Abstract

An exclusive study of weeds spread in Alqatten Directorate farms in Hadramout Governorate was carried out from 20/10/2015 to 20/11/2016. The aim of this study is to identify the types and number of weeds in the farms. The study area included 16 farms in 4 different regions. 42 plant species belonging to 22 plant family were identified. Grassy family was the most present with 7 species on this average of 16.67%. The most wide spread grass was، Cynodon dactylon and Setaria verticillata; as they were found in all studied farms, while Heliotropium longiflorum and Maerua crassifolia، were less prevalent، as they found separately (one in each farm). The study revealed that there is a difference in the number of weed plants in the farms studied. The high number of weed types was found at AL-Rashasha farm in Alaqqad area where 29 types of the total number of types were found in the place of the study on an average of 69%. The minimum number of weeds was found at Alkaraba area, in Al –Moustagbal farm where 11 types were on an average of 26.19% of the total number of types found in the place of study.