Citrus Leafminer Control on Citrus, 1996

Abstract

Micromite, Alert and Provado were compared with the standard treatment Agri-Mek + NR 435 Oil for efficacy against CLM. Treatments were randomized and replicated 4 times on single tree plots in a 3-yr-old grapefruit orchard on 18 X 24 ft spacing. Trees were sprayed to foliar runoff on 12 Sep using a Hypro 5200 high pressure handgun sprayer operating at 200 psi. At each count date, 4 new flush terminals (each with 10-12 leaves) were randomly collected per replicate and taken to the laboratory. All live and dead CLM lst--4th stage larvae and pupae were counted on each terminal. The insects were recorded as dead by lack of movement and/or evidence of dessication when examined microscopically at 20 X. Percent mortality of all CLM immature stages was determined for each treatment.

Phyllocnistis citrella Stainton