Armoured scale infestation of fruit of Hort16A kiwifruit

Abstract

Hort16A Actinidia chinensis is a new yellowfleshed kiwifruit cultivar Monitoring of unsprayed vines at Kerikeri and Te Puke Research Centres from 1996 to 1999 showed that armoured scale infested on average 47 (SE 04) of fruit at harvest with an average of 11 (SE 19) scale per infested fruit Greedy scale Hemiberlesia rapax was the dominant species found on fruit A survey of orchards managed using the KiwiGreen programme found five crops with 04 35 scale infested fruit which were successfully exported One crop which had 25 scale infested fruit was unable to be exported Fruit rejected in the packhouse for scale were found to have an average of 289 scale per fruit indicating that breeding occurred on the fruit Control of scale will be essential for the success of Hort16A as an export crop