An Agricultural Research Service (ARS) researcher has grown a new apparatus to assistance Florida avocado producers endangered about a illness that is murdering their trees. It’s a captivate that creates it easier to detect and control a invasive harassment that spreads a disease.
Laurel shrivel illness is widespread by a redbay ambrosia beetle (RAB), that bores into a tree, deposits a mildew (Raffaelea lauricola), and triggers a defensive response that blocks a upsurge of H2O to a top tree and limbs. Once infected, a tree can shrivel and die within dual months.
The Florida Department of Agriculture monitors for RAB with traps containing cubeb oil lures. But ARS entomologist Paul Kendra and his partners during Synergy Semiochemicals Corp. have grown an softened captivate that emits aloft levels of a pivotal attractant. The compound, famous as a-copaene, is found in a timber of avocado and other accolade trees. Kendra is formed during a ARS Subtropical Horticulture Research Station in Miami, Florida.
The efforts have implications distant over Florida’s $23-million avocado industry. The illness was initial rescued in Miami-Dade County groves in 2012 and has given widespread to 9 other southeastern states. It could clean out a $468-million avocado stand in California and a $1.2-billion avocado attention in Mexico if left unchecked.
Kendra and his colleagues strong cubeb oil, separating out a chemical compounds for analysis, and unprotected RAB to some of a many earnest compounds to establish that ones were a many attractive. Based on investigate results, they grown dual antecedent lures and compared how good a dual prototypes and a stream cubeb captivate captivated RABs during a three-month margin trial.
The initial captivate with 50-percent a-copaene prisoner dual to 3 times some-more beetles and could detect beetles even when they were in low numbers in avocado groves. The “high octane” captivate also captivated RABs during a whole three-month trial. Synergy Semiochemicals, formed in British Columbia, Canada, is now producing a captivate for forestry and rural use.
Read some-more about this investigate in a Nov 2016 AgResearch.