The European corn borer (ECB) Ostrinia nubilalis Hb. is one of the most important insect pests of maize. The chemical treatment by means of self-powered spraying machines is the main strategy adopted in Northern Italy to control the pest. The success of the treatment mostly depends on the timing of its application. Phenological models can be successfully used for identifying the right application period for the treatments. The main objectives of this work were the validation of an existing ECB phenological model and evaluating its possible future use as a management tool in Northern Italy. Model accuracy was tested against data collected from traps placed in 26 collaborating maize farm fields in Northern Italy from 2010 to 2012. The ECB adult flight activity was monitored and the model was tested for its accuracy in simulating the occurrence of the first generation adult flight peak. The model resulted accurate in the explored conditions, unbiased (negligible tendency to overestimation), and it was able to explain 76% of variation. The model was able to predict the occurrence of the adult peak with an error of ±4.3 days (Root Mean Square Error). The observed level of error can be considered acceptable for effective chemical treatments.
|Autori:||Maiorano, A.;Donatelli, M.|
|Data di pubblicazione:||2014|
|Titolo:||Validation of an insect pest phenological model for the European corn borer (Ostrinia nubilalis Hbn) in the Po Valley in Italy|
|Rivista:||ITALIAN JOURNAL OF AGROMETEOROLOGY|
|Appare nelle tipologie:||1.1 Articolo in rivista|