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Hi, this is my second year of growing my own salad and veg, this year i've moved upto a 8 x 6 green house and so far everything is growing quickly. My issue is, this morning i went into the greenhouse and discovered on my mint plant hundreds of little green lumps all up the stems, are these green fly waiting to hatch out??

On closer inspection some are moving, defo look like green fly.
Alina W

You can wash greenfly off with mildly soapy water, but they will come back - they are a major pest in greenhouses in winter, as there are few predators.

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