Topics in Subtropics

In the last two decades, many distinctive citrus selections have become available at retail markets in the US. These include cultivars such as 'Cara Cara' navel orange, 'Cocktail' pummelo-mandarin hybrid, 'Variegated Pink' lemon, 'Seedless Kishu' mandarin and 'Buddha's Hand' citron.

"What should I watch for?" "I Have a Clogging Problem and I Want to Solve It" "How do I determine if I have a clogging problem?" "What should I do to keep my microirrigation system running well?

By the beginning of the irrigation season, the entire root zone is usually wetted by winter rainfall. Under low volume irrigation during the irrigation season only fifty percent or less of the root zone is wetted with each irrigation on most soil types.

Stem and leaf blights are symptoms that appear for various reasons high rainfall or humidity, spray burn, chewing insect infestation. Here in California we can add other causes, such as drought and salinity burn.

Here's a list of links for growers and homeowners on how to prepare for fire and in the case of fruit trees, how to treat them after they have burned and how to calculate the loss of a commercial fruit tree.