Field Performance of Entomopathogenic Nematodes against the Larvae of Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae)

Abstract

The ground beetles, Zabrus spp. Clairville, 1806 (Coleoptera: Carabidae) is one of the major pests of wheat plants across the world, and the control of this pest is a challenging issue. In the present study, the control potential of two local entomopathogenic nematode (EPN) species [Heterorhabditis bacteriophora Poinar, 1976 (Rhabditida: Heterorhabditidae) and Steinernema feltiae Filipjev, 1934 (Rhabditida: Steinernematidae)] against the larvae of Zabrus spp. was evaluated with two trials under field conditions in 2015. EPNs were applied at the concentration of 1 x 10 6 IJs m -2 to the soil surface in mid-April and the number of alive larvae was assessed 14 days after treatment (AT). In addition, Zabrus spp.damaged wheat plants were counted to establish the efficacy of EPNs on the larvae of Zabrus spp. in short (14 days AT) and long term (6 months AT). EPNs reduced the number of alive Zabrus spp. larvae by at least 50% as compared to the control treatments in both trials. Altgough there was a remarkable decrease in the number of Zabrus spp.-damaged wheat plants to which EPNs were applied, this decrease did not produce a significant effect. Present findings indicate that EPNs tested have a good potential for sustainable management of Zabrus spp.

Impact of Abiotic and Biotic Environmental Conditions on the Development and Infectivity of Entomopathogenic Nematodes in Agricultural Soils

“…Currently, preparations based on insecticidal nematodes are directed against thrips (Thysanoptera), diptera (Diptera), beetles (Coleoptera), and butterflies (Lepidoptera). Research on the effectiveness of EPNs against various pest species has been conducted under field and laboratory conditions [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. One of the advantages of using preparations containing these living organisms is that, following a single application, EPN populations can survive at the application site for a long time, producing new generations.…”

Bazı pestisitlerin entomopatojen nematodların (Rhabditida: Heterorhabditidae ve Steinernematidae) yönelimleri üzerine etkisi

“…Over the course of several years, EPNs have demonstrated remarkable efficacy in controlling agricultural pests (Koppenhöfer et al, 2020;Mokrini et al, 2020;Taşkesen et al, 2021). Their increasing adoption can be attributed to their ability for cost-effective mass production in bioreactors and their easy application through conventional spray equipment and drip irrigation systems (Wright et al, 2005;Susurluk & Ehlers, 2008;Shapiro-Ilan et al, 2012;Peters, 2013).…”