Research Article : Optimal Spray Time, Interval and Number of Preventive Fungicides for the Control of Fruit Rots of Green and Gold Kiwifruit Cultivars

Research in Plant Disease

Jae-Seoun Hur¹  Gyoung Hee Kim¹  Young Jin Koh¹  Jae Sung Jung¹  Young Sun Lee¹ 

[1] Sunchon National University, Suncheon 540-950, Korea;

关键词: Benomyl;    Carbendazim+diethofencarb;    Fruit rot;    Kiwifruit;   

DOI  :  http://dx.doi.org/10.5423/RPD.2013.19.1.001

来源: DOAJ

【 摘 要 】

Optimal spray time, interval and number of preventive fungicides against fruit rots of kiwifruit were investigated at the orchard which both green kiwifruit cultivar ‘Hayward’ and gold kiwifruit cultivar ‘Hort16A’ are cultivating side by side during 2009 and 2010 growing seasons in Jeju island, Korea. The highest control efficiency was obtained from benomyl WP and followed by thiophanate-methyl WP and carbendazim+diethofencarb WP. The control efficacies of the fungicides were much higher when applied onto the kiwifruit canopy after the flowering time than before the flowering time but thereafter their control efficiencies were decreased drastically according to delays of spray timing. With increasing spray numbers of the fungicides, the control efficacy increased. However, optimal spray time, interval and number of the preventive fungicides for the effective control of fruit rots of kiwifruit were determined as 4 time-spray schedule with 2-week-interval just after the flowering time on both ‘Hayward’ and ‘Hort16A’ cultivars.

【 授权许可】

Unknown