help - for past two seasons all me leeks have been infected by crispy small browny-black beetles, smaller than match heads, that make their home throughout the stems. here in the czech republic no one seems to know what they are and i cant identify them from my english veg books. i just dont know with what and when to spray them (even though i largely manage without pesticides, i am prepared to make an exception and )with 150 seedling awaiting planting out, i cant face another disaster...and i am not even welsh.
