Two field experiments were conducted at Giza, Egypt in the winter seasons of 1990 and 1991, to study the effects of two fungicides (Dithane M45 and Saprol), two insecticides (Rogor and Pirimor), two acaricides (Tedifol and Comite) and two herbicides (Lancer and Cobex) on some morphological characters and yield of broad bean. The investigated pesticides were used at the recommended doses.
All pesticidal treatments reduced the percentage of missing plants at harvest. They also, except Lancer, led to an increase in the total yield of green pods and dry seeds. Individual treatments of Saprol, Dithane M45 and Cobex significantly increased the number and weight of green pods/plant and yield of dry seeds/plant. The individual treatment by Pirimor or Rogor also led to an increment in yield of dry seeds/plant. Lancer proved to be toxic to broad bean plants, as it caused a reduction in the number of branches and plant productivity of green pods and dry seeds.