Nematodes
Nematodes are a growing but often undetected pest problem in turfgrass throughout the United States, especially on low-mowed greens or other areas under stress. Nematodes often enhance root diseases confounding diagnosis and control. Nematode assays can help determine the type of nematode present and whether they are a concern or courses where nematodes are not a major concern but wanting to be proactive with nematode management, apply Resilia TM root health solution at 4 fl. oz. per 1,000 sq. ft. A total of four applications can be made per year. If current symptoms are validated with high nematode populations, curative applications of Indemnify should be made immediately. Consult your local area sales manager for specific timing and re-application interval. Re-applications will depend on the level of nematode populations/damage. For resistance management, consider including other MOAs for nematode control. For courses with a documented history of nematode damage, consider the following:
Application
Product and Use rate per 1,000 sq. ft.
1 st app. – Mar/Apr (60-65°F)
Indemnify ® 0.39 fl. oz.
Spring
2 nd app. – 14-28 days later
Indemnify 0.39 fl. oz.
1 st app. –Oct/Nov (60-65°F)
Indemnify 0.39 fl. oz.
Fall
2 nd app. – 14-28 days later
Indemnify 0.39 fl. oz.
1 Consult your local area sales manager for specific timing and re-application interval. 2 Re-applications will depend on the level of nematode populations/damage
PRO TIP : If root-knot nematodes are suspected, request mist extraction, whereas sting nematodes are more accurately determined using traditional soil extraction techniques
Spring Dead Spot
In spite of the name, spring dead spot is a fall/winter disease, so applications begin in fall when average soil temperatures at 2” depth fall below 75ºF for five consecutive days when taken at 11:00 am. These applications should be watered-in with 0.125”. The Envu program below has a satisfaction guarantee and if your expectations are not met, please contact your Envu Distributor or Envu Area Sales Manager.
Product and Use Rate per 1,000 sq. ft.
Application
Good
Better
Best
Ideal for fairways
Ideal for fairways or greens
Ideal for greens
Tarvecta™ or Fame ® 0.36 fl. oz. 1 + Mirage Stressgard 1 fl. oz.
Rayora ® 1.4 fl. oz. or Mirage ® Stressgard ® 2 fl. oz.
1 st app. (Fall) <72°F soil temp
Resilia™ 4 fl. oz.
Tarvecta or Fame 0.36 fl. oz. 1 + Mirage Stressgard 1 fl. oz.
Tarvecta or Fame 0.36 fl. oz. 1 + Mirage Stressgard 1 fl. oz.
Rayora 1.4 fl. oz. or Mirage Stressgard 2 fl. oz.
2 nd app. (28 days later)
1 Fame can be substituted with Castlon TM , as both of these fungicides contain the active ingredient fluoxastrobin
PRO TIP : Applying broad-spectrum products like Resilia TM to putting greens offers comprehensive protection in the fall, targeting not only spring dead spot but also take-all root rot, Pythium root rot, and pathogenic nematodes
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June 2025
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