CHEMICAL CONTROL OF PENICILLIUM SP. ON TULIP BULBS USED FOR FORCING

Under certain conditions the tulip bulbs used for forcing may be severely damaged by mechanical harvest and handling during storage.
This may cause a high level attack of Penicillium resulting in bulb rot.

During the 2 year trials two compounds were compared to control Penicillium: iprodion at 0.15 and 0.3% concn. and tributyltinoxide at 0.02 and 0.05 concn. 5°C tulip bulbs were treated by dipping 30 min. prior to planting.

Significant differences were observed between 2 concns. used for both compounds tested.
Higher concentrations showed better control without any negative effect on tulip rooting and flowering.

Treated bulbs gave satisfactory flower yield compared to untreated.

IV International Symposium on Flower Bulbs

L. Ondrušková

https://doi.org/10.17660/ActaHortic.1986.177.72