The origin of spring flights of Heliothis punctigera Wallengren in South Australia [native budworm]
1986
Learmonth, S.E. (Western Australian Dept. of Agriculture, Manjimup)
To determine if local weather conditions were consistent with the timing of spring flights of Heliothis punctigera, an attempt was made to develop a model based on the rate of pupal development during winter. This involved studies on diapause and post-diapause development. The diapause development portion of the model was not formulated because of its complex nature. A preliminary model was developed for post-diapause development and provides a basis for field verification. A cursory assessment of synoptic weather patterns indicated that migration from outside the area of study was unlikely.
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