Topics in Subtropics

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.

In recent years, several organic herbicide products have appeared on the market.