Spring weather brings diseases and pests to rose bushes
Frank BrinesARS Master RosarianThis year continued the signs of climate change with chaotic weather patterns nationwide. Rose growth and development are dependent on weather, and flower production is particularly affected by inconsistent temperatures, sun and water. All of this has made it more difficult for me to predict what to do and when to do it!Typically, the first flush of blooms is expected after eight to 10 weeks, usually on the longer side. My experience this year was dependent on location.The longer time frame for rain and cool nights set up the environment for some rust, mildew and Botritis fungi. A few applications of fungicide spray would help to reduce or delay the outbreak.But now that we've seen the return of abundant sunshine, we're seeing larger bloom