[NJ88]

Hello all,

When does fungicide rotation become important if one uses propiconazole 2-3 times yearly during July and August ? I have been getting small patches of brown patch and pythium blight yearly. I used Companion biofungicide and TKO phosphite for the first time this year and still have the same issues (but less severe).

I see a "big gun" product like Headway runs into the hundreds....my lawn is only 6,000 sq. ft..

Also, can patches recover from brown patch without reseeding ?

 

[j4c11]

Hello all,

When does fungicide rotation become important if one uses propiconazole 2-3 times yearly during July and August ?

2-3 times I wouldn't worry about it.

Also, can patches recover from brown patch without reseeding ?

Theoretically yes but I've never seen it happen with fescue. Of course here in the transition zone there's other stresses.

 

[NJ88]

Thanks for the reply j4c11. I can use it yearly without worrying about resistance built up over time ?