March 8, 2006

Termites in Mulch - Another Urban Myth

There has been considerable interest in Formosan termites after an article began circulating on the Internet claiming Formosan termites will be coming to eat your house if you buy low priced wood-chip mulch from garden centers this spring. The theory is that trees blown down in New Orleans by Hurricane Katrina were infested with termites and that those trees willed be chipped into mulch and shipped across the country, spreading Formosan termites.

Growing Impatiens in the Home Garden

Annuals are indispensable additions to the home landscape because of their colorful flowers and long bloom period. Popular annuals for sunny sites include marigolds, petunias, and geraniums. Impatiens are the perfect choice for locations in partial shade.


Impatiens (Impatiens walleriana) are the most popular bedding plant in the United States. They are ideal for containers, hanging baskets, and beds.

Bacterial Wilt Diseases of Geranium

Bacterial blight and Southern bacterial wilt are two common bacterial wilt diseases that cause similar symptoms in geranium and may result in significant losses.

Browning of Conifer Needles

The Plant Disease Clinic has recently received several samples of white pines and other conifers that are turning brown. Many factors may cause browning of conifer needles.