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Bull. Spec. CORESTA Congress, Jerez de la Frontera, 1992, p. 154, P14, ISSN.0525-6240

About the possible replacement of the traditional fungicides on tobacco blue-mold control

AVIGLIANO M.; PORRONE F.; BRANCATO V.
Istituto Sperimentale per il Tabacco, Scafati, Italy
The experiments, made into two different environments and with the same treatment ways, have included 11 theses in 3 replications on Burley tobacco, sensitive to blue-mold and grown according to the normal agronomical techniques. The treatments have been carried out following a settled calendar so that they varied from 0 to 6 according to the theses. The fungicides were formed by systemic (Metalaxyl, Oxadixyl, Fosethyl), by cytotropic (Cimoxanyl) and contact products (Chlortalonil, Mancozeb), used individually or mixed between them or with other"partners". At the end of 3 observations in both the experiments we have noticed that some of the used a.i. as Fosethyl + Cimoxanyl + Mancozeb, Chlortalonil, Metalaxyl + Chlortalonil, Metalaxyl + Mancozeb, Oxadixyl + Mancozeb + Cymoxanil able to control accurately the disease with low attack degrees which are referable to an infected leaf surface variable from some spots for a plant to some sports for a leaf. The control plants, instead, have showed an infected leaf surface variable from 25 to 50% of it. These results which, obviously, have to be confirmed in our next trials, make us hope for the possibility of having at our disposal well done products for tobacco blue-mold control in alternative to the fungicides we use since many years ago.