Does grape leafhopper Arbordia hussaini (Hemiptera: Cicadellidae) effect on chlorophyll content of grape leaves?

Author:

Mohammed Youssif Ali,Ahmed Qasim,Arif Mokhtar Abdulsattar

Abstract

Abstract The leafhopper Arbordia hussaini is a phloem feeding pest of the grape leaves causing a drop in chlorophyll levels in the grape leaves, which decreases photosynthesis and causes drying of the leaves depend on the population density of insects and found in various grape varieties growing around the world. The direct effects of A. hussaini on biomass dynamics, particularly the chlorophyll content of grapevine leaves, are investigated in this study. the high population of A. hussaini were 19.33 insect adult per grape leave in the first of September, while the low density of A. hussaini was 0.11 insect adult per grape leave at the end of December that trapped in blue sticky trap. The high density of leafhopper was recorded on the variety of Kamali followed by the variety of Halawani and Faranci. Chemical analysis of the chlorophyll content between the uninfested and infested grape leaves with the grape leafhopper showed decreasing of chlorophyll content and has been given 19.03 and 15.11 mg/L of the Halawani variety for the uninfested and infested leaves, respectively. Whereas, th mean of chlorophyll content of uninfested and infested leaves was 24.63 and 18.85 mg/L for Faranci variety, respectively. Moreover, the comparession of chlorophyll content between uninfested and infested Kamali leaf variety was 23.69 and 12.30 mg/L, respectively. Finally, depending on the degree of the attack, the grapevine response to A. hussaini infestation that affects on grape leaves and photosynthesis. This research shows that leafhopper feeding on tree sap has a significant direct impact on the chlorophyll content of grape leaves.

Publisher

IOP Publishing

Subject

General Engineering

Reference25 articles.

1. Vine mealybugs disrupt biomass allocation in grapevine;Schulze-Sylvester;OENO One,2021

2. Fauna study of Cicadelliae (leafhoppers Family) on cotton fields of golestan province;Khormali;Iranian Journal of Cotton,2013

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