ISHS Acta Horticulturae 491: International Symposium Greenhouse Management for Better Yield & Quality in Mild Winter Climates
INVESTIGATIONS ON INTEGRATED CONTROL PRACTICES IN VEGETABLE GLASSHOUSES IN IZMIR |
| Authors: | Z. Yoldas, N. Madanlar, A. Gül, E. Onogur |
| Keywords: | Encarsia formosa, Phytoseiulus persimilis, Aphidius colemani, sodium bicarbonate, cucumber, tomato |
| Abstract:
In this study, tomato and cucumber were grown in the glasshouses of the Faculty of Agriculture, Ege University for two spring seasons in addition to one fall season between 1996–1997. Encarsia formosa (against whiteflies); Phytoseiulus persimilis (against red spider mites) and Aphidus colemani (against aphids) were used as biocontrol agents against the corresponding pests. Cultural control measures proved to be effective for controlling leaf miners. On the other hand, chemical control was used against Aculops lycopersici. The fungicides which have less side-effects on biocontrol agents of pests were chosen to control the prevailing diseases. No preventive control measures were applied against pathogens. When the disease symptoms were visible, sodium bicarbonate was used as an alternative material against powdery mildew on tomatoes. Compared to our previous studies, in this study, similar results were obtained regarding the success of E. formosa against whiteflies and P. persimilis againts red spider mites. However, for controlling aphids, specific aphicides were used for two seasons and biocontrol agents were used in the third season. Sodium bicarbonate with a surfactant was found to be effective in controlling powdery mildew on tomatoes. | |
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