Southwestern Zone
Pythium Root Rot Organisms causing Pythium root rot on cool-season greens become active earlier than previously thought, when average 2” soil temperatures reach 60ºF for three consecutive days. For warm-season putting greens, initiate applications in late-summer or early fall when soil temperatures drop below 80°F for three consecutive days. These applications should be watered-in with 0.125” of irrigation. 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
Low pressure
Moderate pressure
High pressure
Banol 2 fl. oz. + Signature ® XTRA Stressgard ® 4 oz. or Signature XTRA Stressgard Liquid 4.5 fl. oz.
1 st app. (>60°F soil temp in spring for cool-season greens) or (<80°F soil temp in late summer for warm-season greens)
Banol ® 2 fl. oz.
Resilia ® 4 fl. oz.
Fame ® 0.36 fl. oz. 1 + Serata ® 0.6 oz.
2 nd app. (21 days later)
Serata 0.6 oz.
Serata 0.6 oz.
Fame 0.36 fl. oz. 1 + Segway 0.45 fl. oz.
Fame 0.36 fl. oz. 1 + Segway ® 0.45 fl. oz.
3 rd app. (21 days later)
Banol 2 fl. oz.
4 th app. (21 days later)
Serata 0.6 oz.
Serata 0.6 oz.
5 th app. (28 days later)
Resilia 4 fl. oz.
1 Fame can be substituted with Castlon TM , as both of these fungicides contain the active ingredient fluoxastrobin
PRO TIP : Applications of Signature™ XTRA Stressgard ® Liquid can strengthen a Pythium root rot program by delivering direct fungistatic activity against Pythium species while also boosting the plant’s photosynthetic efficiency.
Large Patch Timing for large patch prevention begins in the fall when average soil temperatures at 2” depth fall to an average of 70-72ºF for five consecutive days when taken at 11:00 am. Additional large patch applications may be needed in the fall and winter depending on your species, location, temperature, and rainfall. Rotate applications to Kalida ® (0.4 fl. oz.) if the annual maximum of Mirage ® Stressgard ® has been reached (6.5 fl. oz. per 1,000 ft 2 per year). 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.
Application
Product and Use Rate per 1,000 sq. ft.
1 st app. (Fall) 70-72°F soil temp
Mirage ® Stressgard ® 1-2 fl. oz.
2 nd app. (Fall) 28 days later
Mirage Stressgard 1-2 fl. oz.
3 rd app. (Spring) 50% turf green-up
Mirage Stressgard 1-2 fl. oz.
Mirage Stressgard 2 fl. oz. + Fame ® 0.18 fl. oz. 1
Curative rescue treatment
1 Fame can be substituted with Castlon TM , as both of these fungicides contain the active ingredient fluoxastrobin
PRO TIP : Incorporating Stressgard ® into a large patch management program will enhance fall color retention and improve turfgrass quality in spring.
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