- Author: Karey Windbiel-Rojas
[Article originally appeared in the November 2014 issue of the Retail Nursery & Garden Center IPM News]
Although urban areas are important habitats for migrating birds, birds can also quickly become a nuisance or economic issue when they begin nesting in colonies on buildings and other structures. Their activities can result in disruptive noises, lead to potential structural damage (Figure 1), and their droppings can create aesthetic and human health problems. The most effective method to keep migrating and nesting birds from becoming a nuisance or causing building damage is to exclude them.
Want to be a part of the University of California Division Agriculture and Natural Resources and UC Statewide Integrated Pest Management Program? Now is the time to apply!
The UC IPM Urban & Community team has two position vacancies currently under recruitment:
Area Integrated Pest Management Advisor, Urban Entomology
County Location: Los Angeles County
Posted on October 30, 2014
Closing on January 3,...
As temperatures drop and seasonal moisture returns to California, some pests may seek shelter or overwintering sites within homes and other structures. These seasonal nuisance pests (or “occasional invaders”) can cause concern in residents and may lead to unnecessary, ineffective, and potentially harmful pesticide applications, both inside and out. Be prepared to educate your customers about nonchemical exclusion tools, materials, and techniques that can prevent pest entry over the long term, helping to reduce pesticide use around our homes and environment.
Pests invade homes for varying reasons during autumn and winter. Common outdoor species such as
- Author: Chuck Ingels, UCCE Sacramento
Most people think about pruning fruit trees during the winter since the branch structure is most visible and winter is considered the traditional time to prune deciduous trees. Actually, pruning fruit trees mainly during the growing season is a good practice and with some species such as apricots and cherries, pruning between September and March in northern California could lead to detrimental canker diseases.
Cherries, apricots, and a few related species are particularly susceptible to fungal and bacterial canker diseases, including Eutypa dieback, Botryosphaeria canker, and bacterial canker. Pathogens can be spread by rain or tree wounds – such as pruning wounds – during wet weather; subsequent infections spread...
Winter is a key time for gardeners to take preventive actions against peach leaf curl in some areas in California. Caused by the fungus Taphrina deformans, peach leaf curl causes distortion, thickening, and reddening of foliage as peach and nectarine trees leaf out in the spring. Damaged leaves often die and drop, but they will be replaced with new, healthier leaves once the weather turns dry and warm. An untreated leaf curl infection will contribute to a tree's decline over several years.
To prevent peach leaf curl in areas where the disease occurs, treat susceptible trees with preventive fungicides during the dormant season, ideally in late November or December. A second application should...