Reference Report for IND80127292
| Title: | Dispersal of Nezara viridula and Piezodorus guildinii nymphs in soybeans. |
| Authors: | Panizzi, A.R., Galileo, M.H.M., Toledo, J.F.F., Wild, C.H., Gastal, H.A. de O. |
| Source: | Environ. Entomol. 1980, 9(3)293-297 |
| Abstract: | Dispersal of Nezara viridula (L.) and Piezodorus guildinii (Westw.) nymphs, the 2 most abundant stink bugs in soyabean in Brazil, was studied. Results showed that they moved more along than across rows. The maximum distance recorded for both species along rows was 12 m, while across rows was 7.2 m for N. viridula and 4.8 m for P. guildinii. The total number of nymphs recaptured was higher for P. guildinii than N. viridula, and the recovery rate decreased with increase in distance from the release point. Nymphs in the second and third instars showed strong aggregation, and dispersal was more pronounced in the fourth and fifth instars, which were the principal ones involved in colonisation of the field. Dispersal patterns of the nymphs best fitted the equation Y = a + b log x + c/x, where Y = density, x = distance from the release point, a = intercept, b = slope, and c = a proportionality constant. |
SoyBase
Follow us on Twitter @SoyBaseDatabase
