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i did grow collies but they stopped growing so i pulled them up and open the stalk up and found it was dead with a maggot sort of thing in it any idea what it is and how to stop it in the future ?

By pauly001 on 15 July 09 in Pests and diseases | Report misuse

1 Response

  • Sounds like cabbage root-fly, it can effect all brasicas. In future when planting place a protective "collar" at the base of the plant. These can be bought from garden centres but it's simply a disc of card or similar with a small hole in the centre for the plant stem and a slit from the edge to the hole which alows it to be placed round the base of the plant. This stops the cabbage root-fly from laying it's eggs near the plant roots.

    By helenscape on 16 July 09 | Report misuse

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