Rice Pest and Disease Biosecurity II
This project tests the accuracy of a number of assumptions about the population biology, impact, and potential control of armyworms on rice in southeast Australia.
The assumptions that will be tested include:
- that only one species (Leucania convecta) is involved;
- that current estimates of economic thresholds are appropriate;
- that methods for the selection and identification of chemical treatments are appropriate;
- that parasitism rates in rice may be very high;
- that armyworm invade the crop after migration from breeding areas in western rangelands; and
- that only a single generation occurs within a crop due to parasitism-induced larval mortality and inadequate pupation sites in flooded crops.
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