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Indian Phytopathology

, Volume 71, Issue 4, pp 621–625 | Cite as

New generation fungicides for the management of buckeye rot of tomato

  • B. P. Shridhar
  • Monica SharmaEmail author
  • S. K. Gupta
  • Satish K. Sharma
Short Communication
  • 3 Downloads

Abstract

Efficacy of nine systemic and non-systemic fungicides was evaluated under in vitro and in vivo conditions against Phytophthora nicotianae causing buckeye rot disease of tomato. Under in vitro conditions, famaxadone + cymoxanil, fenamidone + mancozeb, cymoxanil + mancozeb, metalaxyl-M + mancozeb and metiram + pyraclostrobin were found most effective with complete inhibition in mycelial growth of the pathogen at 100, 250 and 500 ppm. Fungicide azoxystrobin was least effective with only 27.77% of inhibition in mycelial growth of test pathogen. The minimum inhibitory concentration was 100 ppm for famaxadone + cymoxanil, fenamidone + mancozeb, cymoxanil + mancozeb, metalaxyl + mancozeb and metiram + pyraclostrobin and 500 ppm for propineb and mancozeb. Under in vivo conditions, foliar spray of fungicide fenamidone + mancozeb was found most effective with least buckeye rot disease incidence (16.15%) and also significantly increased the fruit yield. Famoxadone + cymoxanil, metalaxyl-M + mancozeb and metiram + pyraclostrobin were next best in order with 19.45, 19.71 and 19.76% disease incidence, respectively while mancozeb was found least effective which resulted in 32.54% disease incidence.

Keywords

Disease management Fenamidone Pyraclostrobin Famoxadone Phytophthora nicotianae 

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Copyright information

© Indian Phytopathological Society 2018

Authors and Affiliations

  • B. P. Shridhar
    • 1
  • Monica Sharma
    • 1
    Email author
  • S. K. Gupta
    • 1
  • Satish K. Sharma
    • 1
  1. 1.Department of Plant PathologyDr. YSP University of Horticulture and ForestrySolanIndia

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