Development of a monitoring system for corn borer Ostrinia furnacalis (Guenee) [Philippines]
1987
Cayabyab, B.F. | Benigno, E.A.
Kerosene light trap, crude pheromone extract and no bait were tested for 1985 wet season. Statistically, the light trap is significantly higher than the rest. Virgin female, light trap, crude pheromone extract and no bait were studied for 1986 dry season. Statistically, the most efficient was the virgin female, followed by kerosene light trap and the crude pheromone extract. Except for the 50 female tips extracted from acetone, all the extracts were not significantly different from the control. To relate the monitored data with practical insect pest management, a model that can predict a single field population of the corn borer by age class was used. Simulation were done on 7, 9, and 14 days catches by 25 female tips extracted from heptane and light trap during the wet season. In addition to this, another run of the model using pest management sub-routine and the same immigration data were processed. The same immigration data were used for the virgin female data during dry season. The observed adult peak timing was correctly predicted during wet season. The simulated peak egg deposition was nearly predicted in both season when compared to the observed peaks.
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