|Honeydew on pecan leaflet|
Turn a honeydew-coated leaf over and you will find several aphids lined up along the major leaf veins (photo below). Immature aphids are yellow and wingless. Adult aphids also yellow but have clear wings with a streak of black along the outside edge.
|Black-margined aphids feeding on pecan|
|Harmonia lady beetle|
|Lacewing egg attached by a silken thread|
|Spider hiding in webbed nest between nuts|
In most cases, we do not try to control black-margined aphids with insecticides. Over-use of insecticides usually leads to the elimination of beneficial insects, creating a huge rebound explosion in aphid populations.