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Diversity of Pseudomonas and Pantoea species isolated from discoloured rice grains in Italy
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Protezione della vite dall'oidio con meptyldinocap
No full textField trials were carried out in 2006 and 2007 to evaluate the efficacy of meptyldinocap
against grape powdery mildew, in comparison with the commercial fungicides penconazole
and spiroxamine. Fungicides were applied as preventative or as curative at increasing level of
disease incidence. Meptyldinocap applied as preventive obtained the highest efficacy, whereas
applied as curative had lower efficacy at increasing disease incidence. Its efficacy was not
significant different from other commercial fungicides. The results obtained showed that
meptyldinocap has the same efficacy of dinocap, at 60 ml/hl seems to have a persistence
shorter than 10 days and applied as curative does not stop the spread of the disease on clusters
Razionalizzazione della difesa del riso da elmintosporiosi e brusone
No full textEpidemics of rice brown spot and rice blast were monitored for several years on different
cultivars. We evaluated the efficacy of known and new fungicides applied at different doses
and with different strategies based on rice phenology and diseases epidemiology. Leaf brown
spot generally preceded leaf blast. At maturity, disease severity on flag leaf seldom exceeded
10-15%. Panicle blast incidence reached 100% between grain set and milk ripeness growth
stages, but severity hardly exceeded 5%. Fungicides efficacy against Cochliobolus
miyabeanus (S. Ito & Kurib.) Drechsler ex Dastur on leaves varied considerably among
products, years, and application strategies and it was comprised between 6 and 67%. The best
results were obtained with two treatments of azoxystrobin or a tank-mix of fenbuconazole and
tricyclazole or iprodione and tricyclazole applied between booting and flowering growth
stages. The same fungicides gave good protection against panicle blast. The two-treatment
phenological strategy was not always better than one-treatment phenological strategy
Principles and practices for environmental auditing program in industrial plants. An Italian case-study.
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