Bioherbicidal Activity of (Formerly ) on Glyphosate-Resistant .

The effects of the bioherbicidal activity of the fungal phytopathogen, (AV), formerly , on glyphosate-resistant and -susceptible (horseweed) were examined in greenhouse and field studies. Spray applications of mycelial formulations of AV infected both glyphosate-resistant and -susceptible plants at various growth stages. Young plants in the rosette leaf stage of growth were controlled more efficaciously than were older plants that had bolted or that were in the inflorescence stage; nevertheless, severe injury and mortality also occurred in mature plants.

Immunohistochemical investigation of the necrotrophic phase of the fungus Colletotrichum gloeosporioides in the biocontrol of hemp sesbania (Sesbania exaltata; Papilionaceae).

Premise Of The Study: Fungal plant pathogens exert much of their effect on plant cells through alterations in the host cell walls. However, obtaining biochemical proof for this change is difficult because of the relatively small number of cells that are affected by the pathogen relative to the bulk of host tissue. In this study, we examined the differences in host wall composition between infected and uninfected areas of seedlings of the weed hemp sesbania (Sesbania exaltata) that were treated with the biocontrol agent Colletotrichum gloeosporioides.