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Chives

Chives belong to the onion family. Chives are related to onion, leeks and garlic.

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Foto: JoJan - CC BY-SA 3.0

Chives (Allium schoenoprasum) belong to the onion family (Allium). Chives are related to onion, leeks and garlic. Pre-sow under glass in February or outdoors in March; harvest: April-summer. Sow in April in the open ground. Chives should not be too dry. After flowering, the stem deteriorate in quality. Cutting out the flowers slows down this process. Leave a few flowers and set seed; chives self-seed themselves.

Bugs

recognize damage by insects
Leaf suffering from thrips, photo: Swapnil.Karambelkar – CC BY-SA 3.0

Shiny spots on leaf, on the underside are insects: thrips (Thysanoptera).

Leaf yellows, dies; plant rots away: onion fly (Delia antiqua).

Deformed, twisted and here and there swollen leaves: stem nematode (Ditylenchus dipsaci).

Plants show tunnels in the tubers and contain brown pupae: Allium leaf miner (Phytomyza gymnostoma).

Fungi & diseases

Bulb and plant rot away from top to bottom: neck rot (Botrytis allii).

recognize damage by onion white rot
Infestation by white rot (Sclerotium cepivorum), photo: plantix.net

Leaves turn yellow and wilt; lower bulb and roots covered with thick, white mold. There are black spots on the affected parts: onion white rot (Sclerotium cepivorum).

A gentle decay of plant parts and growth of fluffy grey-brown fungus: Grey mould (Botrytis cinerea).

Orange-brown spores on stem: leek rust (Puccinia porri).

Other

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