What you should have invented is a anti virus whose distribution you can control. Not a virus that removes a malware. The point behind a virus is a technology difficult to control. Now you invent a beneficial technology extremely difficult to control and which spreads. And then you express surprise when it actually spread?

Honey bees or in general bees are used by nature for cross pollination. If bees are spreading your technology then really its not the farmer that you can blame here. Those bees can fly anywhere. This can spread to a jungle and suddenly you might be faced with a scenario of this thing having spread beyond uncontrollable means. Whom will you sue then?