A summary of the statistical analyses on the effects oftreatments on the mean number of S. avenae,ladybeetles, and mummified aphids are given in Table1. There was a significant difference in S. avenae(P<0.01) between different treatments. Wheat cultivarsalso influenced observed numbers of S. avenae(P<0.01) and ladybeetles (P<0.01). There were sig-nificant interactions between cultivars and treatmentsfor S. avenae (P=0.048). However there was no significantdifference detected in mummified aphids in thewheat cultivars and treatments and their interactions
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