Effect of medicinal plants against common pistachio psyllid under laboratory conditions

Subject Areas : entomology and othea arthropods

حسن  زین الدینی ¹ (کارشناسی ارشد، گروه حشره‌شناسی، واحد رفسنجان، دانشگاه آزاد اسلامی، رفسنجان، ایران)
زهرا  sheybani ² (استادیار، گروه حشره‌شناسی، واحد رفسنجان، دانشگاه آزاد اسلامی، رفسنجان، ایران)
محمد رضا  hasani ³ (استادیار، گروه حشره‌شناسی، واحد رفسنجان، دانشگاه آزاد اسلامی، رفسنجان، ایران)

Received: 2022-01-10 Accepted : 2022-05-17 Published : 2022-05-22

Keywords:

Abstract :

Agonoscena pistaciae Burckhardt and Lauterer (Hemiptera: Aphalaridae) is the most important key pest of pistachio trees in Iran. Chemical control is the most effective and accessible method to control this pest. But, the environmental problems caused by the overuse of the synthetic insecticide have been a source of concern in recent years. Botanical insecticides are recognized as proper alternatives to conventional insecticides. Therefore, this study was conducted to determine the toxicity of extracts from Achillea millefolium L. (Asteraceae) and Carum copticum L. (Apiaceae) against 5th instar nymphs of common pistachio psyllid, Agonoscena pistaciae Burckhardt and Lauterer (Hemiptera: Aphalaridae) under laboratory conditions.. Bioassay was carried out using a dipping technique. Probit analysis of concentration-mortality data was conducted to estimate the LC50 value. The results showed that A. millefolium and C. copticum extracts were effective on A. pistaciae. C. copticum with an LC50 value of 749.95 mL/L was more toxic than A. millefolium (914.33 mL/L) on 5th instar nymphs of A. pistaciae. But, according to the LC50 values, no significant differences were observed between A. millefolium and C. copticum 24 h post-treatment. Our results suggest that the extracts of A. millefolium and C. copticum are suitable compounds to control of A. pistaciae