California and Arizona Root Health

How nematodes put grapevines at risk 


Managing the Asian citrus psyllid (ACP) and Huanglongbing (HLB) in California citrus trees

Maintaining Healthy Roots

Not all risks to yield are easy to spot – some exist below the surface. Root health is essential to overall crop health. Without it, plants are more susceptible to stress factors, such as cold spells, drought and disease.

Nematodes, though small, are one of the major challenges to the root health of California and Arizona nut, grape, citrus, vegetable and berry crops. These tiny roundworms feed on plants’ roots, limiting their ability to take in vital nutrients and drastically reducing yield and vigor.

To stop nematodes, growers must stay vigilant. Monitoring and cultural practices – paired with crop protection products – can protect trees and vines, ensuring healthy crops and strong productivity.



Protecting almond orchards from nematodesProtecting Almond Orchards from Nematodes

Nematologist Mike McKenry explains how rootstock choice, soils and treatment plans affect the impact of these damaging pests.

» Watch the webinar




Almond orchard row longshotHelp Almond Crops Thrive Against Pests

Pests like nematodes can be tough to treat in established orchards. But new post-plant solutions can help.

» Rethink your approach



Bunch of wine grapes on vine closeupNematode Management in Wine Grapes

Proactive measures help California growers safeguard their wine grapes against harmful pests.

» Protect your vineyard



Guide to nematode management in grapes

Nematode Management Guides

These University of California publications describe best practices for managing nematodes.

» Grapes
» Almonds
» Pistachios
» Walnuts






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