I have lost my basil & cilantro, and now the aphids are working on my rosemary. I only have a rectangular planter 5x6x24 in which I grow my herbs. Please tell me what I need to do to get rid of these pests in this small area. Perhaps I should remove the other herbs and put this metal planter in the oven, and cook these little buggers.
Your input would be appreciated.
Aphids can be persistent once they get active in any garden, large or small. Though small areas should be easier to manage, many times the aphids run amok seemingly overnight and before you know it, all your plants are consumed. As a general rule, herb gardens need to be treated with care. We only recommend organic solutions and we have several that can cure this problem.
Since your garden is so small, I recommend the ORGANIC HOUSE PLANT INSECT KILLER. This ready to spray aerosol is quick acting and safe enough to use daily if needed – even on plants you’ll be eating like herbs. It won’t last long (only about a day after its applied) but weekly treatments should keep them at bay once you have the current problem under control. For now, treat every day till you don’t see any and then once they’re all gone, try to go several days without treating. Once you can go 7 days with no aphids you will have the problem pretty much under control. At that point you could choose to not apply it anymore but if you do a light treatment once a week, they won’t be able to return. We recommend this once a week spraying to keep the aphids (and other pests) from returning. If you end up growing a larger garden at some point, consider one of the other organic aphid products we have listed in our APHID CONTROL ARTICLE.