Interaction between seed treatments, surfactants and foliar fungicides on controlling dry bean anthracnose (Colletotrichum lindemuthianum)

Plant health and yield of dry bean not affected by strobilurin fungicides under disease-free or simulated hail conditions

“…ha (1 , respectively) significantly reduced the pick value of the harvested dry bean seeds compared with the untreated control (Table 1). Similar observations on the effect of azoxystrobin and pyraclostrobin on dry bean pick have been previously reported (Pynenburg et al 2011;Gillard and Ranatunga 2013;Gillard et al 2012a, b) where they represented reductions in foliar disease severity compared with a control treatment. In the current experiment, since foliar diseases were absent, an increase in seed quality (i.e., a lower pick value) could signify a plant health benefit (Anonymous 2008).…”

“…However, as with 100-seed weight, this effect was inconsistent across environments; azoxystrobin increased yields of dry bean not infected with anthracnose compared with the non-infected control under low disease conditions (Gillard et al 2012b), contrary to the current experiment. Furthermore, Gillard and Ranatunga (2013) also reported yield increases compared with the control using azoxystrobin or pyraclostrobin under low disease severity conditions.…”

“…Even with the addition of a simulated hail stress, azoxystrobin and pyraclostrobin had no effect on pick value, seed weight, or dry bean yield. When environmental conditions were conducive for disease, strobilurins have been shown to protect dry bean plants as yield from treated plants tend to be greater than untreated controls (Rodrigues et al 2009;Pynenburg et al 2011;Demant and Maringoni 2012;Gillard et al 2012a, b;Vigo et al 2012;Gillard and Ranatunga 2013). However, the results of the current study indicate that dry bean management decisions, such as the application of azoxystrobin or pyraclostrobin when growing conditions are unfavourable for disease development (Kyveryga et al 2013), should be weighed against economic returns on investment (Henry et al 2011;Mahoney et al 2014b) and the potential risks associated with disease resistance development.…”

Microwave radiation effect with and without chemical seed treatments on halo blight infected seed, seed germination, plant vigour, and yield of dry beans

“…All sample weights were adjusted to a standard storage moisture of 18% and converted to seed yield in kg ha −1 . Using the modified equation listed below, return on investment (ROI) was calculated for each treatment (Gillard and Ranatunga 2013):…”

Effect of initial inoculum on growth and fatty acid content as an α-glucosidase inhibitor in Colletotrichum sp. TSC13 mycelium that cultures under shake and static conditions

“…In many plant species, Colletotrichum is a genus of fungi that commonly known as the pathogens causing the anthracnose disease [1][2][3][4][5][6]. However, this fungal species also showed potential bioactivities by producing bioactive compounds such taxol, phillyrin, oleic acid etc., that may potentially be used in the development of anti-microbial, antioxidant, anticancer and anti-diabetes drugs [7][8][9][10][11].…”