Michael J. Grodowitz

TECHNOLOGY TRANSFER FOR ZEBRA MUSSEL VIA A COMPUTER- BASED INFORMATION SYSTEM (2008)

Michael J. Grodowitz, Lavon Jeffers, Sherry Graham, Mary Nelson

Since the first discovery of zebra mussel (Dreissena polymorpha) in the United States in 1988 (Mackie et al., 1989, Griffiths et al., 1991), a tremendous amount of information has been generated on...

Status of Biological Control of Waterlettuce in Louisiana and Texas Using Insects. (1998)

Grodowitz, Michael J., Johnson, Williams, Nelson, Lois D.

A series of surveys were conducted in southeastern Louisiana during the spring and summer of 1990 to characterize the assemblage of herbivorous insects impacting waterlettuce. These surveys were...

New Pond Facility for Aquatic Plant Biocontrol Research. Aquatic Plant Control Research Program. Volume A-95-2, (1998)

Grodowitz, Michael J., Snoddy, Edward L.

The U.S. Army Engineer Waterways Experiment Station (WES) and the Tennessee Valley Authority (TVA) entered into a cooperative agreement in 1990 to research, demonstrate, and use a variety of...

Management of Hydrilla with Insect Biological Control Agents. Volume A-96-1, (1998)

Grodowitz, Michael J., Center, Ted D., Cofrancesco, Alfred F., Buckingham, Gary R.

Since the introduction of hydrilla (Hydrilla verticil/ata (L. fil.) Royle) to the United States, in Florida in the 1950s, its spread has been rapid. By 1961 it was considered a serious nuisance plant...

Status of Hydrellia spp. (Diptera: Ephydridae) Release Sites in Texas as of December 1998. (1998)

Cofrancesco, Alfred F., Grodowitz, Michael J., Freedman, Jan E.

Beginning in 1991 and continuing through the present, two species of introduced Hydrellia (i.e., H. balciunasi and H. pakistanae) were released and their populations monitored at several sites in...

Potential Use of Insect Biocontrol Agents for Reducing the Competitive Ability of Hydrilla verticillata. (1998)

Grodowitz, Michael J., Doyle, Robert, Smart, R. M.

Three attributes of hydrilla explain the dominance in many reservoir ecosystems: (1) a very effective means of dispersal, (2) rapid growth rate, and (3) the formation of a dense, continuous canopy at...

Status of Waterhyacinth/Hydrilla Infestations and Associated Biological Control Agents in Lower Rio Grande Valley Cooperating Irrigation Districts (1998)

Grodowitz, Michael J., Freedman, Jan E., Jones, Harvey, Jeffers, Lavon, Lopez, Carlos F.

During September 1999, surveys to quantify plant infestations and insect biological control agents of both Eichhornia crassipes and Hydrilla verticillata were initiated on the Rio Grande from just...

Developing Methodologies to Assess the Influence of Nutritional and Physical Characteristics of Hydrilla verticillata on Its Biological Control Agents (1998)

Grodowitz, Michael J., McFarland, Dwilette G.

This technical note describes experimentation used to develop methods of culturing Hydrilla verticillata (L. f.) Royle (hydrilla) to obtain plants with consistent but wide-ranging nutritional and...

Management of Eurasian Watermilfoil in Houghton Lake, Michigan: Workshop Summary (1998)

Getsinger, Kurt D., Poovey, Angela G., James, William F., Stewart, R. Michael, Grodowitz, Michael J.

Houghton Lake is the largest inland water body in Michigan, and as such, is a major ecological and recreational resource for the region. Results of a survey conducted in October 1999 indicated that...

Possible Impact of Lake Seminole Hydrilla by the Introduced Leaf-Mining Fly Hydrellia pakistanae (1998)

Grodowitz, Michael J., Cofrancesco, Alfred F., Stewart, Robert M., Madsen, John, Morgan, Don

Hydrellia pakistanae, a biological control agent of hydrilla, was first introduced into Lake Seminole in 1990. Impact by this species remained low until 1998 when large numbers of individuals and...

A Survey of the Invasive Aquatic and Riparian Plants of the Low Rio Grande (1998)

Owens, Chetta S., Grodowitz, Michael J., Nibling, Fred

Hydrilla (Hydrilla verticillata) has exhibited extensive range expansion along the Rio Grande since its first discovery in early 1990 and is now found in areas far removed from the original...

A Survey of the Invasive Aquatic and Riparian Plants of the Lower Rio Grande (1998)

Owens, Chetta S., Grodowitz, Michael J., Nibling, Fred

Hydrilla (Hydrillia verticillata) has been exhibited extensive range expansion along the Rio Grande since its first discovery in early 1990 and is now found in areas far removed from the original...

A Survey of the Invasive Aquatic and Riparian Plants of the Lower Rio Grande, 2004 (1998)

Owens, Chetta S., Grodowitz, Michael J., Nibling, Fred

Hydrilla has exhibited extensive range expansion along the Rio Grande since it was first discovered in early 1990 and is now found in areas far removed from the original infestation in Brownsville,...

Aquatic Plant Control Research Program. Vol. A-98-1. (1998)

Grodowitz, Michael J., Madsen, John D., Whitaker, Sherry G., Jeffers, Lavon, Stewart, Robert M.

The capability of aquatic plant managers to successfully control aquatic plant infestations is highly dependent on their ability to access pertinent and up-to-date information on scores of topics...