AbstractsBiology & Animal Science

Treehopper and Leafhopper Population Dynamics Following Spring Furadan Alfalfa Stubble Treatment

by Tim C. Knowles

Institution: University of Arizona
Year: 1999
Keywords: Agriculture  – Arizona; Grain  – Arizona; Forage plants  – Arizona; Alfalfa  – Arizona; Alfalfa  – Insect control
Record ID: 1701615
Full text PDF: http://hdl.handle.net/10150/205154


A study was conducted in Mohave Valley to examine population dynamics, economic thresholds, and management strategies for potato leafhopper and treehopper (three cornered alfalfa hopper) in desert alfalfa. In 1998, three distinct peaks of adult treehoppers occurred in August, September, and October. Adult potato leafhoppers were detected earlier in the study, with four distinct peaks noted in June, July, August, and September. Spring Furadan alfalfa stubble treatment reduced initial adult treehopper infestation following application by 40-60% and the initial potato leafhopper infestation was reduced by 25-50 %.