Disease Archives - Page 8 of 8 - West Coast Nut

-Advertisement-

Disease



1,000 Cankers Disease: Everything You Need to Know For Walnuts

By Mohammad Yaghmour, Area Orchard Systems Advisor Kern Co
and Elizabeth Fichtner, UCANR Advisor Tulare and Kings Cos

The walnut tree (Juglans sp.) is well known for its valuable wood and timber quality and its nutritious nut.  Different native species of walnut are an important part of the ecological system in North America.  Eastern black walnut (Juglans nigra) is native to eastern North America from the northeast in Vermont and southern Ontario to Minnesota and south to Florida.  It also ranges east from the Atlantic coast to central Texas except the Mississippi River Valley and Delta.  Juglans nigra has an important economic value estimated at more than $500 billion for its wood and timber alone.  Among the other...

Read More

Almond Disease and Control

By Julie R. Johnson, Contributing Writer

From planting to maturity and crop production, almonds trees can be host to a plethora of diseases, be it bacterial, fungal, viral, parasitic or phytoplasmal. These diseases and how to control them was the topic of Dr. Jim Adaskaveg's presentation during this year's North Valley Nut Conference hosted by West Coast Nut in conjunction with the UCCE Butte/Glenn Counties Almond and Walnut Day at Silver Dollar Fairgrounds in Chico. Adaskaveg, professor and plant pathologist with the Department of Plant Pathology, UC Riverside, who specializes in foliar disease of almonds and other tree crops, shared the springtime diseases of almond that...

Read More

Blight Control in Walnuts

By Julie R. Johnson, Contributing Writer

Blight's description “as any cause of impairment, destruction or ruin,” definitely applies to Xanthomonas arboricola pv juglandis (Xaj), a pathogen of Walnut Blight and the topic of Richard Buchner's presentation during this year's annual Walnut Trade Show hosted by West Coast Nut. Buchner, UCCE Orchards Advisor, Tehama County, said walnut blight caused by Xaj can cause significant crop loss and determining an orchard's risk is often a matter of guess work. “Three things are necessary for the disease to occur,” he explained, “pathogen, host and favorable weather. This is often referred to as the disease triangle.” One of Buchner’s “take...

Read More