Effects of Microelements on Downy Mildew () of Sweet Basil.

We recently demonstrated that spraying or irrigating with Ca, Mg and K reduces the severity of sweet basil downy mildew (SBDM). Here, the effects of Mn, Zn, Cu and Fe on SBDM were tested in potted plants. The effects of Mn and Zn were also tested under semi-commercial and commercial-like field conditions.

Non-target-site glyphosate resistance in Conyza bonariensis is based on modified subcellular distribution of the herbicide.

Background: Conyza spp. were the first broadleaf weeds reported to have evolved glyphosate resistance. Several mechanisms have been proposed for glyphosate resistance.

From sensitivity to resistance - factors affecting the response of Conyza spp. to glyphosate.

Background: Conyza bonariensis and C. canadensis are troublesome weeds, particularly in fields with minimum tillage, on roadsides and in perennial crops. The distribution of these difficult-to-control species is further increased by the spread of glyphosate-resistant populations.