Potato Aphid (Macrosiphum euphorbiae)
Large aphid species found on potatoes, tomatoes and ornamentals.
Potato aphid (Macrosiphum euphorbiae) is a relatively large aphid that colonises potatoes, tomatoes and many ornamentals. It feeds on stems and undersides of leaves, causing leaf curl, distortion and reduced vigour. It can also transmit viruses. Biological control includes parasitoids such as Aphidius ervi and predators including lacewings and ladybirds, alongside cultural measures such as weed reduction and balanced nutrition.
Biological Controls for Potato Aphid (Macrosiphum euphorbiae)
The species below are examples of beneficial organisms commonly used against potato aphid (macrosiphum euphorbiae). Recommendations are based on published biological control information and practical IPM experience. Always confirm suitability for your crop, growing system and local conditions before use.
Aphidius ervi
Environment: glasshouse
Temperature Range: 12.0 – 28.0°C
Rate: 0.25–1 wasp/m²
Frequency: Weekly while colonies persist
Well suited to larger potato aphid; often combined with Aphiline in mixed populations.
Further BioWiki Reading
For more background on pest biology, beneficial insects and environmental factors, use the BioWiki alongside this practical control guide.
Related Biological Solutions
Growers dealing with potato aphid (macrosiphum euphorbiae) often also monitor these pests as part of a complete IPM programme: