Survey of five useful pesticides effects on the population of the plum bud gall mite, Acalitus phloeocoptes (Nalepa, 1890) (Eriophyoidea: Eriophyidae) in Miandoab orchards

Subject Areas : Plant Pests

Fatemeh  Houshyari ¹ (Former Ms. student, Department of Plant Protection, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran)
Shima  Rahmani ² (Assistant professor, Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iran)
Parisa  Lotfollahi ³ (Associated professor, Department of Plant Protection, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran)

Received: 2023-02-04 Accepted : 2023-02-04 Published : 2022-08-23

Keywords: Acaricide, Bud gall mite, Plum orchards,

Abstract :

The plum bud gall mite, Acalitus phloeocoptes (Nalepa, 1890) (Eriophyoidea: Eriophyidae) is one of the new and destructive pests on plum trees of West Azerbaijan province. In this study, with the aim of assessing the phenology of the hibernating mites’ emergence in the plum orchards, Shablon cultivar, the mites were trapped with the sticky bands and counted every seven days. At the same time, the phenology of the plum trees was considered and photographed. Also, the effects of five useful pesticides including Propargite 57% (Omite® EC), Abamectin 1.8% (Vertimec® EC), Fenpyroximate 5% (Ortus® SC), Diflovidazin 20% (Flumite® SC), and Sulfur 80% (Sulfur® WP) were evaluated against population dynamics of this pest in the plum orchards of Miandoab region. These chemicals were sprayed on the aerial parts of the trees at the recommended rate and the live mites were captured using the sticky bands. The phenological results showed that most individuals emerged on 4th May, during the falling petals. In addition, the sampling after seven and fourteen days post-spraying illustrated that all of the pesticides had a significant effect on the mite (P<0.01). Thus, all of the five chemicals could be useful for control of the bud gall mite in the condition of the Miandoab region. Also, additional studies are necessary for the management of this pest during longer intervals in different climatic conditions.