Kirkuk University Journal for Agricultural Sciences (KUJAS)

The effect of the feeding of Pistachio gall aphid Forda hirsuta Mordvilko (Hemiptera:Aphidoidea:Pemphigidae) in the galls histological structure.

https://doi.org/10.58928/ku18.09320
Volume 9, Issue 3
Summer 2018
Page 172-176
Kirkuk University Journal for Agricultural Sciences (KUJAS)

Document Type : Research Paper

Authors

Shatha H. Ahmmed 1
Nazar M.T. Al-Mallah 2
NabeelA. Mawlood 2

1 University of Mosul - College of Agriculture

2 University of Salahaddin - College of Agriculture

Abstract
The results of current study showed that the aphid of tuberclosis Forda hirsuta on Pistachio leaves was recorded for the first time in Iraq. Histological cross-sections of the galls made by this aphid on pistachio leaves showed variable damages as result of their feeding on pistachio leaflets in accordance with the size of the galls. It is found that the small galls don't show an apparent damage whereas medium galls clearly doubled the epidermal cells and increased cuticle thickness with an increase in tannins and the number of Schizogenous and laticiferous ducts .Large galls showed clear changes in the number,shape and size of the hypodermal cells as well as increase in the thickness of cuticle, the destruction of phloem tissue cells and the exchange of wood and phloem sites in a single vascular bundle along with an increase in the number of schizogenus ducts and the amount of tannin compared with the un infected leaflets.

Keywords

gall aphids
Pistacia
fed histological structure
Forda hirsuta
Subjects

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