APAC Pelargonium Webinar 2: Successful Finish

Disease management

Most common Pelargonium seedling diseases.

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 prophylactic

+

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 0.15 g/l

difenoconazole (25 g/l)

azoxystrobin (50%)

Rust

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

0.4 g/l azoxystrobin + 0.16 g/l cyproconazole

+

mancozeb (640 g/kg)

3.2 g/l

iprodione (50%)

1.25 g/l

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%)

* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Check phytotoxicity!

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