From the Retail Nursery an Garden Center IPM News Fall 2018 newsletter
Managing Weeds in Landscapes
Nurseries and garden centers often sell a wide range of plants for use in gardens and landscapes. Your customers may manage a complex array of different landscape plantings, including woody trees and shrubs, woody ground cover beds, annual flower beds, herbaceous perennial beds, and mixed plantings (Figure 1). This complexity often makes weed management difficult. An integrated approach is the most economical and efficient way to control weeds, so knowing strategies for managing weeds in a variety of landscapes can help you advise customers.
A few months ago I wrote about starting some tests looking at various postemergence herbicides for non-crop use. This project was initiated due to new ordinances some cities in southern California were considering or adopted that limited the use products containing glyphosate on city owned property. I changed up some of the products from the original test I did and repeated some others.
Some are listed as organic and some are organic but not be organically approved by a certifying agency e.g. OMRI. One is listed as a biopesticide (Fiesta). One is a synthetic pesticide (Finale) that may be a good replacement in certain situations.
- Author: Guy B Kyser
This is a new-to-me weed, even though it's growing all around Robbins Hall where I've been working since typewriter times. Fumitory (Fumaria spp.) is a lacy, vine-like annual native to Europe. Looks sort of like parsley, though it's not related. It doesn't have tendrils, but it has 'grabby' foliage, and it drapes over other plants and fences by coiling its stem ends. Fumitory is in the poppy family (Papaveraceae). Its flowers are small, white to purplish, and bilateral in axillary racemes.
I figured out what this was by using this weed ID tool available through the