Use of Agro-Chemicals in the Management of Gerbera Leaf Spot Caused by Carbendazim Resistant Alternaria Alternata
Meenakshi Sutar, S.S. Kamble
Abstract
Meenakshi Sutar, S.S. Kamble
Abstract
There wasvariation in minimum inhibitory concentration (MIC) of carbendazim among Alternaria alternata (Fries) Keissler isolates on the agar plates as well as on Gerbera leaves. MIC on agar plates ranged from 10–15% while on gerbera leaves from 5–8%. Isolate Aa-4 from Pune was highly resistant. Use of carbendazim with agro-chemicals such as Kavach, Mancozeb, Redomil, Mera-71 completely inhibited growth of the pathogen, both in vitro and in vivo, suggesting reduction in carbendazim resistance.
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There wasvariation in minimum inhibitory concentration (MIC) of carbendazim among Alternaria alternata (Fries) Keissler isolates on the agar plates as well as on Gerbera leaves. MIC on agar plates ranged from 10–15% while on gerbera leaves from 5–8%. Isolate Aa-4 from Pune was highly resistant. Use of carbendazim with agro-chemicals such as Kavach, Mancozeb, Redomil, Mera-71 completely inhibited growth of the pathogen, both in vitro and in vivo, suggesting reduction in carbendazim resistance.
Key concepts: Carbendazim, Alternaria alternata, Gerbera, Mancozeb, Fungicide, Biology, Horticulture, Leaf spot