The Effects of Eichhornia crassipes on the water resources

Eichhornia crassipes transfered to Iraq from Egypt in order to use as garnish plants in plantation in military channel region in Baghdad, and transferred to Tigris River, then spread in rivers, streams and irrigation stations in Karbala city and Dhi Qar city.Eichhornia crassipes is the most serious aquatic plants affecting the water resources in most countries , which is one of the most dangerous jungles of the world , widespread and endemic in a region is a disaster of those regional water and cause devastating case and cause significant economic losses due to the quickly spread of this plant.There are three generally methods used to control Eichhornia crassipes invasion (mechanical method, chemical method, biological method).The mechanical method is the oldest method used in treatment this herb, chemical method used in very high spread of herb, while biological method is very effective without any environmental effects.