Canola has outstanding as a great winter crop option and nowadays occupies the fourth place among oil species in production. One of the major difficulties in canola cultivation is the harvest season, because its pods do not show maturation uniformity. A technique that may be used to facilitate the harvest is the use of desiccants. Therefore, this study aimed to evaluate desiccation effect, in distinct pods maturation in canola crop. The work was conducted in field conditions, in Terra Roxa […]

The use of herbicides in turf grasses is a promising technique, since required precautions regarding the selectivity. In order to evaluate the selectivity and effectiveness of Kapina® and Kapina Plus® herbicides in controlling Cyperus flavus and Cyperus rotundus in Zoysia japonica and Cynodon dactylon, two experiments were conducted in green house conditions. Applications were performed with a CO2 pressurized spray, using application fee of 250 L ha-1. Kapina® e Kapina Plus® herbicides, from 750 mL ha-1, showed excellent control of […]

Caupi bean is grow by small farmer’s family using low technological level, where weeds management is conducted by hoeing, and an exhausted practice with low efficiency action. The objective of this study was to evaluate herbicides selectivity and control weeds efficacy in caupi crop, BRS Guariba cultivar. The experiment was conducted in field conditions with the application of herbicides (g a.e. ha-1) sulfentrazone (500) e oxadiazon (600), in pre emergence conditions, and bentazon (600), bentazon + paraquat (39 + 62), […]

In order to validate the hypothesis that sugarcane crop adequately fertilized is less damaged by herbicides, phytotechnical characteristics and isoenzyme profiles of α-esterase and peroxides in IACSP96-2042 and IACSP95-5094 sugarcane genotypes were evaluated, submitted to different planting fertilizers and treated or no with herbicides. In field conditions, two experiments were conducted, one for each cultivar, in vases (43 L), by using the randomized completely design with treatments arranged in factorial scheme 3 x 3 + 1, with four replications. The […]

Safeners are chemicals applied to crops, usually by seed treatment, to improve their tolerance to herbicides. The objective of this research was to evaluate the potential use of dietholate as a safener for pre-emergence applications of clomazone in common beans. Treatments were arranged in a factorial combination 2 x 5 x 6 composed by two herbicide treatments (without or with clomazone at 750 g ha-1), five doses of dietholate (0, 125, 250, 375 and 500 g. a.i. per 100 kg […]

Cynodon spp. specie is the predominant grass frequently used in fairways, greens, tees and roughs of golf courses, but does not necessarily requires intense preventive maintenance. In order to evaluate the selectivity of Kapina® and Kapina Plus® formulations herbicides for Cynodon spp. Tifway 419, in fairway of golf camp, an experiment was conducted on turf grass belonging to Maringa Golf Club. Experimental design used was randomized blocks, with seven treatments and four replications, constituted by Kapina® (750, 1500 and 2250 […]

This study aimed to evaluate the control of red rice and the selectivity to commercial mutant rice varieties under application of imidazolinone herbicides. The experiment was installed in completely randomized blocks design, under factorial scheme 4×4, with four replications. Factor A was composed by the herbicides and Factor B by doses of these herbicides. The herbicides and doses were: imazethapyr + imazapic [(0.00; 37.50 + 12.50; 75.00 + 25.00 and 150.0+50.00 g ha-1) + Dash 0.5 v v-1], imazapyr + […]

The experiment was conducted with the objective of evaluating the selectivity of herbicides, applied in different times, in ornamental turf grasses. The first experiment was conducted in greenhouse conditions in randomized entirely design, with four replications, in a 4 x 5 x 2 factorial scheme. The factors corresponded to the pre-planting application herbicides ( sulfentrazone – 800 g ha-1, s-metolachlor – 1440 g ha-1 and atrazine – 2000 g ha-1 and  control without herbicide application) in five species of turfgrass: […]

Weed interference can cause severe damages to common bean grain yield. Although the use of herbicides is considered as an efficient means to control weeds, there are just a few alternatives to use in pre-emergence applications. The objective of this work was to evaluate the potential use of pre-emergence applications of clomazone for five cultivars of common bean. Experiments were carried out under greenhouse conditions in a completely randomized design, and the treatments were increasing rates of clomazone (0, 300, […]

Experiments were conducted in Prudente de Morais County, Minas Gerais State, in 2010 and 2011 years, with the objective of to evaluate selectivity and efficiency of pre and post-emergence herbicides in sunflower crop, as well as to study weeds populacional dynamic. The work conducted in 2010 was carried out in greenhouse, in a randomized complete block design, with 11 treatments and three replications. Treatments consisted by ten herbicides, four in pre emergence and six in post-emergent of the crop (alachlor, […]