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|  | | Featured Research
| | Cover Story
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|  | | Featured Research
| | Cover Story
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 Silicon Suppresses Leaf Spotting on Bermudagrass
Silicon (Si) is considered a plant-nutrient anomaly because it is presumably not essential for plant growth and development. Soluble silicon, however, has enhanced the growth and development of several plant species including rice, sugar cane, most other cereals and several dicotyledons such as cucumber and water melon. The author present results of a study to determine if Si could enhance host plant resistance to Biploaris cynodontis, the cause of leaf spotting and melting out of bermudagrass in Florida. |
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| Season, Zone Dictate Weed Control in Seeded Tall Fescue and Bluegrass
| | Weed control during establishment of tall fescue and Kentucky bluegrass from seed is difficult for many reasons. First, many herbicides normally considered safe on fully established stands of both grasses can be detrimental to newly developing seedlings. Herbicides containing broadleaf herbicides, such as 2,4-D and dicamba, can injure developing seedlings so severely that if applied to seedlings under the wrong conditions, a delayed turfgrass development can occur. |
| | Predicting Nematode Populations Can Pre-empt Disease
| | | Nematodes are one of the few turf pathogens that can be managed using an integrated pest management strategy. Because plant-parasitic nematodes are ubiquitous in turfgrass soils, it would be impractical and impossible to eliminate them. Thus, turf managers in the Northeast must live with a certain number of plant-parasitic nematodes in any turfgrass stand. When the population of nematodes reaches a high level, it may cross a disease threshold, and symptoms might be observed. When this occurs, treatment is warranted to knock the nematode numbers below the disease threshold. |
| | Four Tips to Interseed Bentgrass into Poa annua
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Establishing creeping bentgrass into an existing stand of annual bluegrass (Poa annua) while the turf is in play has been an elusive goal of many golf course superintendents. Years ago I learned the hard way just how challenging it can be. |
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| | Glysophate Resistance Prompts Integrated Management
| | | Repeated use of the same herbicide is the main reason for weed resistance to herbicides worldwide. The widespread use of glyphosate-tolerant crops and repeated use of glyphosate herbicide is slowly resulting in glyphosate resistance and shifts in weed species. |
| | Computer Simulation Tracks Water Flow in Greens, Part 2
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In the December issue, we reviewed the need for a more accurate method for evaluating water flow in the three common types of greens: USGA (United States Golf Association), California and push-up. This month, we look at the results from the simulations. |
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