Weeds are amongst the major serious agricultural pests of faba bean
(Vicia faba L.) production in Egypt and should be controlled. Clethodim is the
only post-emergence herbicide registered for grass weed control in faba beans in
Egypt. Two field separate experiments were conducted at Assiut University farm
in two different locations in 2021-2022. The first field experiment aimed to
evaluate the efficacy of some lipid–inhibitor herbicides (clethodim 24%,
clethodim 12%, clethodim + haloxyfop 22.6%, diclofop-methyl 36%,
fenoxaprop-p-ethyl 7.5%, quizalofop-p-ethyl 5%, and thiobencarb 50%) and
hand hoeing treatments for controlling the grass weed, Phalaris minor Retz in
faba bean. The second field experiment aimed to evaluate the effects of bentazon
48% herbicide on broad-leaf weeds in faba bean. Phalaris minor was the only
grass weed presented in the first experimental field, while Beta vulgaris L.,
Cichorium pumilum Jacq. and Ammi majus L. were the dominant broadleaf
weeds in the second experimental field. In the first experiment, all selected lipid–
inhibitor herbicides except fenoxaprop provided 89.49–98.58% in controlling P.
minor compared with the weedy control at 62 days after crop sowing. Among all
lipid–inhibitors, clethodim 24%, thiobencarb 50%, diclofop-methyl 36%, and
clethodim + haloxyfop 22.6% performed the highest increment (82.81–86.57%)
in faba bean yield versus control. In the second experiment, bentazon 48%
provided excellent efficiency against broadleaf weeds with weed reduction of up
to 95% and increased faba bean yield by 69.54% compared with the control at
68 days after crop sowing. In the current scenario, the grass herbicides
(clethodim 24%, thiobencarb 50%, diclofop-methyl 36%, and clethodim +
haloxyfop 22.6%) and a broadleaf herbicide (bentazon 48%) can be used as a
promising chemical herbicide option for the control of weeds in faba bean cv.
Giza 843 in Upper Egypt.
Research Abstract
Research Date
Research Department
Research Journal
Egyptian Academic Journal of Biological Sciences F. Toxicology & Pest Control
Research Member
Research Publisher
Egyptian Academic Journal of Biological Sciences F. Toxicology & Pest Control http://eajbsf.journals.ekb.eg/
Research Rank
-
Research Vol
Egypt. Acad. J. Biolog. Sci. (F. Toxicology& Pest control) Vol.15(1)
Research Website
DOI: 10.21608/EAJBSF.2023.294087
Research Year
2023
Research Pages
97-105