Horticultural pest and disease threats to New Zealand

Find out about some of the pests and diseases that threaten the plants that we grow to eat and sell. These pests and diseases are a priority for Biosecurity New Zealand. They're not in New Zealand and we want to keep it that way.

In this section

I tēnei wāhanga

Aster yellows phytoplasma

Avocado sunblotch disease

Bacterial leaf scorch

Bacterial soft rot

Black rot

Brown marmorated stink bug

Citrus longhorn beetle

Columnea latent viroid (CLVd)

Flavescence dorée of grapevine

Giant African snail

Kanzawa spider mite

Laurel wilt and the Asian ambrosia beetle

Maize lethal necrosis disease

Medfly (Mediterranean fruit fly)

Melon fly

Oriental fruit fly

Painted apple moth

Pea early-browning virus

Pea weevil

Potato spindle tuber viroid (PSTVd)

Psa – new strains (kiwifruit vine canker)

Queensland fruit fly

Red imported fire ant

Ryegrass bunt

Serpentine leaf miner

South American fruit fly

Spotted lanternfly

Spotted wing drosophila

Texas root rot

Tomato apical stunt viroid (TASVd)

Tomato torrado disease

Tomato brown rugose fruit virus (ToBRFV)

Violet root rot

Wheat stem rust Ug99