Working with copper

By |March 15th, 2013|

Copper is a potent spray chemical, useful on many stone and pome fruits. It is active against bacterial diseases [...]

Kill the pathogen

By |March 15th, 2013|

Apple scab is a serious problem in humid climates, and McIntosh is very susceptible. Lesions occur on both leaves [...]

Bacterial canker

By |March 1st, 2013|

The weather turned hot and dry—­conditions conducive to healing the cuts without making the canker situation worse. Then, the [...]

Last Bite

By |February 15th, 2013|

1  Which of the following is not a fruit symptom of little cherry disease?
a.    Small size
b.    Poor [...]

Fireblight-resistant apple

By |February 15th, 2013|

Ladina, a new high-quality apple variety with low susceptibility to fireblight and mildew, has been developed by a Swiss [...]

An expensive disorder

By |February 15th, 2013|

Photos courtesy of Bhaskar Bondada

A shrivel is not just a shrivel.

Of the various types of shrivel impacting grape quality, [...]

Identifying grape shrivels

By |February 15th, 2013|

In the past, grape growers have mistaken any shrivel in their fruit for grape berry shrivel, also known as [...]

Turning on a plant’s defenses

By |February 15th, 2013|

New technology is coming to the apple and pear industry to help control fireblight. Actigard is a systemic compound [...]

Coppers are a fit for organics

By |February 15th, 2013|

Before the 1960s, there were no antibiotics to help orchardists control fireblight, one of the most destructive diseases of [...]

Fireblight is native to North America

By |February 15th, 2013|

Fireblight is a plant disease of apples and pears caused by the bacterium Erwinia amylovora. It is native to [...]