Aphid parasitoid wasp for rose aphid
Rose aphid is a large Macrosiphum aphid, and colemani is sold only for the small ones. Its close relative potato aphid is not a workable host: colemani stings it but cannot complete its development. No trial on rose aphid itself was found. Koppert sells Aphidius ervi for large aphids such as Macrosiphum species, but no supplier we checked names rose aphid. In the garden, wild parasitoid wasps (among them Aphidius rosae) are important, as are hoverfly and wild lacewing larvae; UC IPM says releasing lacewings has not given significant control of rose aphid in trials.
Before you order
Released preventively under glass from soon after planting; for the small aphids — green peach, melon and tobacco aphid. How it works, how to tell it has established and the supplier list are on the full Aphidius colemani profile.
How many do I need?
Area and infestation level in; quantity, cost and a weekly schedule out. Open the calculator →
Pesticide sensitivity
Check anything applied in the last month before releasing. Check a product →
Other controls for rose aphid
- HoverfliesWild predator (larvae) · Wild — attract adults with open flowers
- LadybugsWild predator · Nothing to release — conserve the ones already there
- Aphidoletes aphidimyzaPredatory midge · 1–10 /m² per release, weekly
- Soldier beetlesWild predator (larvae; some adults) · Wild — conserve; leave the beetles on the roses