Corn-smut is a disease caused by the fungus, Ustilago maydis. In this disease, the fungal spores enter through the corn silks (Note: each silk represents a single kernel created when the corn silk is pollinated). Once pollination is completed and the silks appear darkened brown; the silks do not distinguish between a pollen grain and a fungal spore–it simply appears as if pollination has taken place. At this point, the infection has already begun. Continue reading
Livin’ Easy, Aug 10, 2013
Most rose varieties have some susceptibility to leaf damage from fungal pathogens; however, the damage does not necessarily kill the rose.
The Livin’ Easy old garden rose produces blooms most of the year in my gardens (except during the time period of frequent temperature drops below 32—usually from late November until early or mid-February). Continue reading
What are Plant Diseases?
When we think about disease in humans and animals, we think about the immune system–is it strong enough to be effective and keep us in good health and safe from the harmful effects of whatever microbe is challenging our immune system. Continue reading