Turfgrass Disease Profiles: Root Knot Nematode This publication describes the root knot nematode life cycle, and how to identify and manage them in turf. Free download at: http://extension.purdue.edu/extmedia/BP/BP-121-W.pdf Turfgrass Disease Profiles: Spring Dead Spot Spring dead spot (SDS) is the most serious disease of bermudagrass. It is a root disease that kills individual plants, thins turf […]
Purslane Biology: Common purslane (Portulaca oleracea L.) is a summer annual broadleaf weed (Fig. 1) that is commonly found in low maintenance turf swards (Fig. 2), turf seeded in summer (Fig. 3), next to sidewalks and driveways, and in mulched beds and gardens (Fig. 4). Purslane is a succulent plant with a prostrate growth habit, […]
Quackgrass Biology: Quackgrass ( Elymus repens) is a cool-season perennial that vigorously spreads by rhizomes. It is a sod-forming grass that can crowd out desirable grasses and even other weeds. Quackgrass has been shown to be allelopathic, which means it releases chemicals that inhibit the growth of other plants. Large, nearly pure patches of […]
Some are suffering through another year of bermudagrass winterkill in Indiana. Much different than last year where winterkill was widespread and there were many different causes (too cold, too wet, too shaded, etc.), the primary cause for winterkill in 2014-2015 in Indiana appears to be confined to immature bermudagrass. Those that were not able to […]
Biology: Orchardgrass (Dactylis glomerata), is a clump-forming, or bunch-type, cool-season grassy weed found throughout the Midwestern United States. It is typically used as a type of grazing or forage grass in pastures but it can be a weed in turf. It’s bunch-type growth pattern, light blue-greenish color, ability to tolerate partial shade, and rapid […]
Dandelion Biology: Dandelion (Taraxacum offinianale), is a broadleaf perennial weed that can be found in lawns, nursery crops, and landscapes throughout the United States. It has the ability to survive many different soil types, environmental conditions, and management practices; thus, it is a commonly found weed in lawns throughout the northern half of […]
Common Mallow Biology: Common mallow (Malva neglecta), also known as cheese mallow, cheese weed, and dwarf mallow, is a winter annual broadleaf weed, though it can also act as a biennial if environmental conditions that favor growth persist. It is generally found in low-maintenance turfgrass lawns, nursery crops, and landscapes. The ability of […]
Pineapple Weed Biology: Pineapple weed (Matricaria matricariodies), behaves as either a summer or winter annual and it is commonly found throughout the United States. It is a weed of both high- and low-maintenance turfgrass lawns, landscapes, and nursery crops. Its ability to tolerate low mowing heights and highly compacted soils allow pineapple weed to […]
Roughstalk Bluegrass Biology: Roughstalk bluegrass, primarily known by its scientific name (Poa trivialis), is a cool-season perennial grass that can be found throughout the Midwestern United States. Though roughstalk bluegrass can be found in landscapes, roadsides, meadows, and waste areas, it is primarily considered a turfgrass weed. It can successfully germinate in multiple environmental […]
Buckhorn Plantain Biology: Buckhorn plantain (Plantago lanceolata) is a perennial broadleaf that can be found in sites that are typically dry and consist of neutral to basic soils. Like the closely-related broadleaf plantain (Plantago major), buckhorn plantain can often be found in compacted soils but does not tolerate injury from constant traffic stress. It […]
Any investment in quality continuing education opportunities benefits employees and employers alike. The 2015 Great Lakes School of Turfgrass Science Online is designed to help meet the continuing education needs of any individual or organization. This 12-week program will have training sessions accessible live online on Wednesday evenings from 6 to 8pm (Central Standard Time) […]
This publication examines how the various components of a pesticide application work (water, pesticide molecules, application equipment). It then describes how adjuvants can enhance pesticide performance and protect against the unwanted consequences of spray drift. The goal is to define what adjuvants do and highlight their value in improving pesticide applications.
Many are asking is how late in the year can I apply a broadleaf herbicide to control dandelions, white clover, ground ivy and other broadleaf weeds. Generally, the best answer is that broadleaf herbicides can be applied in Indiana until mid-November and still provide effective control. This timing is +/- 2 weeks depending upon your […]
The use of ride-on sprayer/spreaders by lawn care operators (LCOs) and the sports turf industry has increased dramatically since they were introduced in the 1980s. Ride-on equipment offers a number of competitive advantages over walk-behind spreaders and the hand-gun/hose-reel type of application. This publication addresses specific procedures for separately calibrating the pesticide sprayer and the […]
This publication addresses specific procedures for separately calibrating the pesticide sprayer and the fertilizer spreader of ride-on equipment. The goal is to ensure proper application to optimize performance.
Rounds 4 Research is an innovative program aimed at generating resources to fund research and help ensure golf’s future. The premise is simple: Golf facilities can support the effort by donating rounds of golf for two or four or “stay and play” packages and other items that will be auctioned off online to generate funds […]
This publication describes the life cycle and identification of yellow nutsedge, and recommends cultural and chemical management options in cool- and warm-season turf for professional turf managers. This publication also addresses other problem sedges. A similar publication is available for homeowners: Turfgrass Management Yellow Nutsedge Control (AY-19-W)
As the green industry continues to have a large impact on Indiana and the nation, Purdue University has assembled an outstanding team of researchers, extension personnel, and educators that are dedicated to solving problems and helping meet the needs of Indiana residents. One segment of the Indiana green industry that continues to provide a significant […]
This publication describes steps that pesticide applicators can take to correctly measure and mix products to improve results, save money, and enhance safety. Specifically, it will explain some common myths about measuring pesticides, distinguish the difference between liquid ounces and dry ounces, and offer solutions to common problems associated with measuring devices for liquid and dry pesticide formulations.
