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Cabbage Root fly

How do you stop cabbage root fly attacks?

Try covering your plants immediately after planting out with an agricultural fleece.

Plant out in a different bed each year to ensure you are not affected by over wintering fly pupae in the soil.

 

I have come across some small white maggots eating the roots of my cabbages, how do I get rid of them?

The small white maggots are the larvae of the Cabbage root fly and they live in the soil and eat the roots of cabbages and other brassicas.

Infested plants wilt, especially in dry weather, and young plants may be killed.

The adult flies are active in April and May when they lay their eggs on or near plant stems at soil level.

Three generations of adults develop during the summer and attacks may persist until mid-September.

This pest is now resistant to many of the insecticides available to the amateur, so it is best to alternate between different pesticides at each treatment, thus reducing the chances of non resistance.

Jeyes fluid although a disinfectant can be applied as a soil drench prior to planting,

It is thought that the fly is deterred by the smell so it moves on and lays its eggs elsewhere.

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