AIP Conference Proceedings [AIP Publishing THE 7TH INTERNATIONAL CONFERENCE ON APPLIED SCIENCE AND TECHNOLOGY (ICAST 2019) - Karbala City, Iraq (27–28 March 2019)] THE 7TH INTERNATIONAL CONFERENCE ON APPLIED SCIENCE AND TECHNOLOGY (ICAST 2019) - Study on Alternaria alternate, Fusarium chlamydosporum accompanying the Eucalyptus camaldulensis L. trees in some regions of Kerbala province/Iraq and identification of isolate with PCR technique