Alate aphids trapped over 8 years at two sites in Canterbury, New Zealand

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Abstract
Trapping of alate aphids at two sites with grease traps over 8 years yielded a total of 51 species, 9 of which flew regularly in high numbers and are referred to as primary species. Six others occasionally occurred in high numbers The validity of likely inferences from information collected by this method is discussed, as is also the application of the knowledge of flights to problems of aphid control.