Merchento are the proud manufacturers and suppliers of Vespex® ‒ a significant advance in wasp control. Our product range is set to increase, with some exciting new and innovative product developments underway, so make sure to check back from time-to-time.

Go to Vespex wasp bait page

Click on the wasp logo to go straight to Vespex® page


Christmas and New Year Closure Times

Last day for orders this year is Friday 14th December, with the last shipment date being Monday 17th December.

Our office is closed from Tuesday Dec 18th  and re-opens Monday, 7th January 2019.



Book Offer!

For everyone wanting something to read over the summer holidays or wanting to learn more about wasps and the problems they cause in New Zealand, we are delighted to offer The Vulgar Wasp by Phil Lester of Victoria University at a discounted rate of $25.00

A riveting account of an extraordinary animal. Lester engages readers in the biological complexities and wide-ranging impacts of a “scary” wasp as an excellent example of controversies swirling around biological invasions.’ — Daniel Simberloff, Professor of Environmental Studies at the University of Tennessee and author of Invasive Species: What Everyone Needs to Know.

Cover photo by Colin McDiarmid


Expanded Wasp Wipeout 2018

After a very successful trial Wasp Wipeout in 2017 in the Nelson/Tasman area, Fairfax Media is working with the Department of Conservation and the Tasman Environmental Trust to run an expanded Wasp Wipeout campaign this year, with new target areas in Marlborough, Canterbury, and Coromandel, as well as the Nelson-Tasman area.

Find out more about Wasp Wipeout




Recent changes to shipping regulations regarding all material classed as dangerous goods means it has become increasingly difficult to ship Vespex® to the North Island. We can no longer use standard courier services to get parcels of Vespex® across the Cook Strait as it cannot go by air and cannot travel on any vehicle ferries that carry passengers. This typically adds at least 24 hours to delivery times. In addition to this, we have begun to experience issues with some Courier Post drivers refusing to carry items classed as dangerous goods (DGs) to rural addresses, but we are unable to determine in advance which rural addresses might be affected. Even if a rural delivery service will take DGs, it will add an additional 24-48 hours to delivery times. The combined effect of this situation is that we can no longer support delivery of Vespex® to any North Island address classed as rural by our courier service provider. If you know your home address is likely to be rural, please provide an alternative delivery address in town (e.g. a relative's house or a store you have a working relationship with). Alternatively, please contact us and we will provide the address of your nearest Fastway agent.  So far, South Island rural addresses are unaffected by these changes.





© Copyright Merchento Ltd 2016

Phone   +64 3 539 0508