A sequential sampling plan for treatment decisions for the mango leafhoppers, Idioscopus spp.
Corey F. M. Jr., Cadapan E. P., Sanchez F. F., Benigno E. A.
Author Affiliation: Crop Protection, Bureau of Agricultural research, DA, Quezon City, Philippines.
Philippine Entomologist 7 : 543-549
Abstract : A sequential sampling plan for treatment decisions was developed for the mango pests Idioscopus clypealis and I. niveosparsus from population data gathered in Cebu, Philippines, for 2 croppings. Based on the control threshold level and negative binomial distribution, the decision lines d = 1.72n ± 4.54 are determined, where n is sample number.