Folia Horticulturae

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Effectiveness of Atonik SL in the control of powdery mildew, black spot, and rust

Adam Tadeusz Wojdyła

Research Institute of Pomology and Floriculture
Pomologiczna 18, 96-100 Skierniewice, Poland
e-mail: awojdyla@insad.pl

Atonik SL at concentration 0.1% applied 4-times at weekly intervals as a rose shrub spray against Sphaerotheca pannosa var. rosae gave more than 3-times lower disease appearance. Also when used in the same program against Sphaerotheca humuli on Viola × wittrockiana on protected plants, powdery mildew symptoms were noted only sporadically. In a field experiment Atonik SL used as a rose spray 9-times at weekly intervals against Diplocarpon rosae gave more than 3-times lower disease incidence than on control plants. On willow protected against Melampsora epitea about 7-times lower number of uredia were noted on leaves protected with Atonik SL. Also in the case of chrysanthemum protected against Puccinia horiana an about 5-times lower number of telia was noted on leaves in comparison with untreated plants.

Wojdyła A.T., 2004. Effectiveness of Atonik SL in the control of powdery mildew, black spot, and rust. Folia Horticulturae 16/1: 175-181.