The latest issue of the Retail Nursery and Garden Center IPM Newsletter is now available. In this newsletter we address the science surrounding herbicides, personal protective equipment when using pesticides, and our upcoming training exclusively for retail nursery and garden center employees. Read the full newsletter on our website.
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Many gardeners and landscapers enjoy growing and caring for roses. Through careful selection of varieties and appropriate cultivation, roses can be grown with a minimum of pest problems. Establishing rose plants to grow in environments with adequate conditions will allow them to grow well, while reducing their susceptibility to pests.
Find more information on growing healthy roses in UC IPM's newly updated Pest Notes: Roses in the Garden and Landscape: Cultural Practices and Weed Control, authored by John Karlik, Environmental Horticulture Advisor with UC Cooperative Extension, Kern County.
What's new in this version? You'll find examples...
[From the May 2017 issue of the UC IPM Green Bulletin]
It's among every landscape professional's worst nightmares: returning to a landscape recently treated with an herbicide to find previously healthy trees looking “strange.” These strange findings could be leaves with bleached-out veins, twisted shoots, dying twigs, or stunted new growth appearing in unusual places.
This nightmare situation occurred several years ago on coniferous trees in many Midwestern landscapes where a presumably “safe” herbicide labeled for use.../span>