|
Celery fly This pest is not as serious on parsnips as it is on celery, it will still do sufficient damage to reduce growth significantly, because it attacks and interferes with the chlorophyll making mechanism of the leaves. The tiny adult flies lay eggs on the foliage and the small maggots which emerge burrow into and through the leaves, producing white or brownish blisters as they go.
Normally good cultivation will enable the plants to grow back after attack, but in the worst cases the most badly affected leaves should be removed and the remainder sprayed with an insecticide. Alternatively you can kill the maggots by squeezing them, still in the leaf, between your finger and thumb.
|
|
|||||||||||||||||||||||||
