYLCV was significantly lower in 150 NR than 10 NR during the experiment. Additionally, the B. tabaci density was significantly lower in 150 NR and 50 NR than 10 NR. These results suggest that TYLCV transmission by B. tabaci was inhibited by N. tenuis. However, it is difficult to control TYLCV only by N. tenuis or insecticides, because the infection rates for TYLCV and rates of viruliferous B. tabaci of TYLCV were 89 100% and 70 80%, respectively, at the end of all treatments. Therefore, N. tenuis is recommended for use as a biological control agent in integrated pest management for TYLCV.

Induction of Glandular Trichomes to Control Bemisia tabaci in Tomato Crops: Modulation by the Natural Enemy Nesidiocoris tenuis

“…Biological control of plant herbivores by N. tenuis can have increased effects if plant herbivores transmit viruses. This is the case of B. tabaci as a vector of TYLCV in tomatoes; thus, N. tenuis can provide increased virus control (Tsuchida et al 2017). Additionally, benefits derived from the phytophagous behavior of this biocontrol agent regarding the induction of plant defensive signaling pathways have enhanced the advantageous use of N. tenuis in biological control strategies (Tortorici et al 2022;Pérez-Hedo et al 2022).…”

Towards the Management of Whiteflies（Hemiptera: Aleyrodidae）in Greenhouse by Using Acoustic and Vibrational Methods

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