The present work was carried out to record the major insect pests attacking faba
bean plants and their related predators, from the 2^nd week of January to the 1⁵¹ week
of April, 2004, at Moshtohor region (Qalubia Governorate). In addition, the effects of
each of five treatments; Mesrona oil, Castor oil, Beauveria bassiana, Vertemic and the
chemical insecticide Confidor, were evaluated, against major insect pests (including,
Aphis craccivora Koch., Empoasca spp., Thrips tabaci (Linn.) and Liriomyza trifo/ii
(Burg.)), which were found. The obtained data revealed that, A. craccivora
(344.82±238.33 individuals! season), was the most abundant on this crop. While, the
two predatory species Crysoperf/a camea (Steph.) and Coccinella undecimpunctata
Linn. were the most abundant predators (where, the total number was 56 individuals!
season, for each of them), in faba bean field. Data also indicated that, Confidor was
the most effective compound against the previous pests, followed by Vertimec,
Mesrona oil, B. bassiana and Castor oil, respectively. This chemical insecticide
induced the highest percentages of reduction in the population densities of the
different key pests. Moreover, the effects of such materials were evaluated on
resulted crop yield; including green and dry pods, seeds protein contents and finally,
the quantity of crop yield. Accordingly, using alternative insecticides such as mineral
oils, plant oil seeds, bioinsecticides containing the fungus B. bassiana and natural
insecticides containing Abamectin, may be recommended when planning and
promoting I.P.M. programs against major pests of faba bean plants, as contributing
materials containing a degree of safety for man and his surrounding environment.