Chemical and Biological Control of Radish Leave Miner Insect Scaptomyza flava Fallen (Diptera:Drosophilidae) under the Conditions of Basrah Province

Hussain A. Mehdi*(1) Shurooq A. Najim(2) and Baidaa G. Aufi(3)

(1). Department of Plant Protection, Faculty of Agriculture, Basrah University, Basrah, Iraq.

(2). Natural History Museum, Basrah University, Basrah, Iraq.

(3). Department of Plant Protection, Faculty of Agriculture, Basrah University, Basrah, Iraq.

(* Corresponding author: Dr. Hussain Mehdi. E-Mail: protactionplan@gmail.com).

Received: 31/10/2019                                Accepted: 07/12/2019

Abstract

This study was conducted at the district of Shatt Al-Arab in Basra province in order to evaluate several pesticides and Beauveria bassiana fungi against radish leaves miner and to estimate the severity of the injury and damage to this insect. Results showed that the highest population density was in March 2016 (1.78 larva/leaf), where the highest infection rate was (76%), and the injury severity showed a significant differences among study intervals, where the injury locations recorded a significant differences among them represented by surpass of outer leaves on other locations (1.8%). All examined pesticides showed high affectivity in controlling the pest with a simple significant difference killing percentage performed by Super Saqr followed by Dragon and Sakhuy (92%, 85.6%, 82.2%) respectively where the lowest killing percentage was performed by biocontrol agent (54.4 %) after 72 h of treatment.

Keywords: Scaptomyoza flava, Radish leaf miner, Pesticides, Basrah, Iraq.

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