Whats New

What’s New

--Updates, Alerts, and News from the PDIO--

December 2023

Two New Fact Sheets Published Online

Dollar spot of turf grass Gray snow mold of turf grass

October 2023

Boxwood Blight is Back

Recently, our office has received an increased number of inquiries concerning boxwood blight. Periods of warm and wet weather conditions are favorable for development of this disease. Several resources are available on our Boxwood Blight Information and News page. If boxwood blight is suspected, samples may be sent to our lab for disease diagnosis. Instructions on collecting samples can be found in our Sample Submission Guidelines.

Dark leaf spots Severe defoliation

September 2023

CAES Scientists Release Updated Bulletin on Biology and Management of Beech Leaf Disease

The Connecticut Agricultural Experiment Station (CAES) has released a new fact sheet providing an update and overview of current research on the biology and management of beech leaf disease (BLD), conducted by scientists at CAES and at research institutions throughout the affected region. Beech Leaf Disease: Management Options

August 2023

Wet Summer Weather Promotes Fungal Leaf spots on Woody Ornamentals

This summer, we have been experiencing frequent thunderstorms with heavy precipitation. Wet warm summer weather combined with high humidity creates a favorable environment for fungal diseases in landscapes and gardens. Our office received numerous inquiries and reports of fungal leaf spots. For more information, please check the link Leaf Spot Diseases of Ornamental Trees and Shrubs. For disease diagnosis, please send us samples and images by following Sample Submission Guidelines.

Septoria leaf spot of lilac with browning and drying of leaves Yellowing of elm leaves infected with black spot

Septoria leaf spot of lilac Black spot of Elm

June 2023

Two New Fact Sheets Published Online

Pine wilt Anthracnose of Strawberry

April 2023

What's Wrong with My Eastern Red Cedar?

Wet spring weather can induce orange gelatinous horn-like structures to exude from galls on eastern red cedar and other junipers infected with cedar-apple rust. For more information, please refer to our fact sheet Cedar-Apple Rust.

Watch for Beech Leaf Disease this Spring and Summer

beech leaf disease with dark green bands on leaves

Newly expanding beech leaves are already beginning to show symptoms of Beech leaf disease. More information can be found in the fact sheet: Beech Leaf Disease - Updates 2021.

March 2023

New Fact Sheets of Boxwood Blight BMPS