Document Type : Research Paper
Authors
Research Institute of Forests and Rangelands, Tehran, Iran
Abstract
Acording to result of the inverstigation the manna knows as Shekar Tighal is excretion of insect and obtained from the cocoon case of a beetle, larinus spp. This is found on the leaves and stalks of species of Echinops.
The cocoon collected from the Echinops orientalis. E. cephalotes in the North east (Ozgol 1750 m), North west (Kohedashteh 1800 m), West (Qazvin 1000 m), and South (parandak 1600 m) in province of Tehran. Species of Larinus in this province is Larinus mellificus (coloptera), (curculionidae).
Distribution in dry sandy places, wast places in hills and mountains.
Altitud of collection area between 1000-2000 m. There are species Echinops leiopolycoras, E.ritrodes and E. spp. In province of Tehran that some of them had no cocoon.
The time for collection sep-oct.
A decoction of Trehala was used to relieve respiratory ailments.
Keywords
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