The effect of certain agriculture practices such as susceptibility of six broad bean varieties, space of planting, nitrogen fertilization levels, first irrigation and farmyard manure on the infestation of broad bean crop with the Aphis craccivora Koch was studied at El-Kawsar region, Sohag Governorate (about 495 km south of Cairo, Egypt) throughout the 2003/2004 and 2004/2005 seasons. The results obtained revealed that A. craccivora appeared from November until the second week of April. Also, the faba bean varieties were different in their susceptibility to the infestation with A. craccivora, dividing into three groups: the first one which was susceptible included Giza 674 and Giza Blanka; the second had low resistance and included Giza 843, Giza 2 and Giza 40; and the third group was moderate including Giza 429. The numbers of A. craccivora was significantly increased at 70 kg chemical nitrogen plus farmyard manure than at 40 or 55 units/feddan of chemical nitrogen during the two seasons. The population density of A. craccivora was significantly higher when decreasing the planting space. The population density of A. craccivora increased significantly with an increase of nitrogen fertilization levels during both seasons. The broad bean plants sown on 10 cm and which received N at a rate of 90 kg/fed. harboured the highest numbers of A. craccivora as compared with the other treatment (20 and 30 cm). The results show also that the broad bean plants which were irrigated at 56 and 63 days as a first irrigation harboured highly significant numbers of A. craccivora compared with the plants irrigated at 14, 21 and 28 days. These results also show significant negative correlation between the infestation of A. craccivora and the yield of broad bean plants.