Aphid Parasitic Wasp - Aphidius ervi Size:500 The ferric phosphate formula is

The ferric phosphate formula is a natural active ingredient

This can lead to yellowing of the grass and patchy areas of lawn

Wait for at least 15 minutes after placing the hives down before opening them

Place the sachets away from where you have set up your traps

Aphid Parasitic Wasp - Aphidius ervi Size:500 The ferric phosphate formula isWhat Are Aphids & How Do I Identify Them? Aphid is a name for a large group of insects, many of which can cause serious damage to plants. They extract sap from plants causing a reduction in plant growth, reduced yields, and sometimes defoliation. Aphids can also secrete toxic substances into the plants. The Aphids take proteins from the sap and then excrete the excess sugar left in the sap back onto plants. This causes a sticky mess on the leaves,