Topics in Subtropics

Diseases, disorders and other plant problems are critical concerns for the wholesale nursery.

Dry Root Rot is a pretty fantastic disease symptom that is usually seen in lemon, but can be seen in orange, as well. Craig Kallsen, UCCE Citrus Advisor in Kern Co. comments on a disease sample: I have seen a lot of dry root rot over the years.

By: Carey Gillam, Reuters Honey bees, critical agents in the pollination of key U.S. crops, disappeared at a staggering rate over the last year, according to a new government report that comes as regulators, environmentalists and agribusinesses try to reverse the losses.

There is an increasing use of high stature plastic tunnels (macro-tunnels) to grow high value crops, such as raspberries, blueberries, vegetables and flowers. This is even in relatively frost free environment, such as coastal California.

When you see dieback in an avocado it could be due to several reasons, and here are three very common causes of dieback, one of which has been especially common when there is little rain. The first major cause of dieback is an overgrown tree where there is no light that penetrates into the canopy.