Spreyleme ve Toprak Enjeksiyonu Yöntemleri ile Toprağa Uygulanan Entomopatojen Nematodların Şeftali Bahçesinde Kalıcılığının Belirlenmesi

Entomopathogenic nematodes (EPN) are effective biological control agents against underground and under bark pests. Persistency and survival of EPN in soil after soil application is important for long term success of management programs. In this study, determination of soil persistency of 4 native EPN species after surface spraying and soil injection applications in a peach orchard. In the study, S. feltiae (96), S. carpocapsae 1133, H. bacteriophora 1144 and S. affine 47 species were applied in 30 l water with 140.000 IJ/tree dose per tree by surface spraying and soil injection methods. EPN were applied to soil with a watering can in surface spraying method and with a pulverizator into 5-15 cm depth in soil injection method. After application monthly soil samples were collected and EPN presence was tested with G. mellonella larvae and White traps in the laboratory. The study was conducted for 2 times in 2018 and 2019. At the end of the study, EPN persistency in soil in 2018 was 90 days and 150 days in 2019. With the data gathered from the study in mind, it is thought EPN have a potential in biological control against agricultural pests.