Dr Bruce Martin Fungicide Program For Bermuda

BASF Turf Talk's YouTube Channel is designed to create a virtual community for the team at BASF Professional Turf & Ornamentals and turf professionals everyw. The symptoms of brown patch vary according to mowing height. In landscape situations, where mowing height is greater than 1 inch, brown patch appears as roughly circular patches that are brown, tan, or yellow in color and range from 6 inches to several feet in diameter.

• Dr Bruce Martin Fungicide Program For Bermuda Triangle

Pinpoint® Fungicide is formulated with a new fungicide active ingredient designed for outstanding dollar spot control. Pinpoint provides superintendents and other turf management professionals with an excellent fungicide program rotation partner to help manage and mitigate dollar spot resistance from SDHI, DMI, benzimidazole and dicarboximide fungicides. Pinpoint is labeled for use on golf courses and sod farms, as well as residential and commercial lawns.

Used in rotation, Traction™ and Pinpoint® deliver proven dollar spot control,
plus three modes of action for disease resistant management.

Learn more about Traction™ Fungicide.
Plus, Win the War with this Dollar Spot Rotation.

at-a-glance info

EPA REG. NO.: 59639-199
ACTIVE INGR.: mandestrobin (43.4%)
FORMULATION: liquid (4SC)
CHEM. FAMILY: strobilurin
FRAC NO.: 11
SIGNAL WORD:caution
RESTRICTED:no
PACKAGE SIZE: 4 x 60 fl oz bottle

KEY USES

• Athletic fields
• Golf courses
• Lawns (residential, institutional, public, commercial and industrial)
• Parks and recreational areas
• Sod farms

(See product label for complete list)

Dr Bruce Martin Fungicide Program For Bermuda Triangle

KEY DISEASES CONTROLLED

• Brown patch (suppression only)
• Dollar spot
• Fairy ring
• Rust
• Take-all patch

(See product label for complete list)

COMPETITIVE ADVANTAGES

• New fungicide active ingredient available exclusively from Nufarm
• Unique and selective activity against dollar spot
• Excellent rotation partner for managing resistance to SDHI, DMI, benzimidazole and dicarboximide fungicides
• Excellent turf tolerance
• Optimized for early- through late-season dollar spot control

USE SUMMARY

Pinpoint® Fungicide can be applied pre- or post-infection, but is most effective when applied prior to infection. Optimal disease control is achieved when Pinpoint is applied in a regularly scheduled spray program, used in combination and/or rotation with other effective fungicides that have different modes of action and are effective against dollar spot

DISEASE: Dollar spot
RATES: 0.17-0.31 fl oz/1000 sq ft
7.4-13.5 fl oz/A
APPLICATION INTERVAL: 14-21 days

DISEASES: Brown patch, fairy ring, rust, take-all patch
RATES: 0.31 fl oz/1000 sq ft
13.5 fl oz/A
APPLICATION INTERVAL: 14 days

For dollar spot, use preventively and begin applications when conditions favor disease development. For all other diseases, begin applications when conditions favor disease development or when the disease first appears.

See product label for complete directions for use.

dollar spot control on creeping bentgrass

8 DA 4th application – August 15, 2013 (Columbus, OH); 14-day spray interval
2013JFAUS051, Joe Rimelspach, The Ohio State University

PINPOINT TRIAL ON CREEPING BENTGRASS

Creeping Bentgrass Green ‘Crenshaw’. Dr. Bruce Martin, Clemson University (2012)

Cream leaf what? That's the exact response I've heard from superintendents over the past several weeks when I tell them their ultradwarf bermuda putting greens have a disease known as cream leaf blight. To answer your first question, cream leaf blight is not a new pathogen to turfgrass. It has been documented on creeping bentgrass and tall fescue. As more ultradwarf bermudagrass replaces creeping bentgrass for putting surfaces here in North Carolina, we will likely observe more new diseases. This disease has been diagnosed on both 'Champion' and 'Mini Verde' and we are in the process of complete confirmation of the causal fungus via DNA analysis.

Typical white patch symptom observed on ultradwarfs in December/January in North Carolina

Cream leaf blight is caused by the same pathogen that causes pink patch, Limonomyces roseipellis. Pink patch is often found in close association with red thread, which is caused by the fungus Laetisaria fuciformis. Pink patch and cream leaf blight vary slightly in their morphological features, which we are able to detect under the microscope. For those of you who are plant pathology geeks, pink patch produces clamp connections and cream leaf blight does not. Otherwise, from what we've observed, the two appear identical in the field and we will most likely refer to it as cream leaf blight since that seems to match the stand symptoms the best. One unique characteristic is the mycelium will twist into 'rope' like structures, as seen below.

Mycelium twisting into 'ropes' for both cream leaf blight and pink patch (25x)

Close up of cream leaf blight hyphae twisting into a 'rope' (200x)

While we don't know much about cream leaf blight on bermudagrass yet, we have only observed cosmetic damage and nothing that leads to turf loss or significant reduction in playability. We have been recommending fungicide applications of products like 26GT, ProStar, Heritage, Insignia, or Disarm since they have been proven performers with pink patch/red thread complexes.
If you are observing this type of symptom at your course and have questions, feel free to contact us!