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Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (1): 188-192.doi: 10.11924/j.issn.1000-6850.2012-2196

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Evaluation of Control Affection of Fungicides on Fusarium Wilt of Banana

  

  • Received:2012-06-13 Revised:2012-06-21 Online:2013-01-05 Published:2013-01-05

Abstract: To screen the fungicides for controlling Fusarium wilt of banana, inhibition activities of nine fungicides to the pathogen Fusarium oxysporum f. sp. cubense were tested on PDA (potato dextrose agar) medium and in soil. The results showed that inhibition zone of 500-fold dilution of 50% prochloraz(WP),50% carbendazim(WP) and 50% thiram(WP) have the diameters of 3.14 cm, 1.86 cm and 1.51 cm, respectively, but other fungicides tested showed no inhibition zone on PDA plates. Moreover, their inhibition rates in soil were 85.19% , 75.31% and 54.32% , respectively, significantly higher than that of other fungicides tested. The control efficiencies of the three fungicides as well as hydantoin (TC) were further evaluated in plot experiment, by treatment with 200 mL 1000-fold dilution per plant for 3 times. The results showed that control efficiacies of 50% prochloraz (WP), 50% carbendazim (WP) and 50% thiram (WP) were 64.65%, 48.23% and 45.71%, respectively, markedly higher than that of Hydantoin (TC). These data provided useful information for control of Fusarium wilt of banana.