Abstract: Background: Volunteer Acacia mangium represent a major challenge in Eucalyptus plantations due to the large seedbank remaining in the soil. The use of pre-emergent herbicides with residual effects is essential for achieving effective control of these weeds. Objective: To identify effective pre-emergent herbicides, with residual effects for controlling volunteer A. mangium in Eucalyptus plantations. Methods: Completely randomized design (CRD) was used with 4 replications. Trays (50 × 33 cm) were filled with a loamy topsoil from commercial plantations. Each […]

Abstract Background The direct seeding system can be an alternative to reduce costs and labor in onion production, as it does not require the steps of production and transplantation of seedlings. However, this system results in early weed interference, lengthening the critical period of interference prevention. Objective To evaluate the selectivity of herbicide applications with residual activity on onions. Methods Three studies were carried out in a greenhouse. The first was carried out in a 5 x 4 factorial scheme, […]