ORIGINAL ARTICLE
Economic injury level of olive psyllid Euphyllura straminea Loginova (Hemiptera: Aphalaridae) in northwestern Iran
Aref Marouf 1, A-F  
,   Mohammadreza Abbasi Mojdehi 2, A-C,   Shamsollah Najafi 3, B
 
More details
Hide details
1
Plant Protection Department, Agricultural and Natural Resources Research Center of Zanjan Provinces (AREEO), Iran
2
Plant Protection Department, Agricultural and Natural Resources Research Center of Guilan Provinces, Iran, Iran
3
Plant Protection Department, Agricultural and Natural Resources Research Center of Zanjan Provinces, Iran
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article
CORRESPONDING AUTHOR
Aref Marouf   

Plant Protection Department, Agricultural and Natural Resources Research Center of Zanjan Provinces (AREEO), Km 7 of Airport road, 4533147183, Zanjan, Iran
Submission date: 2020-09-20
Acceptance date: 2020-12-23
Online publication date: 2021-02-16
 
 
KEYWORDS
TOPICS
ABSTRACT
The olive psyllid Euphyllura straminea Loginova (Hemiptera: Aphalaridae) is one of the most important pests of olive trees in Iran. To determine this pest's economic injury level (EIL) and to evaluate the relationship between density of nymphs (DON) and yield loss, different densities of olive psyllid nymphs were maintained on olive trees by different insecticide concentrations. Counting nymphs on olive terminal shoots was done to determine nymph abundance at the end of nymphal stage. Different densities of olive psyllid nymphs resulted in significantly different yield losses of olive trees. Regression analysis was used to determine the relationship between nymph density and yield loss. Considering pest management costs, the market value of olive, and insecticide efficiency, economic injury levels were evaluated from 4.08 to 7.14 nymphal days. The olive psyllid EIL values could be used to plan a pest control program in Zanjan and Guilan provinces.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
eISSN:1899-007X
ISSN:1427-4345