Topics in Subtropics

Avocado leaf analysis is an important guide to nutrient management, along with good irrigation management and correct soil pH.

Leaf analysis is what guides perennial crop fertilization. It's a better guide than soil analysis which mainly indicates soil problems and reflects irrigation management. It's critical for measuring soil pH which is probably the most important chemical property of soils.

This is a website that covers the gamut of issues affecting soils and plants.

Heatwaves above 95 °F are showing up more often in citrus and avocado growing areas, pushing fruit surface temperatures to the point of damage along with damage to leaves and the canopy. Sunburn is no longer a rare problem: in avocado, for example, repeated hot, clear days can quickly lead to severe sunburn…

HLB has been found in an Imperial County commercial orchard and the quarantine area for Sweet Orange Scab has been expanded in the Orange County area