If you are deliberately introducing natural enemies, presumably you have a reasonably good idea of what they look like (or you should have). We all know that pest problems can enter our greenhouses from the great outdoors; and once they have a foot in the door, the year-round Florida climate and never-ending smorgasbord make it awfully hard to persuade them to leave. However, the bad guys (the thrips, aphids, whiteflies, plant bugs and leafhoppers) are not the only visitors wanting to take advantageof your hospitality. They just happen to be the most obvious and the hardest to get rid of. Coming in right behind the pests is a vast array of good guys, whose appetite is not directed at your crop but at the pests who have made your greenhouse home.
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