consort to the American Society for Horticultural Science , the woody ornamental nursery diligence is an important agricultural sector in the United States that generates more than $ 5.5 billion in annual wholesale values . " Among woodsy ornamentals , hydrangeas are valued for their large , colorful inflorescences and are widely used in commercial and residential plantings , as well as in playing field glasshouse and glasshouse . Plant wellness is an important condition in maximize profitableness . However , the wellness , appearing , and ornamental values of these crops are often negatively affect by diseases , deliver them unmarketable . Powdery mould in bigleaf hydrangea ( Hydrangea macrophylla ) is a destructive foliar disease . "
A new cogitation has identify chemical control method for finagle powdery mould , a common fungal disease touch on bigleaf hydrangeas ( Hydrangea macrophylla ) . The findings extend growers pragmatic answer to protect this ornamental flora and maintain its vibrant appearance in landscapes and nurseries .
Powdery mildew , triggered by fungous pathogen , is a persistent challenge for bigleaf hydrangea growers . The disease manifests as snowy , powdery maculation on leaves , quash works vigor and aesthetic value . This discipline evaluated various chemical treatments to determine the most effective options for suppressing the disease while minimise environmental wallop .

Researchers try multiple fungicides and program schedules , expose several product and strategies that significantly reduced powdery mildew incidence and severity . These treatments not only improved flora wellness but also maintained the hydrangea ’s ornamental quality , guarantee its appeal for gardener and commercial-grade markets , as statesd by the American Society for Horticultural Science .
The survey underscores the grandness of integrated disease management , where chemical control complements other practices like proper spatial arrangement , gentle wind circulation , and resistant cultivars . " By assume these finding , cultivator can better protect their crops from powdery mold and enhance the sustainability of hydrangea output . "
This research was carry by Dr. Baysal - Gurel and her squad ( Tennessee State University , McMinnville , TN ) to determine the efficaciousness of the antimycotic agent on powdery mold of bigleaf hydrangea at different applications programme rates and interval . flora height and width gain , defoliation percentage , defoliation progress , disease severity , and disease progress over the duration of the subject were evaluated across several different experiments in both shade house and nursery conditions between 2022 - 2023 .

Dr. Baysal - Gurel is Associate Dean of Research at the College of Agriculture and Associate Professor at Tennessee State University , Otis L. Floyd Nursery Research Center .
The full news report can be found on the ASHS HortScience electronic journal website at : https://doi.org/10.21273 / HORTSCI17500 - 23
Source : American Society for Horticultural Science