| Abstrakt: |
Slurries made from mixtures of wettable powder formulations of fungicides in water or the mineral oil Actipron were applied to Didymella lycopersici Kleb. Stem lesions on glasshouse tomatoes. Benomyl/Actipron completely arrested lesion development, but the other treatments, thiram/Actipron, Actripron, and water with captan, captofol, benomyl, benomyl and maneb, an iodophor, maneb, or thiram did not prevent lesion development. Benomyl/Actipron in the ration of 1:1.5 of commercial products (wt/vol) gave the most satisfactory control of D. lycopersici stem lesions while minimizing phytotoxicity. A fungitoxicant was recovered from tomato stems following application of the benomyl/Actipron mixture. With actipron/benomyl the uptake of the fungitoxicant by the plants was greater than with the benomyl/water mixture, which was not as effective: it dried to a hard shell and lack of moisture may have impeded uptake of the fungitoxicant. [ABSTRACT FROM AUTHOR] |
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