Transition Zone
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. 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 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. 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.
Mini Ring Mini ring is active in the heat of summer, so applications should begin in mid-summer when the average soil temperature at a 2” depth taken at 11 am reaches 80ºF for three consecutive days. Applications should be watered in with 0.125”. The Envu program below provides guaranteed satisfaction 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
1 st app. (>80°F soil temp)
Densicor ® 0.196 fl. oz.
Densicor 0.196 fl. oz.
Resilia™ 4 fl. oz.
2 nd app. (28 days later)
Mirage ® Stressgard ® 1 fl. oz.
Kalida ® 0.4 fl. oz.
Kalida 0.4 fl. oz.
3 rd app. (28 days later)
Densicor 0.196 fl. oz.
Densicor 0.196 fl. oz.
Resilia 4 fl. oz.
4 th app. (28 days later)
Kalida 0.4 fl. oz.
Kalida 0.4 fl. oz.
PRO TIP : Golf course superintendents should opt for urea-based fertilizers instead of ammonium sulfate when managing mini-ring, as ammonium sulfate has been shown to exacerbate the disease
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