Gardeners' Bane is a term used to describe the various pests and WEEDS that can plague a garden. WEEDS, which are plants growing in an unwanted location, are a common problem for gardeners and can be controlled with herbicides or manual removal. Aphids are small insects that feed on plant sap and can cause damage to plants by sucking out their nutrients. WEED is another term for an unwanted plant, and can also be controlled with herbicides or manual removal.