The weed control by herbicides and their effects on gladioli was evaluated on a field experiment on sandy-loam soil on CV Spick and Span and White Friendship. Trifluralin and EPTC were applied pre-plant incorporated and chloroxuron, DCPA, diphenamid, pendim et halin and diuron in pre-emergence. Grass species were predominant in the area and were controled by all herbicides except chloroxuron. Control by EPTC was of 83% and over 90% by all others. The broadleaves were controled in the following decrescent order: pendimethalin, chloroxuron, diuron , trifluralin, EPTC, DCPA and diphenamid. Only EPTC affected the sprouting of bulbs, causing also growth retention and delaying of flower set. The flowers stems were cut off a the opening of the first flower, measured and weighted. EPTC caused significant reduction in weight of CV Spick and Span and trifluralin , EPTC, chloroxuron and pendimethalin of CV White Friendship.
herbicides; gladiolus; weed control