If you’ve experience the number of rains that we have in New Brunswick, you are probably seeing plenty of crabgrass. Weather conditions have been ideal for crabgrass in many areas of the state.
You may be asking what can be done to clean-up this weed problem [Read more…] about Cleaning-up Severe Crabgrass Infestations
Uh-oh! We now have green kyllinga at Hort Farm No. 2 in North Brunswick. Joe Clark found it in a field that was sprayed with glyphosate. Most everything died but the kyllinga! Carrie Mansue has made some collections of kyllinga and will be doing some herbicide tests in the greenhouse this winter to determine which materials have the best activity on the this very difficult to control weed.
Keep a lookout for this weed, if left alone it will spread by rhizomes. Carrie has visited lawns that were essentially overrun by kyllinga. Once kyllinga achieves that level of dominance, control is nearly impossible without complete renovation. See previous post on the topic.
We are seeing and hearing about increasing problems with green and false kyllinga; both are very troublesome invasive weed species that have moved northward into New Jersey. Green kyllinga and false green kyllinga are very similar in appearance, and both are referred to as green kyllinga. Green kyllinga is very difficult to control once large mats form.
These weeds thrive under mowing and are prolific in areas that are poorly drained or frequently wet. If you do not have [Read more…] about Battling Green and False Kyllinga in New Jersey Turfs
I have seen as much disease damage on turf this summer as any year since I began living and working in New Jersey (1991).
The hot humid weather has been ideal for summer patch and brown patch diseases.
I have observed more damage from summer patch disease on hard fescue turf than Kentucky bluegrass this year. This is likely due to the fact that more people are growing varieties of Kentucky bluegrass with better tolerance to this disease than was the case 20 or more years ago.
The Rutgers turfgrass breeding program is working on improving the tolerance of hard fescue to summer patch disease.
There are some cultural techniques that [Read more…] about Tough Year for Summer Patch Disease
We receive requests for information on “organic” alternatives to glyphosate (e.g., Roundup), especially for “trim” sprays on paved areas, sidewalks, skin surfaces on ball fields, etc.
The research on organic non-selective herbicides that are being marketed as replacements to glyphosate (for example, Roundup) is growing but it is much more limited that what you can find on more conventional herbicides; however, we have been evaluating some products. Our results indicate that [Read more…] about Are there Organic Alternatives to Glyphosate?
We receive requests for information on “organic” alternatives to glyphosate (e.g., Roundup), especially for “trim” sprays on paved areas, sidewalks, skin surfaces on ball fields, etc.
The research on organic non-selective herbicides that are being marketed as replacements to glyphosate (for example, Roundup) is growing but it is much more limited that what you can find on more conventional herbicides; however, we have been evaluating some products. Our results indicate that [Read more…] about Are there Organic Alternatives to Glyphosate?
Back on May 24, I posted about my observation of crabgrass emerging in areas that had very thin turf cover and very high levels of crabgrass seed in the soil. Crabgrass is now emerging from areas with healthier turf and good density (and has not received a preemergence herbicide application). Recent and forecast rains are likely to [Read more…] about Crabgrass Emerging
Back on May 24, I posted about my observation of crabgrass emerging in areas that had very thin turf cover and very high levels of crabgrass seed in the soil. Crabgrass is now emerging from areas with healthier turf and good density (and has not received a preemergence herbicide application). Recent and forecast rains are likely to [Read more…] about Crabgrass Emerging
Unfortunately, we had annual bluegrass invasion into the 2011 Kentucky Bluegrass Trial, sponsored by the National Turfgrass Evaluation Program (NTEP). As a result, we are trying a relatively new herbicide, [Read more…] about Annual Bluegrass Control in Kentucky Bluegrass
Anthracnose disease was active as early as April 16 this year and has intensified in recent weeks on our low N fertilization plots.
One of our experiments has the objective of determining whether anthracnose can be managed with curative sprays if [Read more…] about Anthracnose Active on Annual Bluegrass