Psa knowledge base
Psa Management Information
An information resource for kiwifruit growers on the management of Pseudomonas syringae pv actinidiae (Psa) in New Zealand.
Psa is now present in New Zealand. Good management techniques are required to reduce unwanted loses. Below are a series of links which we hope will provide growers with more information on managing Psa and will enable growers to devise or choose the best option to reduce loses from Psa, re-establish strong, healthy growth and achieve high returns.
Cautionary advice on the use of copper and streptomycin in the fight against Psa infection. How streptomycin and copper will affect your plants, the effect of copper on Pseudomonas fluorescence.
PSA Integrated Management Plans
Two recommended PSA management plans. Advice on PSA treatment methods. Management plans to increase OGR despite PSA infection.
An article on the use of Agrizest in kiwifruit orchards to treat stressed or damaged plants. The results in the article show that damaged plants treated with Agrizest can allow you to recover OGR and even out-perform healthy plants.

A Psa resource providing information to growers on orchard management practices which can reduce economic loses due to Psa infection in kiwifruit. This article includes information on how to control Psa as well as improve productivity. Strategies and systems are described in detail to help you understand the risk and progression of infection and how to tailor your response to reduce loses due to Psa.
External links
Kiwifruit Vine Health Seasonal management Guide
http://www.kvh.org.nz/springmanagement
Zespri Canopy
Psa Info
An open forum for the free exchange of information between kiwifruit growers and any other parties that have a common interest in learning how to successfully manage Psa and related matters.
