Estimation of absolute larval densities and calibration of relative sampling methods for velvetbean caterpillar, Anticarsia gemmatalis (Hubner) in soybean Florida.

Reference Report for IND82069547

Title:	Estimation of absolute larval densities and calibration of relative sampling methods for velvetbean caterpillar, Anticarsia gemmatalis (Hubner) in soybean Florida.
Authors:	Luna, J.M., Linker, H.M., Stimac, J.L., Rutherford, S.L.
Source:	Environ. Entomol. 1982, 11(2):497-502
Abstract:	Two methods for estimating absolute densities of 3 size classes of larvae of the noctuid Anticarsia gemmatalis Hb. in soyabean fields are described and evaluated. These absolute-density estimation methods, and also sweep-net and ground-cloth, were used to sample field populations of A. gemmatalis larvae in soyabean in Florida. These data were used to derive equations converting sweep-net and ground-cloth larval density estimates to absolute-density estimates. Calibration equations for converting sweep-net estimates to ground-cloth estimates are also presented.

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

U.S. Public Domain