Australian Stonefruit Grower Magazine Issue 4 April 2017 | Page 13

News Photo courtesy wikimdia commons Stink bug alert NZ hotel cleaners after discovering praised pest THREE m Brown marmorated stink bug (BMSB) Halyomorpha halys has been spotted in a New Zealand hotel. Which is too close for comfort for Australian orchardists. otel cleane after spotting the rs have been hailed as heroes br which is a pest with own marmorated stink bug, the potential to caus e damage to New Ze aland's horticulture widespread indu James Trevelyan, the managing di stry. Trevelyan's Pack & Cool Ltd, and rector of a long-time kiwifruit grower in found the brown m Te Puke, said the cleaners ar discoveries in Chr morated stink bug in separate istchurch, Whitiang Plymouth earlier th a and New is Investigations by year. th Industries conclude e Ministry for Primary d the bugs hitch-hi luggage from pred ominately Americ ked here in an visitors. S ome pests can sneak through quarantine and it might not always be imported products that are to blame but holidaying tourists. The brown marmorated stink bug is a particularly difficult pest to manage. Unusually for stink bugs, the - NZ Herald adults commonly invade structures and homes during winter, sometimes in large numbers. There they search for somewhere to hibernate. Suitable places include shipping containers, packing materials and, presumably, suitcases in fruit. Feeding causes shallow dimples on the outside people’s homes and in hotels. of fruit, with white or brown necrotic areas just under the Once the bugs warm up they become active – and skin. Attacks during early season have the greatest impact, hungry. Like other bugs they are sap-suckers and can feed with injuries extending right into the core of the fruit 2 . on a very large range of hosts. The adults are strong fliers, BMSB invasions have caused complete loss in USA able to travel more than 2km per day, while nymphs walk orchards in the Mid Atlantic region. This clearly a pest we and climb, covering 20m across grass in less than five don’t want in Australia. hours . Perhaps – like in NZ – we should also be training our 1 Originally from Asia, during the last 20 years BMSB hotel cleaning staff in how to spot these small, brown, and has spread to many parts of Europe and throughout North stinky invaders. America. 1  Whereas other stink bugs feed on leaves and stems, both nymph and adult BMSB feed directly on orchard summerfruit.com.au Lee D.-H, Nielsen AL, Leskey TC. 2014. Dispersal capacity and behavior of nymphal stages of Halyomor- pha halys evaluated under laboratory and field conditions. J. Insect Behav. 27:639-651. 2  Acebes-Doria A, Leskey TC, Bergh JC. 2016. Injury to apples and peaches at harvest from feeding by Halyomorpha halys nymphs early and late in the season. Crop Prot. 89:58-65. April 2017 | Australian Stonefruit Grower 13