Abstract
Aphids, insects in family Aphididae, are common, minute organisms (~ 5mm) that thrive in agricultural settings by sucking phloem sap via stylets that penetrate the plants vascular tissue. Past research has demonstrated the effectiveness of pesticide treatments to eradicate these destructive insects, however many of the most commonly used pesticides are highly toxic synthetic compounds. In our previous research we examined the effectiveness of synthetic, organic, and insecticidal soap pesticides on aphid infestations. This current study aims to determine the effectiveness of another alternative, known as biological control, for treating aphid problems. The biocontrol agent used in this study was the lady beetle (Hippodamia convergens). Results indicate the lady beetle is an effective alternative to pesticide use. When compared to the control, a significant reduction in numbers and near total elimination of oleander aphids (Aphis nerii) was observed over a five day period on scarlet milkweed plants (Asclepias curassavica). The use of bio-control agents reduces dependency on harmful, synthetic pesticides and should be considered a viable option for consumers looking for an environmentally friendly treatment for aphid infestations.
Faculty Sponsors
Dr. Paul Arena, Dr. Jason Gershman
Project Type
Event
Location
Alvin Sherman Library
Start Date
4-13-2012 1:00 PM
End Date
4-13-2012 5:30 PM
Effectiveness of a Biocontrol Agent on Aphid Infestations
Alvin Sherman Library
Aphids, insects in family Aphididae, are common, minute organisms (~ 5mm) that thrive in agricultural settings by sucking phloem sap via stylets that penetrate the plants vascular tissue. Past research has demonstrated the effectiveness of pesticide treatments to eradicate these destructive insects, however many of the most commonly used pesticides are highly toxic synthetic compounds. In our previous research we examined the effectiveness of synthetic, organic, and insecticidal soap pesticides on aphid infestations. This current study aims to determine the effectiveness of another alternative, known as biological control, for treating aphid problems. The biocontrol agent used in this study was the lady beetle (Hippodamia convergens). Results indicate the lady beetle is an effective alternative to pesticide use. When compared to the control, a significant reduction in numbers and near total elimination of oleander aphids (Aphis nerii) was observed over a five day period on scarlet milkweed plants (Asclepias curassavica). The use of bio-control agents reduces dependency on harmful, synthetic pesticides and should be considered a viable option for consumers looking for an environmentally friendly treatment for aphid infestations.
