التسجيل الأول لمرض التعفن الفحمي (الماكروفومينا)‎ على البطيخ

Abstract EN

Identification of Macrophomina phaseolina causes charcoal rot disease on cantaloupe .This recording is the first on the melon crop in Iraq.

Pathogencity was tested on stems of melon plants.

The symptoms developed in four days after inoculation which began with the appearance of brunette water lesion or brown in the areas of inoculation at a level of Soil surface soon expanded and extended to the higher stems to form canker with secretions gum in infection areas .

Then the produced small sclerotia inside and outside the infected stems tissue while not showing any symptoms of the control plants .