Topics in Subtropics

Much has been made of the lethal effects of eucalyptus when living plants and their residues are near other desirable plants. Blue gum eucalyptus probably is the most widely grown euc in California and it particularly carries the onus of being a bad neighbor.

Laurel Wilt Disease (LWD) is caused by the fungus Raffaelea lauricola and is transmitted to host trees by the redbay ambrosia beetle (Xyloborus glabratus) (RAB). During 2002 this exotic beetle was introduced into Port Wentworth, GA, via infested solid wood packing material.

Sonia Rios, Area Subtropical Horticulture Advisor, Riverside & San Diego Counties Henry Herrera, Forester, California Department of Forestry and Fire Protection (CAL FIRE) Gary Bender, Subtropical Horticulture Advisor, Emeritus, San Diego County This is a reposting of a blog from 2015 that is still...

Irrigation volume and frequency: soil, salinity and nutrient considerations Author: Mark Battany Published on: July 18, 2019 Irrigation frequency and volume One fundamental decision that a grower needs to make is how frequently to irrigate a vineyard; either applying small amounts of water frequentl...

ITHACA, NY, July 22, 2019 - Protecting crops from pests and pathogens without using toxic pesticides has been a longtime goal of farmers. Researchers at Boyce Thompson Institute have found that compounds from an unlikely source - microscopic soil roundworms - could achieve this aim.