Most common Helianthus diseases.
Disease
Active ingredients (rate in chemical)
Active Ingredient concentration in solution*
Use as prophylactic
azoxystrobin (50%)
0.15 g/l
Pythium*
pyraclostrobin (12.8%) + boscalid (25.2%)
0.03 – 0.07 g/l pyraclostrobin or/and 0.05 – 0.15 g/l boscalid
propamocarb (600 g/l)
1.8 g/l
+
iprodione (50%)
1.25 g/l
tetrachloroisophthalonitrile (82.5%)
0.83 – 1.2 g/l
Botrytis
fenhexamid (50%)
0.5 – 0,75 g/l
pentachloronitrobenzene (75%)
0.75 – 1,25 g/l
Penconazole (100 g/l)
0.04 g/l
Powdery mildew
azoxystrobin (250 g/l)
0,25 g/l
iprodione (50%)
1.25 g/l
azoxystrobin (50%)
0.15 g/l
fludioxonil (125 g/l)
0.05 – 0.07 g/l
Rhizoctonia
chlorothalonil (72%) + thiophanate-methyl (18%)
0.75 – 1,25 g/l chlorothalonil or/and 0.18 – 0,27 g/l
pentachloronitrobenzene (75%)
0.75 – 1,25 g/l
polyoxin D zinc salt (11.3%)
0.07 g/l
** Concentration of active ingredient in the commercial chemical.
* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Don’t forget to check phytotoxicity!
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