After experiencing issues with Xanthamonas in 2017 that affected the begonia supply in the North American market, Dümmen Orange has deeply invested in new disease-reducing production methods. Recent efforts have focused on defining and implementing improvements to ensure a reliable, quality supply of begonia cuttings for the spring of 2019.
Biological control has moved into the mainstream for greenhouse growers. And the timing couldn’t be better, as consumer demands for more sustainable production methods for the plants they buy are moving back upstream.
In a December 16 letter to its customers, Dümmen Orange said it had encountered an issue in its El Salvador-based Las Mercedes production facility, where bacterial leaf spot had been confirmed in begonia production.
Certis USA recently introduced Carb-O-Nator, a new broad-spectrum foliar fungicide that works on contact to control powdery mildew, Alternaria, Anthracnose, Botrytis, Septoria leaf spot, and other diseases.
Halfway through a five-year, $4.6 million grant to combat rose rosette disease in the U.S., a national research team is encouraged by the amount of information learned, but admits having a way to go before finding how to overcome the deadly problem.