Ongoing research

Grey Sage By Jutta Thoerner UCCE Master Gardener Salvia leucophylla Planting Zone: 7-10 Size: 3 to 6 foot tall, width: spreading habit depending on water and age 2 feet plus. Bloom season: light purple blossoms from May to July Exposure: sun. Pruning needs: none. Water needs: Low; once established.

A sugar volcano is one symptom that shows your avocado tree might be infected with Fusarium dieback, a fungi spread by a beetle called the shothole borer. But what you might see if your tree is being attacked by shothole borer, varies among the different kinds of tree hosts.

Spring is in full swing and summer is right around the corner. If you work in agricultural, turf, landscape, or structural settings, you are probably at your busiest. If you handle pesticides as part of your work, you most likely wear some sort of personal protective equipment (PPE).

UC ANR Integrated Pest Management Program A sugar volcano is one symptom that shows your avocado tree might be infected with Fusarium dieback, a fungi spread by a beetle called the shothole borer.

Stormwater and Sediment Management in Plasticulture Tunnels 13 June, Wednesday 8:30 AM-NOON At UC Hansen Agricultural Center at Santa Paula (from hwy 126 exit Briggs, the entrance gate is ~1000 ft on the left on Briggs road) 8:30 Registration, (interpretation into Spanish provided for the program).

The Legislature is still working out the details of the state budget, which is due June 15, but UC is poised to get a major funding boost that will help enroll thousands of additional state students and eliminate the need for tuition increases in the coming school year.

UC ANR Statewide IPM Program, Writer/Editor, (530) 750-1237 Spring is in full swing and summer is right around the corner. If you work in agricultural, turf, landscape, or structural settings, you are probably at your busiest.

Hannah Kahl and Tobias Mueller, research staff for Dr. Bodil Cass and Dr. Jay Rosenheim in the Entomology Department of UC Davis are conducting experiments in the laboratory and orchards at Lindcove Research and Extension Center.

A recent call about the poor control of marestail (horseweed, Conyza canadensis) to glyphosate (Roundup) wasn't surprising, but that paraquat didnt do the trick was. It turns out that there is multiple resistance to the materials.

Advice for the Home Gardener from the Help Desk of the UC Master Gardener Program of Contra Costa County Client's Request: I have a Crape Myrtle bush/tree that is about 15 years old. The last 4 to 5 years it starts out with new growth in the spring with nice green leaves.