Just watched Gardeners World on UKTV Gardens.They had on there some lacewing larvae which you can buy[in cardboard trays]to control aphids.
1 Has anyone bought some and from where?

2 Does it work?

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The greatness comes not when things go always good for you,but the greatness comes when you are really tested,when you take,some knocks,some disappointments;because only if youv'e been in the deepest valley can you ever know how magnificent it is to be on the highest mountain.