[From the April-May 2016 issue of the UC IPM Green Bulletin]
A downy mildew caused by the fungus Peronospora mesembryanthemi has recently been confirmed by the USDA-APHIS from a red apple ice plant (Aptenia cordifolia) sample collected in San Diego. Since this first finding in San Diego County in summer 2015, the disease has spread to Orange, San Bernardino, and Ventura counties and is now found in the Goleta area in Santa Barbara County.
Peronospora mesembryanthemi was first reported from South Africa and...
/span>[From the April-May 2016 issue of the UC IPM Green Bulletin]
The Erythrina stem borer (ESB) (sometimes also known as the Erythrina twig borer), Terastia meticulosalis, a potentially devastating moth pest of Erythrina spp. (coral trees), has been sighted numerous times in southern California in the latter half of 2015, from San Diego to Ventura.
Erythrina, a member of the Fabaceae (bean family) encompasses about 112 species and includes some of our most useful, valuable, well adapted, and spectacular flowering trees,...
/span>World Migratory Bird Day (May 10) is a yearly event to help promote awareness about migratory birds and their habitats. The campaign celebrates the migration of birds across countries and continents and focuses on their conservation.
However, during their migration, these birds may cause problems for occupants in urban areas. The birds may nest in colonies on buildings and other structures and their activities can be a nuisance.
Laws that Protect Birds
If migratory bird activities are causing issues in your building, make sure you know the law before you take any action. Certain birds that nest on dwellings may be protected under the
/h2>- Author: Anne Schellman
- Author: Karey Windbiel Rojas
Gardeners and other consumers frequently look to retail nursery and garden center employees to answer questions about pests and pesticides. To help retailers stay abreast of current pest topics facing California, UC IPM held a workshop for retail employees on January 28, 2016 in Ontario, CA focusing on integrated pest management (IPM) concepts and current issues. Partnering with local UC Cooperative Extension (UCCE) Advisors and Specialists, the day was filled with information participants could bring back to customers to address their pest and plant problems.
Topics addressed in these workshops include:
- Invasive Pests
- Asian citrus psyllid and...
Weeds can be found in just about every lawn. Weeds are not only unattractive to some people, but they compete with turfgrass for water and nutrients. But did you know that weeds are seldom a problem in well-managed, vigorously growing lawns?
Why Does Your Lawn Have Weeds?
Most lawns fall prey to weeds due to poor maintenance practices that weaken it. The three main factors likely to weaken lawns are improper irrigation, fertilization, or mowing.
In order to know how to manage weeds correctly, you'll need to identify the weeds and understand their life cycle. Certain weeds are associated with conditions such as compacted soil, overwatering, and poor drainage.
Weed Management
The newly updated...
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