Peach leaf curl is a common disease of peaches in Iowa. The disease is easy to recognize. When infected leaves emerge from buds they appear thickened, puckered, and pinkish-red in color.
Commercial fertilizers and manures are applied to supplement a soil's natural fertility. The rate of material to apply varies according to crop grown, soil type, and other factors.
Welcome spring! Trees are awakening, bulbs are sprouting, and lawns are beginning to green up. Warmer weather stimulates the growth and development of the plants and flowers we are longing to see. Well guess what!
The following plants will attract and encourage butterflies in Iowa. Most provide nectar for adults; others (marked with a C ) are a necessary food source for specific caterpillars. Refer to Food Preferences of Common Iowa Butterflies.
Welcome! Barbara Ambruzs is a new member of the Plant Disease Clinic team. Barbara received her Master's degree in plant pathology from Colorado State University in 1999.
Listed below are meetings that may be of interest to HHPN readers. These programs offer the Commercial Pesticide Applicator the opportunity to fulfill their continuing instruction requirement for the year 2000 in the following categories.
An important consideration when selecting trees, shrubs, herbaceous perennials, and other plants for the home landscape is cold hardiness. In most cases, plants that are adapted to Iowa's cold winter temperatures don't require winter protection.
Listed below are meetings that may be of interest to HHPN readers. These programs offer the Commercial Pesticide Applicator the opportunity to fulfill their continuing instruction requirement for the year 2000.
Gourds are a diverse group of plants. The fruit of the small ornamental gourds are often colorful and distinctly shaped. The fruit may be white, cream, yellow, orange, green, or blue. Some are bicolored. Their surfaces may be smooth or warty.
Your plant is showing signs of stress. The leaves may be curling, distorted, or have holes in them. What should you do? In a state of panic, you look for a chemical that will solve the problem.
Spring-flowering bulbs, such as tulips and daffodils, are familiar to all gardeners. Though not widely planted, the attractive flowers and unique life cycle of the autumn crocus or colchicum make it a welcome addition to the garden.
Lime and gypsum are valuable soil amendments in certain areas of the United States. Many gardeners in the eastern U.S. apply lime to their soils to improve plant performance.
Oak wilt, Verticillium wilt, and Dutch elm disease are examples of vascular wilt diseases. The fungi that cause these diseases impair the treeÕs ability to conduct normal water flow, causing the classic wilting symptoms.
White mold, caused by the fungus Sclerotinia sclerotiorum, is a serious disease problem on a number of different plant species. In Iowa, the best known host is soybean. However, many ornamental plants are also susceptible to white mold.
Hummingbirds can be a charming addition to any garden. Seeing one of these beautiful birds
effortlessly float above a flower in search of nectar explains why many gardeners go out of their way to
attract them to their yard.
