Effect of Adjuvants, Spray Volume and Nozzle Type on Metconazole Activity Against Leptosphaeria Biglobosa and L. Maculans During Late Spring Treatments in Winter Oilseed Rape

Effect of Fungicide Application on the Management of Avocado Branch Canker (Formerly Dothiorella Canker) in California

“…In our field trial, azoxystrobin + propiconazole, and metconazole had the greatest inhibition of internal and external growths of D. ibérica, N. australe, N. luteum, N. parvum, and Phomopsis sp. Metconazole, which had similar results to azoxystrobin -I-propiconazole in our field trial, was reported to be efficacious in oilseed rape protection against stem canker (Leptosphaeria maculans and L. biglobosa) (18) and other diseases (5,32). Applied alone, azoxystrobin reduced the disease severity of constriction canker of peach caused hy Phomopsis amygdale by 41% (19).…”

Monitoring blackleg (Leptosphaeria spp.) ascospore release timing and quantity enables optimal fungicide application to improved oilseed rape yield and seed quality

“…There are many studies connected with the effectiveness of fungicides in relation to various fungal diseases (West et al 2002a;Brazauskiene and Petraitiene 2004;Steed et al 2007;Karolewski et al 2009), but knowledge regarding their influence on plant physiology and quality of harvested seeds is poor. Most studies focused on the impact of single applications of fungicides on yield, but they have not examined in detail the relationship between fungicide treatment and plant health, seed yield and their quality in relation to spore concentration in the air.…”

Advances of Fungicide Application for Winter Oilseed Rape

“…The most harmful is infection of middle leaves, because senescence of the oldest leaves occurs before the pathogen has reached the stem, whereas the pathogen from younger leaves having reached the upper part of the stem causes less harmful damage (Steed et al, 2007). Most of the authors emphasise the importance of fungicide treatment in autumn, but there are converse data that the greatest additional yield has been obtained by spraying in spring at the beginning of flowering (Karolewski et al, 2009). There are very complicated relationships between the pathogen, the plant development, and the weather conditions which determine development of Phoma stem canker epidemic.…”