Embroiled in the midst of a “please explain” from the World Trade Organisation, monopoly kiwifruit exporter Zespri is sticking to its knitting - or picking.

The WTO, prompted by the United States, has asked the New Zealand government to explain further the anti-competitive behaviour of the exporter, which is protected by legislation.

Zespri, in an emailed missive this morning, said it was focused on ensuring a successful finish to the kiwifruit selling season and will not become publicly engaged in the detail of trade policy issues.