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I got a call yesterday about yellowing avocados. They are on Dusa rootstock which is very tough when it comes to root rot, but cannot handle wet feet. It turns out that this area is one where the grower cannot order water on demand, but must take it when the water company will deliver.

Agricultural spray adjuvants are materials added to the spray tank when loading the sprayer. They include products classified as activator adjuvants and marketed as wetters/spreaders, stickers, humectants, and/or penetrators.

Introduction The economic sustainability and consequent longevity of Californias historic black ripe table olive industry is challenged by the crippling cost of hand-harvest, a cost that often exceeds 50-75% of gross return.

At first thought this sounds like a dumb question. Of course we need to schedule irrigations just like we schedule lunch; we get hungry, plants get thirsty. End of story.

Avocado leaves infested with trioza was intercepted in March at the San Diego/Mexico border. Avocado leavers are used to wrap tamales. Trioza infested leaves make a tastier tamale. Introduction Figure 1. Adult Trioza on a Hass avocado leaf.