Tagetes webinar 2: Successful finish

5 th component of success – Alternaria protection

• Most dangerous Tagetes disease is Alternaria.

Disease

Active ingredients (rate in chemical)

Active Ingredient concentration in solution g/l* 3.2 g/l mancozeb + 0.2 g/l mefenoxam 0.4 g/l azoxystrobin + 0.16 g/l cyproconazole

Use as profilactik

+

mancozeb (640 g/kg) + mefenoxam (metalaxyl-M) (40 g/kg)

azoxystrobin (200 g/l) + cyproconazole (80 g/l)

Alternaria

+

fludioxonil (25 g/l)

0 .05 g/l 0.04 g/l 1.25 g/l

difenoconazole (25 g/l)

iprodione (50%)

tetrachloroisophthalonitrile (82.5%)

0.83–1.2 g/l 0.5 – 0,75 g/l 0.75 – 1,25 g/l

Botrytis

fenhexamid (50%)

pentachloronitrobenzene (75%)

* Don’t forget to check phytotoxicity!

Alternaria spores

Public

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